YOKOGAWA FG420 User Manual
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YOKOGAWA FG420 User Manual

YOKOGAWA FG420 User Manual

Arbitrary/function generator
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User's
Manual
nbn Austria GmbH
FG410/FG420
Arbitrary/Function Generator
User's Manual(Basic)
IM FG410-01EN
6th Edition

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Summary of Contents for YOKOGAWA FG420

  • Page 1 User's Manual FG410/FG420 Arbitrary/Function Generator User’s Manual(Basic) IM FG410-01EN 6th Edition nbn Austria GmbH...
  • Page 2 Contact Us If you want to resolve a technical support issue or need to contact YOKOGAWA, please fill out the inquiry form on our website. https://tmi.yokogawa.com/contact/ PIM 103-06E...
  • Page 3 To ensure correct use, please read this manual thoroughly before beginning operation. Keep this manual in a safe place for quick reference in the event that a question arises. The following nine manuals, including this one, are provided as manuals for the FG410/FG420. Please read all manuals.
  • Page 4 ● This manual has the following chapter organization. Instruction manuals of the FG410/FG420 are divided to two volumes, Basics and Application. Instructions for remote control (GPIB and USB) are provided separately. If reading this manual for the first time, start from 1. OVERVIEW of the Basics Instruction Manual.
  • Page 5 2. CREATING ARBITRARY WAVEFORMS Explains how to input and edit arbitrary waveforms from the panel control. 3. HANDY USE OF 2-CHANNEL DEVICE (FG420 ONLY) Explains how to operate two channels at the same time. 4. SYNCHRONIZING MULTIPLE UNITS Describes how to configure a multi-phase oscillator by connecting multiple units of this product.

  • Page 6: Safety Precautions

    This product is designed to be used by a person with specialized knowledge. To ensure safe use, be sure to observe the following warnings and cautions. Yokogawa Test & Measurement Corporation shall not be held liable for damages that arise from a failure to observe these warnings and cautions.
  • Page 7 égale à 100 . Le FG410/FG420 est automatiquement relié à la terre lorsque l’on branche la fiche secteur à 3 broches sur une prise d’alimentation à 3 boches équipée d'un contact de mise à la terre de protection.
  • Page 8 ● Safety-related symbols The general definitions of the safety-related symbols used on this product and in the instruction manual are provided below. Instruction Manual Reference Symbol This symbol is displayed to alert the user to potential danger and refer him/her to the instruction manual.

  • Page 9: Authorized Representative In The Eea

    This product complies with the WEEE marking requirement. This marking indicates that you must not discard this electrical/electronic product in domestic household waste. When disposing of products in the EEA or UK, contact your local Yokogawa office in the EEA or UK respectively.
  • Page 10 IM FG410-01EN VIII...

  • Page 11: Table Of Contents

    Panel Components and Operations ..............10 3.1.1 Front panel of FG410 .................10 3.1.2 Rear panel of FG410 .................. 11 3.1.3 Front panel of FG420 .................12 3.1.4 Rear panel of FG420 ..................13 I/O Terminals ......................14 3.2.1 Waveform output (FCTN OUT) ..............15 3.2.2 Sync/sub-output (SYNC/SUB OUT) ............15...
  • Page 12 Operations of ENTER key, CANCEL key, and UNDO key ......39 4.3.5 Changing the display unit ................40 4.3.6 CH1/CH2 switching key and active channel (FG420 only) ......42 4.3.7 Actions possible in the Utility screen ............43 4.3.8 Restoring the initial settings ................45 4.3.9...
  • Page 13 Sweep Setting and Manipulation ................87 4.8.1 Sweep types ....................87 4.8.2 Screen for sweep setting and manipulation ..........87 4.8.3 Common sweep settings and manipulations ..........90 4.8.4 Setting frequency sweep ................99 4.8.5 Setting phase sweep ................101 4.8.6 Setting amplitude sweep ................103 4.8.7 Setting DC offset sweep ................105 4.8.8 Setting duty sweep ...................107...
  • Page 14 Figure 3-5. Multi-I/O Connector Pin Assignment ............20 Figure 3-6. Cautions on Floating Ground Connection for FG410 ......23 Figure 3-7. Cautions on Floating Ground Connection for FG420 ......24 Table 3.1 Signals Selectable for Sync/Sub-Output ..........15 Table 3-2. Multi-I/O Connector Function Allocation ..........20...

  • Page 15: Overview

    OVERVIEW Features The FG410 and FG420 are arbitrary/function generator based on direct digital synthesizers (DDS). The FG410 is a 1-channel generator, while the FG420 is a two-channel generator. • Highest frequency: 30 MHz (sine wave), 15 MHz (square wave, pulse) •...

  • Page 16: Operating Principles

    1.OVERVIEW Operating Principles FG410 block diagram ANALOG EXTERNAL ±1V MODULATION MOD/ADD WA VE MEMORY EXTERNAL ADDITION 16bit ×2 512Kw ±2Vmax FCTN ISOLATION ±10Vmax ×5 0/-10/-20/-30dB 16bit- TTL/±3V SYNC/SUB 120MHz CLOCK GENERATOR DC OFFSET 20MHz 100V ...230V ～LINE AC/DC 10MHz REF IN +12V REF OUT for ANALOG...
  • Page 17 MULTI UNIT • The analog block is insulated from the system controller block located in the housing potential. • In the FG420, the analog block comprises two channels, each individually isolated from the housing potential. System controller block • This block performs control of the analog block, including the display, panel key processing, remote control (GPIB, USB) processing, trigger input processing, frequency reference control, DDS control, amplitude, and DC offset.

  • Page 18: Preparations Before Use

    2.1 Checking Before Use a) Safety check To ensure safety in using the FG410/FG420, the user should read the following sections of this instruction manual before using the FG410/FG420: • Safety Precautions (provided at the beginning of this instruction manual) • 2.3 Grounding and Power Supply Connection...
  • Page 19 Main unit ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 1 Instruction Manual (Basics IM FG410-01EN) ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 1 Inquiries (PIM 113-01Z2) ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 1 FG410/FG420 Arbitrary / Function Generator (IM FG410-92Z1) ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 1 Safety Instruction Manual (IM 00C01C01-01Z1) ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 1 CD (PDF instruction manuals, application software) ‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧‧ 1 PDF instruction manuals: Arbitrary &...

  • Page 20: Installation

    AVERTISSEMENT Cet appareil contient des pièces sous haute tension. N'ouvrez jamais le couvercle. Toute inspection interne de cet appareil doit être effectuée exclusivement par des techniciens de service qualifiés par Yokogawa Test & Measurement Corporation. c) Repacking When repacking this equipment for transportation, etc., use a shipping carton of sufficient strength and capacity to safely accommodate the equipment and hold its weight.
  • Page 21 Further, a condensation-free environment must be ensured. For limitations related to absolute humidity, refer to the specifications in this manual. • Do not install the FG410/FG420 in the following locations: • Location with flammable gas An explosion may occur. Never install and use this product in such a location.

  • Page 22: Grounding And Power Supply Connection

    Voltage range: 100 V AC to 230 V AC ±10% (250 V or lower) Frequency range: 50 Hz/60 Hz Power consumption: FG410: 50 VA or lower; FG420: 75 VA or lower c) Power supply connection procedure 1) Check that the commercial power supply voltage to be connected is within the voltage range specified for the equipment.

  • Page 23: Calibration

    2.4 Calibration ATTENTION Utiliser le cordon d’alimentation et la fiche adaptés. Pour éviter tout risque de choc électrique, utiliser exclusivement le cordon d’alimentation prévu pour cet instrument. La fiche doit être branchée sur une prise secteur raccordée à la terre. En cas d’utilisation d’une rallonge, celle-ci doit être impérativement reliée à...

  • Page 24: Panels And I/O Terminals

    PANELS AND I/O TERMINALS 3.1 Panel Components and Operations This section describes the names and functions of the various components on the front and rear panels. 3.1.1 Front panel of FG410 図 Numeric keypad Used for numerical input  p. 35 UNDO key Basic parameter Press to undo setting changes. shortcut keys ...

  • Page 25: Rear Panel Of Fg410

    3.1 Panel Components and Operations 3.1.2 Rear panel of FG410 Exhaust vent  p. 6 Power supply input  p. 8 USB connector GPIB connector Multi-I/O connector Used for sweep, sequence control, sync code output  p. 19 Frequency reference output terminal ...

  • Page 26: Front Panel Of Fg420

    When on, the lamp on the left is lit. Press to switch the channel  p. 45 to be set on the LCD panel. CH1 waveform output terminal  p. 42  p. 15 Figure 3-3. Front Panel of FG420 IM FG410-01JA...

  • Page 27: Rear Panel Of Fg420

    Frequency reference output terminal  p. 18 External 10 MHz frequency reference input terminal  p. 17 CH2 external modulation/addition input terminal  p. 16 CH1 external modulation/addition input terminal  p. 16 Figure 3-4. Rear Panel of FG420 IM FG410-01JA...

  • Page 28: I/O Terminals

    3. PANELS AND I/O TERMINALS I/O Terminals To prevent electric shocks, do not apply a voltage exceeding 42 Vpk WARNING (DC+AC peak) between the ground of the BNC connectors insulated from the housing and the housing. Also, do not apply a voltage exceeding 42 Vpk (DC+AC peak) between the grounds of the BNC connector groups insulated from the housing. “BNC connector group”, as used here, refers to multiple BNC connectors that are connected to a common ground. If such a voltage were to be applied, the internal voltage limiting elements will try to curb the working voltage, but if the voltage is too large, equipment burnout may result.  p. 22 Pour éviter les chocs électriques, n’appliquez pas de tension AVERTISSEMENT supérieure à 42 Vpk (c.c. + c.a. crête) entre la terre des connecteurs BNC isolés du logement et le logement lui-même. En outre, n’appliquez pas une tension supérieure à 42 Vpk (c.c. + c.a. crête) entre les mises à la terre des groupes de connecteurs BNC isolés du logement. L’expression « groupe de connecteurs BNC » se réfère à plusieurs connecteurs BNC branchés sur une même mise à la terre. Si de telles tensions sont appliquées, les composants de limitation de tension interne tentent de diminuer la tension de fonctionnement. Mais la tension est trop élevée, l’appareil risque de griller.  p. 22 Do not apply a voltage from external to the output terminal, as this CAUTION may damage the equipment. ATTENTION N’appliquez pas de tension d’une source externe sur la borne de sortie : vous risqueriez d’endommager l’appareil. Do not apply a voltage exceeding the maximum input level to the CAUTION input terminal, as this may damage the equipment.

  • Page 29: Waveform Output (Fctn Out)

    Maximum ±10 V/open Output impedance Ω Ω Load impedance or higher (short-circuit protection provided) Signal GND Insulation from the housing (42 Vpk max.) FG420: Insulation also between channels (42 Vpk max.) 3.2.2 Sync/sub-output (SYNC/SUB OUT) FG410 FG420 SYNC/SUB OUT [Insulated from housing] SYNC/SUB OUT...

  • Page 30: External Modulation/Addition Input (Mod/Add In)

    Ω Load impedance Ω or higher recommended Signal GND Same potential as same channel waveform output, insulated from housing (42 Vpk max.). FG420: Insulation also between channels (42 Vpk max.) 3.2.3 External modulation/addition input (MOD/ADD IN) FG410 FG420 MOD/ADD IN MOD/ADD IN MOD/ADD IN...

  • Page 31: External Trigger Input (Trig In)

    3.2 I/O Terminals 3.2.4 External trigger input (TRIG IN) FG410 FG420 TRIG IN TRIG IN TRIG IN TRIG IN may be used as external trigger input in the following cases. The polarity setting can be changed. • Single-shot sweep start trigger  p. 94.

  • Page 32: Frequency Reference Output (Ref Out)

     “4. SYNCHRONIZING MULTIPLE UNITS” in the Application Instruction Manual The frequency accuracies of the connected FG410 and FG420 units are all the same as that of the master unit. An external frequency standard can also be used for the master unit.

  • Page 33: Multi-I/O (Multi I/O)

    Signal GND Same potential as housing Check Do not connect any equipment other than the FG410 and FG420 not specified by YOKOGAWA to the frequency reference output. The special signal that is output from this terminal during synchronization may make the operation of such connected equipment unstable.

  • Page 34: Figure 3-5. Multi-I/O Connector Pin Assignment

    3. PANELS AND I/O TERMINALS Check When not using control input for multi-I/O connector, it is recommended to disable control input to prevent malfunction due to external noise.  p. 98 Figure 3-5. Multi-I/O Connector Pin Assignment Table 3-2. Multi-I/O Connector Function Allocation Sweep Oscillation Sequence Oscillation Option Cable Color and...
  • Page 35 10 k Ω , pull up to +5 V Output voltage TTL level (low: 0.4 V or lower; high: 2.7 V or higher) Signal GND Same potential as housing Connector Mini D-sub 15-pin The connection cable is an option. Contact YOKOGAWA or the dealer for details. IM FG410-01JA...

  • Page 36: Cautions On Floating Ground Connection

    Moreover, the potential has no influence even when the equipment is mounted in a rack. In the FG420, the above-mentioned BNC terminals are also insulated between channels. Further, the signal ground of the external 10 MHz frequency reference input is also insulated from the housing.

  • Page 37: Figure 3-6. Cautions On Floating Ground Connection For Fg410

    3.3 Cautions on Floating Ground Connection If a difference in potential exists between the grounds of the BNC CAUTION connectors, do not short circuit these BNC connector grounds, as this may damage the equipment. ATTENTION En cas de différence de potentiel entre les terres et les connecteurs BNC, ne mettez pas en court-circuit ces terres de connecteurs BNC : vous risqueriez d’endommager l’appareil. Cautions on Floating Ground Connection for FG410 FCTN OUT ANALOG SYNC/SUB OUT MOD/ADD IN Use with potential Use with potential difference of 42 Vpk or 1MΩ difference of 42 Vpk or less. less.

  • Page 38: Figure 3-7. Cautions On Floating Ground Connection For Fg420

    Use with potential of 42 Vpk or less. difference of 42 Vpk or less. 10MHz REF IN Use with potential difference of 42 Vpk or less. 1MΩ Housing ground Figure 3-7. Cautions on Floating Ground Connection for FG420 IM FG410-01JA...

  • Page 39: Basic Operation

    BASIC OPERATION 4.1 Power on/off Switching and Restoration of Settings 4.1.1 Power on/off switching method Power-on procedure The startup screen is displayed Press the power switch. Power off state (standby state) The power is switched on. Once the power is switched on, a self-check test is automatically executed and the unit becomes operable. Power-off procedure The display goes off.

  • Page 40: Restoration Of Settings At Power-On

    4. BASIC OPERATION 4.1.2 Restoration of settings at power-on When the power is switched on/off with the power switch, the settings before the previous time the power was switched off are restored when the power is switched on again. The output on/off settings at power-on can be set on the Utility screen.  p.45 However, if the power supply to the equipment is directly cut off while the equipment's power is on, the settings are set to the contents of setting memory 1 when the equipment is powered on again.
  • Page 41 4.1 Power on/off Switching and Restoration of Settings The settings before the equipment was powered off last are restored. The output on/off settings at power-on can be set on the Utility screen.  p.45 Check The previous settings can be restored only if the equipment was powered off using the power switch.
  • Page 42 4. BASIC OPERATION b) Restoration of settings during power supply on/off This applies to switching the power supply on/off at one time for this equipment and other embedded devices when this equipment is mounted in a rack. When the power supply is cut off while the equipment power is on, the equipment power automatically goes on the next time the power supply is reconnected.

  • Page 43: Screen Configuration And Operation

    • Sequence status/channel mode (FG420 only) The status when the sequence oscillation mode is selected is displayed. In the FG420, the mode when the channel mode is other than independent (2-phase, constant frequency difference, constant frequency ratio, and differential output).
  • Page 44 4. BASIC OPERATION Setting area This area is used to display and set the various parameters. When multiple display formats can be selected, display format switch tabs are displayed on the left side of the screen.  p.31 Due to the large number of setting parameters in the case of modulation, sweep, and burst oscillation, the setting screen consists of two or three pages.

  • Page 45: Switching Display Format With Tabs (Displaying Waveform Graph)

    2-channel simultaneous display [Dual] (FG420 only) Displays the settings of channel 1 and channel 2 in text form vertically superposed. The channel to be set can be switched with the CH1/CH2 key.
  • Page 46 The settings can be done while checking the image of the output The Graph tab waveform on this screen. screen is displayed. ENTER Check In the FG420, display can be switched between 1-channel display and 2 channel simultaneous display. IM FG410-01EN...

  • Page 47: Top Menu

    4.2 Screen Configuration and Operation 4.2.3 Top menu Sequence oscillation, arbitrary waveform editing, system settings, saving and recalling settings, and other actions are done by selecting the desired item from the top menu. a) Displaying the top menu Press the menu key to display the following top menu window. MENU The top menu window opens.

  • Page 48: Basic Settings And Operations

    4. BASIC OPERATION 4.3 Basic Settings and Operations 4.3.1 Changing the frequency, amplitude, and other values a) Changing a value with the up/down arrow keys or the modify knob Select the desired item with the arrow keys or the modify knob.In the example on the left, the [Freq] frequency field is selected. The frequency Item selection is selected.
  • Page 49 4.3 Basic Settings and Operations Press the ENTER key to close the input field. ENTER The input field has closed. If the CANCEL key is pressed instead of the ENTER key, the value changed with the modify knob is discarded and the status of step 1 (pre-change setting) is returned to.
  • Page 50 4. BASIC OPERATION Check If a setting item is displayed on a soft key, the input field for that item can be opened by pressing that soft key. IM FG410-01EN...

  • Page 51: Changing The Waveform And Oscillation Mode

    4.3 Basic Settings and Operations 4.3.2 Changing the waveform and oscillation mode Select the desired item with the a r r o w k e y s o r t h e m o d i f y k n o b . In the example on the left, the [Fctn] (waveform) field is selected.

  • Page 52: Manipulating Shortcut Keys For Changing Basic Parameters

    4. BASIC OPERATION 4.3.3 Manipulating shortcut keys for changing basic parameters The choice list or input field for waveform, frequency, amplitude, and DC offset can be immediately opened with the corresponding basic parameter shortcut key. Waveform ■ 　 p. 48 The waveform choice list opens.

  • Page 53: Operations Of Enter Key, Cancel Key, And Undo Key

    4.3 Basic Settings and Operations 4.3.4 Operations of ENTER key, CANCEL key, and UNDO key ■ ENTER key operation The ENTER key can be used to perform the following actions. ・ Open the input field or choice list for the selected item ・ Set the value input from the numeric keypad ・...

  • Page 54: Changing The Display Unit

    4. BASIC OPERATION 4.3.5 Changing the display unit a) Changing the prefix (unit prefix: k, m, M, etc.) Frequency is used as an example below. The amplitude and pulse width can be changed in a similar manner. Select frequency and then press the ENTER key to open the input field. ENTER The input field opens.
  • Page 55 4.3 Basic Settings and Operations b) Changing Vp-p, Vrms, user-defined unit, etc. Amplitude is used as an example below. The frequency and pulse width can be changed in a similar manner. Select amplitude and then press the ENTER key to open the input field. ENTER The input field opens.

  • Page 56: Ch1/Ch2 Switching Key And Active Channel (Fg420 Only)

    4. BASIC OPERATION 4.3.6 CH1/CH2 switching key and active channel (FG420 only) The channel to be set is switched each time the CH1/CH2 switching key is pressed. MENU This key is invalid in setting screens that are channel independent. FCTN OU T CH 1/CH 2 The channel that is to be set is called the “active channel”...

  • Page 57: Actions Possible In The Utility Screen

    Sets the output on/off setting at power-on.  p.45 Phase synchronization[ f Sync] Performs inter-unit synchronization during multiple unit synchronization connection and inter- channel synchronization of the FG420.  “3.3 Phase Synchronization Between Channels” and “4. SYNCHRONIZING MULTIPLE UNITS” in the Application Instruction Manual.
  • Page 58 Copies the settings between channels.  “3.1 Copying Settings Between Channels” in the Application Instruction Manual. 2-channel same value setting On/Off [Both] (FG420 only) Switches on/off setting of the same value for both channels.  “3.2 Unifying Settings of 2 Channels”...

  • Page 59: Restoring The Initial Settings

    4.3 Basic Settings and Operations 4.3.8 Restoring the initial settings The initial settings can be restored from the Utility screen. The initial settings that are restored consist of continuous oscillation, sine wave, 1 kHz, 0.1 Vp-p/ open, and output off. For a list of the initial settings, ...
  • Page 60 4. BASIC OPERATION • Return to previous setting [Last State] The operation differs as follows according to the method used the previous time to set the power off. If the power was switched off the previous time with the power switch on the panel The settings before the power was switched off are restored.

  • Page 61: Setting Methods For Main Items

    4.4 Setting Methods for Main Items 4.4 Setting Methods for Main Items This section describes the setting methods for the main items, mainly done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the Oscillator setting screen. When another screen is displayed, pressing the MENU key displays the top menu, so select [Oscillator] and then press MENU...

  • Page 62: Setting The Waveform

    4. BASIC OPERATION 4.4.3 Setting the waveform Press the FCTN shortcut key FCTN to display the waveform choice list. Alternatively, select the [Fctn] field and press the ENTER key to open ENTER the choice list. Waveform choice list Even if there are several setting screens, the [Fctn] field is always displayed at the top right of the first page.

  • Page 63: Performing Setting With Period

    4.4 Setting Methods for Main Items 4.4.5 Performing setting with period Settings can be performed using the period instead of the frequency. The frequency display can be changed to the period display with one of the following two methods. Changing to period display with [Freq] / [Period] soft key When the frequency input field is open and the current frequency is displayed, the [Period] soft key is displayed.
  • Page 64 4. BASIC OPERATION b) Items that can be changed in the phase setting The following items can be changed with the phase setting. The phase difference between the sync/sub-output’s reference phase sync output and waveform output can be changed The following example assumes a phase setting of +90°. At this time, the waveform output’s zero phase position is 90° ahead of the rise of the reference phase sync output. Phase setting: +90°...
  • Page 65 4.4 Setting Methods for Main Items The phase difference between channels during sync oscillation and 2-phase oscillation can be changed (FG420 only) The difference between the phase setting of each channel is the phase difference between channels. If [CH2 phase setting - CH1 phase setting] is positive, the waveform of CH2 is ahead of the waveform of CH1, as shown in the following figure.

  • Page 66: Setting The Amplitude

    4. BASIC OPERATION 4.4.7 Setting the amplitude a) Setting method Press the AMPTD shortcut key AMPTD to open the amplitude input field. Alternatively, select the [Amptd] field and then press the ENTER key ENTER Amplitude input to open the amplitude input field. field Even if there are several setting screens, the [Amptd] field is always displayed on the first page.
  • Page 67 4.4 Setting Methods for Main Items d) AC+DC limitation The maximum value for [AC amplitude + DC offset] is limited to ±10 V/open. For example, if the AC amplitude is 5 Vp-p/open, the DC offset range is limited to the range from - 7.5 V/open to +7.5 V/open.

  • Page 68: Setting Dc Offset

    4. BASIC OPERATION 4.4.8 Setting DC offset a) Setting method Press the OFFSET shortcut OFFSET key to open the DC offset input field. Alternatively, select the [Offset] field and then press the ENTER key ENTER to open the DC offset input field. DC offset input Even if there are several setting field screens, the [Offset] field is always...

  • Page 69: Setting The Output Level With High Level/Low Level

    4.4 Setting Methods for Main Items 4.4.9 Setting the output level with high level/low level The output level can be set by specifying the high level and low level of the waveform, instead of setting the amplitude and DC offset. a) Changing the amplitude/DC offset display to high/low display There are three methods for changing the amplitude/DC offset display to high/low display, described below.

  • Page 70: Setting The Waveform Polarity And Amplitude Range

    4. BASIC OPERATION 4.4.10 Setting the waveform polarity and amplitude range a) Setting method Select the polarity/amplitude range Select the icon to the right of the waveform polarity/amplitude range icon and name to display the current polarity/ then press the amplitude range settings under that ENTER key. icon.
  • Page 71 4.4 Setting Methods for Main Items c) Amplitude range determination method Determine the amplitude range by observing how the waveform changes when the amplitude is changed. Under the initial settings, the waveform oscillating between the two polarities is set to ±FS, while the unipolar waveform is set to 0/+FS.

  • Page 72: How To Use Auto Range/Range Hold For The Output Voltage

    4. BASIC OPERATION 4.4.11 How to use auto range/range hold for the output voltage Since auto range is set as part of the initial settings, the optimum range is automatically selected according to the amplitude and DC offset (including settings with high level and low level). A transient voltage is generated when the range is changed, but control is performed so that overvoltage does not result.

  • Page 73: Setting The Load Impedance

    4.4 Setting Methods for Main Items 4.4.12 Setting the load impedance When the load impedance setting value is made the same as the actual load condition, the amplitude and DC offset (including setting with high level, low level) can be set with the voltage value that appears at load end.
  • Page 74 4. BASIC OPERATION Check ・ The output impedance is constant at 50 Ω. ・ The output impedance error and output voltage error are not corrected. The output voltage accuracy specification is the load-open value. IM FG410-01EN...

  • Page 75: Adding External Signal

    An external signal can be added to the waveform output of this equipment. a) Connecting the addition signal Connect the addition signal to the external modulation/addition input (MOD/ADD IN) BNC terminal on the front panel and the rear panel in the FG410 and FG420, respectively. FG410 FG420...
  • Page 76 4. BASIC OPERATION Once the external addition settings have been completed, select [OK] in the lower part of the window and then press the ENTER key to apply ENTER the external addition setting change and close the window. To not change the external addition Select [OK] and setting, select [Cancel] in the lower then press the...

  • Page 77: Setting The Square Wave Duty

    4.4 Setting Methods for Main Items 4.4.14 Setting the square wave duty The waveform is assumed to be set to [Square]. For the waveform setting method,  p.48 . The duty setting unit is % only. Setting and display using time is not possible. a) Duty setting method Select the [Duty] field and then press ENTER key to open the...
  • Page 78 4. BASIC OPERATION c) Difference between normal and extended variable duty range Variable Range Characteristics Normal Setting range: 0.0100% to 99.9900% Range in which the duty can be changed with little jitter and no pulse loss The higher the frequency, the narrower the duty setting range. At 15 MHz, the duty is fixed to 50%. Extended Setting range: 0.0000% to 100.0000% (independent of the frequency) Jitter of 2.5 ns rms or less typ., duty can always be changed from 0% to 100%.

  • Page 79: Setting The Pulse Width And Leading/Trailing Edge Time Of A Pulse Wave

    4.4 Setting Methods for Main Items 4.4.15 Setting the pulse width and leading/trailing edge time of a pulse wave The waveform is assumed to be set to [Pulse]. For the waveform setting method,  p.48 . The pulse width can be set either with time or duty. The leading and trailing edge times can be set only with time. a) Pulse width time setting method Select the [Width] field and then press the...
  • Page 80 4. BASIC OPERATION Pulse width duty → Pulse width time When the pulse width duty input field opens and the current pulse width duty is displayed, the [Width] soft key is displayed. Press this soft key to open the pulse width time input field and change the item display from [Duty] to [Width]. The [Width] soft key changes to [Duty]. d) Difference between pulse width time setting and duty setting The following operation differences exist depending on whether the pulse width is set with time or duty.
  • Page 81 4.4 Setting Methods for Main Items f) Pulse width, leading edge time, and trailing edge time definitions and limitations The pulse width, leading edge time, and trailing edge time are defined as shown in the following figure. Pulse width 100% 90% 90% Leading edge Trailing edge time time Period However, the setting ranges of the pulse width, leading edge time, trailing edge time, and frequency are mutually limited as follows.

  • Page 82: Setting The Ramp Wave Symmetry

    4. BASIC OPERATION 4.4.16 Setting the ramp wave symmetry The waveform is assumed to be set to [Ramp] (ramp wave). For the waveform setting method,  p.48 . The symmetry setting unit is % only. Setting and display with time is not possible. a) Symmetry setting method Select the [Symm] field and then press the...

  • Page 83: Using Parameter-Variable Waveforms

    4.5 Using Parameter-Variable Waveforms 4.5 Using Parameter-Variable Waveforms a) Outputting a parameter-variable waveform Select the [PWF] parameter-variable waveform in the [Fctn] field and then press the ENTER key. ENTER The waveform that is currently set as the parameter-variable waveform is output. Select [PWF] Like for other waveforms, the polarity and then press and amplitude range of the waveform...
  • Page 84 4. BASIC OPERATION To return the variable parameter values to their initial value, press the [Reset] soft key. The change is instantly reflected to the output waveform, and the shape of the set waveform is displayed in graph form. For details on the variable parameters,  “1. DETAILS OF PARAMETER-VARIABLE WAVEFORMS”...

  • Page 85: Using Arbitrary Waveforms

    4.6 Using Arbitrary Waveforms 4.6 Using Arbitrary Waveforms a) Outputting an arbitrary waveform Select [ARB] (arbitrary waveform) in the [Fctn] field and then press the ENTER key. ENTER The currently set arbitrary waveform is output. Like for other waveforms, the polarity Select [ARB] and and amplitude range of the waveform then press the can also be changed.
  • Page 86 4. BASIC OPERATION To apply the changes and quit the selection screen, press the [OK] soft key. To discard the changes and quit the selection screen, press the [Cancel] soft key The changes can also be discarded and the selection screen exited by pressing a basic parameter shortcut key (the operation differs from that in the parameter-variable waveform selection screen).

  • Page 87: Modulation Setting And Manipulation

    4.7 Modulation Setting and Manipulation Modulation Setting and Manipulation 4.7.1 Modulation types The following eight types of modulation can be done. • FM: Frequency Modulation  p.79 . • FSK: Frequency Shift Keying This is binary frequency shift modulation.  p.80 . • PM: Phase Modulation  p.81 . •...

  • Page 88: Screen For Modulation Setting And Manipulation

    4. BASIC OPERATION 4.7.2 Screen for modulation setting and manipulation This subsection describes the screen configuration used in common for the modulated oscillation mode. The settings and manipulations are done on the Oscillator setting screen. The Oscillator setting screen is displayed as “Oscillator” in the top left part of the screen. When another screen is displayed, press MENU key to display the top menu, then select [Oscillator] and press the ENTER MENU...
  • Page 89 4.7 Modulation Setting and Manipulation Modulation source [Source] Either an internal or external modulation source can be selected.  p.76 Internal modulation waveform [ModFctn] This is the internal modulation source waveform. Sine, square, triangular, rising ramp, falling ramp, noise, and arbitrary can be chosen from.  p.76 Internal modulation frequency [ModFreq] This is the frequency of the internal modulation source.

  • Page 90: Common Modulation Settings And Manipulations

    4. BASIC OPERATION 4.7.3 Common modulation settings and manipulations This subsection describes the settings and manipulations that are common to all types of modulation. a) To set the oscillation mode to modulation → Oscillation mode setting On the Oscillator setting screen, set [Mode] (oscillation mode) to Select [Modulation] in [Mode] and then [Modulation]. This changes the mode press the ENTER to the modulated oscillation mode.
  • Page 91 4.7 Modulation Setting and Manipulation The internal modulation frequency cannot be set if the internal modulation waveform is noise. If the modulation type is FSK or PSK, the internal modulation waveform is fixed to a 50% duty square wave, and the internal modulation waveform cannot be selected. When an arbitrary waveform is selected for the internal modulation waveform, waveform data simply decimated to 4096 points from the start is used as the modulation waveform in case of the array format.
  • Page 92 4. BASIC OPERATION i) To output modulation sync signal, modulation waveform signal →Sync output setting Perform the sync output setting with [SyncOut] (sync output) on the 2nd page of the setting screen. The sync output setting can be chosen from the following three. • Signal synchronized with reference phase of waveform [Sync] •...

  • Page 93: Setting Fm

    4.7 Modulation Setting and Manipulation 4.7.4 Setting FM TThe output frequency varies according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to p.74 and p.76 . a) FM example Frequency shifting of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 94: Setting Fsk

    4. BASIC OPERATION 4.7.5 Setting FSK This is binary frequency shift modulation by which the output frequency switches between the carrier frequency and hop frequency according to the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to p.74 and p.76 .

  • Page 95: Setting Pm

    4.7 Modulation Setting and Manipulation 4.7.6 Setting PM The output phase varies according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to p.74 and p.76 . a) PM example Phase shifting of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 96: Setting Psk

    4. BASIC OPERATION 4.7.7 Setting PSK This is binary phase shift modulation by which the output phase is offset according to the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to p.74 and p.76 . a) PSK example Since the phase changes suddenly, the output signal waveform is non-continuous.

  • Page 97: Setting Am

    4.7 Modulation Setting and Manipulation 4.7.8 Setting AM The output amplitude changes according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer top.74 and p.76 . a) AM example The amplitude of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 98: Setting Am (Dsb-Sc)

    4. BASIC OPERATION 4.7.9 Setting AM (DSB-SC) The output amplitude varies according to the instantaneous value of the modulation signal. This is AM without the carrier frequency component. DSB-SC stands for Double Side Band - Suppressed Carrier. For the manipulation methods that are common with the modulation setting screen, refer to p.74 and p.76 .

  • Page 99: Setting Dc Offset Modulation

    4.7 Modulation Setting and Manipulation 4.7.10 Setting DC offset modulation DC offset varies according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to p.74 and p.76 . a) DC offset modulation example DC offset of the output signal grows larger when the modulation signal swings to the positive side. Modulation sync signal (during internal modulation) Modulation signal...

  • Page 100: Setting Pwm

    4. BASIC OPERATION 4.7.11 Setting PWM The duty of square waves and pulse waves varies according to the instantaneous value of the modulation signal. For the manipulation methods that are common with the modulation setting screen, refer to p.74 and p.76 . a) PWM example The duty of the output signal grows larger when the modulation signal swings to the positive side.

  • Page 101: Sweep Setting And Manipulation

    4.8 Sweep Setting and Manipulation Sweep Setting and Manipulation 4.8.1 Sweep types The following five types of sweep can be done. • Frequency sweep  p.99 • Phase sweep  p.101 • Amplitude sweep  p.103 • DC offset sweep  p.105 • Duty sweep  p.107 4.8.2 Screen for sweep setting and manipulation This subsection describes the screen configuration used in common for the sweep oscillation mode.
  • Page 102 4. BASIC OPERATION c) 2nd page of setting screen: Screen for the main sweep settings The figure is an example that shows frequency selection as the sweep type. Sweep start value Indicates that the 2nd page is Sweep stop value displayed. Sweep time Sweep type Sweep marker value Single-shot, gated single- shot sweep trigger Press the NEXT Sweep mode...
  • Page 103 4.8 Sweep Setting and Manipulation d) 3rd page of setting screen: Screen for complementary settings for sweep The figure is an example that shows frequency selection as the sweep type. Stop level of gated singleshot sweep Indicates that the 3rd page is Sweep control with displayed. multi-I/O connector Gated sweep oscillation stop unit Press the NEXT Sync output...

  • Page 104: Common Sweep Settings And Manipulations

    4. BASIC OPERATION 4.8.3 Common sweep settings and manipulations This subsection describes the settings and manipulations that are used in common regardless of the item to be swept. a) To set the oscillation mode to sweep → Oscillation mode setting On the Oscillator setting screen, set [Mode] (oscillation mode) to [Sweep]. This changes the mode to the sweep Select [Sweep] in [Mode] and then oscillation mode.
  • Page 105 4.8 Sweep Setting and Manipulation One way sweep Sweep value f) To sweep a triangular wave →Shuttle sweep Set [SwpFctn] (sweep function) on the 2nd page of the setting screen to [Lin-Shuttle] (shuttle). In the case of frequency sweep, it is also possible to set the slope to [Lin-Shuttle] (linear) or [Log- Shuttle] (log).
  • Page 106 4. BASIC OPERATION Since the sweep time is the transition time from the start value to the stop value, when the sweep function is shuttle, the repeat period is twice the length of the sweep time setting, as shown in the following figure.
  • Page 107 4.8 Sweep Setting and Manipulation Single-shot shuttle sweep Trigger Stop value Sweep value Start value Sweep time Sweep time Frequency sweep example j) To output the waveform only during sweep execution → Gated single-shot sweep Set [SwpMode] (sweep mode) on the 2nd page of the setting screen to [Gated] (gated single-shot). This operation combines gated oscillation and sweep, with sweep execution in synchronization with a trigger.
  • Page 108 4. BASIC OPERATION Gated single-shot one-way sweep Trigger Stop value Sweep value Start value Start value Sweep time Frequency sweep example Gated single-shot shuttle sweep Trigger Stop value Sweep value Start value Sweep time Sweep time Frequency sweep example Check In the case of phase sweep, the start phase setting is the oscillation start phase, and the stop phase setting is the oscillation stop phase.
  • Page 109 4.8 Sweep Setting and Manipulation Note that, in the case of the FG420, the MAN TRIG key works for the channel whose display is active. For details on the channel whose display is active,  p.42 . To use only manual trigger manipulation and remote trigger manipulation as the trigger, set the trigger source to [Ext] (external).
  • Page 110 4. BASIC OPERATION p) To output the sweep stop value →[StpState] soft key Press the [StpState] soft key to set the sweep stop value output state. The status of the equipment under test at the sweep stop value can be checked. The [StpState] soft key is always displayed in the sweep mode. If the [StpState] soft key is not displayed, press the [▼2/2] soft key on the right end to switch the soft key sets.
  • Page 111 4.8 Sweep Setting and Manipulation The relationships between the sweep values and the various signals are shown in the following figure. When stop value < start value, the slope of the sweep X drive output is the opposite of that in the figure.
  • Page 112 4. BASIC OPERATION r) To substitute center value to marker value, or substitute marker value to center value When the [Ctr Mkr] soft key on the 2nd page of the setting screen is pressed, the center value is substituted to the marker value. When the [Mkr Ctr] soft key is pressed, the marker value is substituted to the center value.

  • Page 113: Setting Frequency Sweep

    4.8 Sweep Setting and Manipulation 4.8.4 Setting frequency sweep For the manipulation methods that are common with the sweep setting screen, refer to p.87 and p.90 . a) Frequency sweep example The following is an example of continuous, linear shuttle sweep. Shuttle sweep Stop value Sweep value Start value Sweep time...
  • Page 114 4. BASIC OPERATION Set the following items as needed. • Marker frequency [Marker] (2nd page of setting screen)  p.96 • Stop level [StpLvl] (3rd page of setting screen)  p.93 This setting can be used only for gated single-shot sweep. •...

  • Page 115: Setting Phase Sweep

    4.8 Sweep Setting and Manipulation 4.8.5 Setting phase sweep For the manipulation methods that are common with the sweep setting screen, refer to p.87 and p.90 . a) Phase sweep example The following is an example of continuous, linear shuttle sweep. Shuttle sweep Stop value Sweep value Start value Sweep time...
  • Page 116 4. BASIC OPERATION Setting with [Center] (center phase) and [Span] (span phase) instead of the start phase and stop phase is also possible.  p.90 When the sweep mode is single-shot or gated single-shot, [Trig] (trigger condition) must be set. ...

  • Page 117: Setting Amplitude Sweep

    4.8 Sweep Setting and Manipulation 4.8.6 Setting amplitude sweep For the manipulation methods that are common with the sweep setting screen, refer to p.87 and p.90 . a) Amplitude sweep example The following is an example of continuous, linear shuttle sweep. Shuttle sweep Stop value Sweep value Start value Sweep time...
  • Page 118 4. BASIC OPERATION Set the following items as needed. • Marker amplitude [Marker] (2nd page of setting screen)  p.96 • Stop level [StpLvl] (3rd page of setting screen)  p.93 This setting can be used only for gated single-shot sweep. •...

  • Page 119: Setting Dc Offset Sweep

    4.8 Sweep Setting and Manipulation 4.8.7 Setting DC offset sweep For the manipulation methods that are common with the sweep setting screen, refer to p.87 and p.90 . a) DC offset sweep example The following is an example of continuous, linear shuttle sweep. Shuttle sweep Stop value Sweep value Start value Sweep time...
  • Page 120 4. BASIC OPERATION Set the following items as needed. • Marker DC offset [Marker] (2nd page of setting screen) ..  p.96 • Stop level [StpLvl] (3rd page of setting screen) .  p.93 This setting can be used only for gated single-shot sweep. •...

  • Page 121: Setting Duty Sweep

    4.8 Sweep Setting and Manipulation 4.8.8 Setting duty sweep For the manipulation methods that are common with the sweep setting screen, refer to p.87 and p.90 . a) Duty sweep example The following is an example of continuous, linear shuttle sweep. Shuttle sweep ストップ値 スイープ値 スタート値...
  • Page 122 4. BASIC OPERATION Set the following items as needed. • Marker duty [Marker] (2nd page of setting screen)  p.96 • Stop level [StpLvl] (3rd page of setting screen)  p.93 This setting can be used only for gated single-shot sweep. •...

  • Page 123: Burst Setting And Manipulation

    4.9 Burst Setting and Manipulation 4.9 Burst Setting and Manipulation 4.9.1 Burst oscillation types The following four types of burst oscillation can be done. • Auto burst Oscillation and stop are automatically repeated with the respectively specified wave number. No trigger signal is required.  p.110 •...

  • Page 124: Auto Burst

    4. BASIC OPERATION 4.9.2 Auto burst Oscillation and stop are automatically repeated with the respectively specified wave number. No trigger signal is required. Settings and manipulations are done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the Oscillator setting screen. When another screen is displayed, pressing the MENU MENU key displays the top menu, so select [Oscillator] and then press the...
  • Page 125 4.9 Burst Setting and Manipulation c) Auto burst setting screen 1st page: Screen for the basic parameters These are the common setting items that are common to all the oscillation modes. Indicates that the 1st page is Set the oscillation displayed. mode to [Burst]. Press the NEXT key to display the Oscillation start/stop 2nd page.
  • Page 126 4. BASIC OPERATION f) To start auto burst → Automatically starts When, in the auto burst mode, the mode is set to the burst oscillation mode, burst starts automatically. However, if the burst setting is improper, burst oscillation will not start. ([Conflict!] is displayed in the top right part of the screen.) When the [?] soft key appearing at the left end is pressed, a message about the inappropriate setting is displayed.

  • Page 127: Trigger Burst

    4.9 Burst Setting and Manipulation 4.9.3 Trigger burst Oscillation with the specified wave number is done each time a trigger is received. Settings and manipulations are done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the oscillator setting screen. When another screen is displayed, pressing the MENU MENU key displays the top menu, so select [Oscillator] and then press the...
  • Page 128 4. BASIC OPERATION c) Trigger burst setting screen 1st page: Screen for the basic parameters These are the common setting items that are common to all the oscillation modes. Indicates that the 1st page is displayed. Set the oscillation mode to [Burst]. Press the NEXT key to display the Oscillation start/stop 2nd page.
  • Page 129 MAN TRIG MAN TRIG key can be used for manual trigger manipulation. Note that, in the case of the FG420, the MAN TRIG key works for the channel whose display is active. For details on the channel whose display is active,  p.42 .
  • Page 130 4. BASIC OPERATION When [BrstSync] is selected A TTL level signal synchronized with the burst oscillation is output from the sync/sub-output terminal. As shown in the following figure, this signal is low during oscillation and high during oscillation stop. When the signal during burst is observed with an oscilloscope, it can be used as the trigger signal for the oscilloscope.

  • Page 131: Gate Oscillation

    4.9 Burst Setting and Manipulation 4.9.4 Gate oscillation Oscillation is done in integer cycles or half cycles while the gate is on. The settings and manipulations are done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the Oscillator setting screen. When another screen is displayed, pressing the MENU key displays the top menu, so select [Oscillator] and then press the MENU...
  • Page 132 4. BASIC OPERATION c) Gate oscillation setting screen 1st page: Screen for the basic parameters These are the common setting items that are common to all the oscillation modes. Indicates that the 1st page is displayed. Set the oscillation mode to [Burst]. Press the NEXT key to display the Oscillation start/stop 2nd page. phase setting.
  • Page 133 MAN TRIG key can be used for manual trigger manipulation. The gate signal is on while the MAN TRIG key is pressed. However, in the case of the FG420, the MAN TRIG key works for the channel whose display is active.
  • Page 134 4. BASIC OPERATION When [BrstSync] is selected A TTL level signal synchronized with the gate oscillation is output from the sync/sub-output terminal. As shown in the following figure, this signal is low during oscillation and high during oscillation stop. Note that this differs from the gate signal. When the signal during burst is observed with an oscilloscope, it can be used as the trigger signal for the oscilloscope.
  • Page 135 4.9 Burst Setting and Manipulation k) Noise gate oscillation Noise having no cycle, the gate-on period is the oscillation period, and the gate-off period is the oscillation stop period. Further, since noise has no phase, the stop level setting is always enabled. The next figure is an example of noise gate oscillation when the stop level is 0%.

  • Page 136: Triggered Gate Oscillation

    4. BASIC OPERATION 4.9.5 Triggered gate oscillation Triggered gate oscillation is gate oscillation that switches the gate on/off each time a trigger is received. The settings and manipulations are done on the Oscillator setting screen. “Oscillator” is displayed at the top left of the Oscillator setting screen. When another screen is displayed, press the MENU key to display the top menu, then select [Oscillator] and press the MENU...
  • Page 137 4.9 Burst Setting and Manipulation c) Triggered gate oscillation setting screen 1st page: Screen for the basic parameters These are the common setting items that are common to all the oscillation modes. Indicates that the 1st page is displayed. Set the oscillation mode to [Burst]. Press the NEXT key to display the Oscillation start/stop 2nd page.
  • Page 138 MAN TRIG MAN TRIG key can be used for manual trigger manipulation. However, in the case of the FG420, the MAN TRIG key works for the channel whose display is active. For details on the channel whose display is active,  p.42 .
  • Page 139 4.9 Burst Setting and Manipulation Trigger signal Internal gate signal Gate off Gate on Gate off Gate on Oscillation Stop Oscillation Stop Burst sync signal Output signal i) To execute oscillation in half-cycle units: Set oscillation stop unit to half cycle To stop oscillation in half-cycle units, set [OscStop] (oscillation stop unit) on the 2nd page of the setting screen to [HalfCycle] (half cycle).

  • Page 140: Saving And Recalling Settings

    SAVING AND RECALLING SETTINGS 5.1 Saving Settings The current setting conditions can be saved to the setting memory and then recalled for use. The setting saving operation is done on the Store Memory screen. The settings when the power supply is cut off/restored are saved to setting memory No. 1.  p. 28 a) Setting saving procedure Press the MENU key to open...
  • Page 141 5.1 Saving Settings b) Restoring the saved contents to the initial settings Similarly to the saving operation, after Press the [Clear] setting the setting memory number, soft key to open the dialog box for press the [Clear] soft key. This opens checking the t h e d i a l o g b o x f o r c h e c k i n g t h e initialization operation.

  • Page 142: Recalling Settings

    5. SAVING AND RECALLING SETTINGS 5.2 Recalling Settings The setting conditions saved to the setting memory can be recalled for use. The setting recall operation is done on the Recall Memory screen. At shipping, the same contents as the initial settings are saved to all the setting memories. a) Setting recall procedure Press the MENU key to display...
  • Page 143 5.2 Recalling Settings b) Changing the setting memory name Similarly to the saving operation, after Press the setting the setting memory number, [Rename] soft key to open the setting press the [Rename] soft key to open memory name the setting memory name input field. input field.

  • Page 144: List Of Initial Settings

    LIST OF INITIAL SETTINGS The following initial settings are restored by executing [Reset] (setting initialization) on the Utility screen. These items are also the targets to be saved in the setting memory (except for the output on/off setting). The arbitrary waveform memory, setting memory, sequence memory, user-defined unit definition, output setting at power-on, panel operation setting, and remote setting are not initialized.
  • Page 145 External trigger input polarity Negative Trigger delay Stop level Off, 0% Oscillation stop unit during gate 1 cycle Sync/sub-output Burst synchronization 2-channel operation (FG420 only) Channel mode Independent Frequency difference 0 Hz Frequency ratio Same-value setting Other Use of user-defined unit...
  • Page 146 6. LIST OF INITIAL SETTINGS The following settings are factory-default settings for items which do not return to their initial values even if initialization is executed once the settings are changed by the user. User-defined unit definition Unit name usr1 to usr6 Calculation formula (h+n)*m Output settings at power-on and power operation settings...

  • Page 147: Specifications

    SPECIFICATIONS The values of items marked with are guaranteed values. All other values are either nominal values or typical (typ.) values, and are not guaranteed. Conditions unless otherwise mentioned are as follows: Continuous oscillation, 50 Ω load, 10 Vp-p/50 Ω amplitude setting, 0 V DC offset setting, auto-range, ±FS waveform amplitude range, external addition off, AC voltage = RMS value measurement.

  • Page 148: Frequency, Phase

    7 SPECIFICATIONS 7.3 Frequency, Phase Frequency setting range Oscillation Continuous, Modulated, Sweep (Gated Single- Sequence Mode Sweep (Continuous, Shot), Burst Single-Shot) Waveform Sine 0.01 μHz to 30 MHz 0.01 μHz to 10 MHz 0.01 μHz to 10 MHz Square 0.01 μHz to 15 MHz 0.01 μHz to 10 MHz 0.01 μHz to 10 MHz Pulse 0.01 μHz to 15 MHz...

  • Page 149: Load Impedance Setting

    7.3 Frequency, Phase Accuracy ±( | 1% of DC offset setting [V] | +5mV+ 0.5% of amplitude setting [Vp-p])/open Condition: Sine wave output of 10 MHz or lower, 20°C to 30°C Outside 20°C to 30°C temperature range,1 mV/°C typ. is added 7.4.3 Load impedance setting Functions Setting and display of the amplitude and DC offset for the output...

  • Page 150: Square Wave

    7 SPECIFICATIONS Harmonic spurious Condition: Amplitude setting 0.5 Vp-p to 2 Vp-p/50 Ω 2 Vp-p to 10 Vp-p/50 Ω 1 MHz or lower - 60 dBc or lower - 60 dBc or lower 1 MHz to 10 MHz - 50 dBc or lower - 43 dBc or lower 10 MHz to 30 MHz - 40 dBc or lower...

  • Page 151: Ramp Wave

    7.5 Signal Characteristics Leading edge time, trailing edge time Setting range 15.0 ns to 58.8 Ms (3 digits or 0.1 ns resolution) Leading edge time and trailing edge time independently settable Minimum setting value Largest of either 0.01% of period or 15 ns Pulse width, leading edge time, trailing edge time limits The pulse width time, leading edge time, trailing edge time, and period are mutually constrained by the following equations.
  • Page 152 7 SPECIFICATIONS b) Transient sine group Waveform Waveform Description and Variable Parameters Name Example On-phase Sine wave with slope into on state controlled Complete-on phase (0.00° to 360.00°) sine On-slope time (0.00% to 50.00% of basic period) －0.5 －1.0 －1.5 Off-phase Sine wave with slope into off state controlled Off-phase (0.00°...
  • Page 153 7.5 Signal Characteristics d) Transient response group Waveform Waveform Description and Variable Parameters Name Example Exponential First order LPF step response waveform rise －0.5 Time constant (0.01% to 100.00% of basic period) －1.0 －1.5 Exponential First order HPF step response waveform fall Time constant (0.01% to 100.00% of basic period) －0.5 －1.0 －1.5...

  • Page 154: Modulated Oscillation Mode

    Input impedance 10 kΩ , unbalanced Input frequency DC to 25 kHz Input connector Front panel (FG410) / rear panel (FG420) BNC receptacle Shared with external addition input, cannot be used simultaneously with adding operation External modulation input (FSK, PSK)

  • Page 155: Modulation Conditions

    7.6 Modulated Oscillation Mode 7.6.2 Modulation conditions Carrier waveform Standard waveform other than noise, pulse wave and DC, and arbitrary waveform Peak deviation setting range 0.00 Hz to less than 15 MHz (8 digits or 0.01 Hz resolution) μ μ FSK Carrier waveform Standard waveform other than noise, pulse wave and DC, and arbitrary waveform...

  • Page 156: Sweep Oscillation Mode

    7 SPECIFICATIONS 7.7 Sweep Oscillation Mode 7.7.1 General Sweep types Frequency, phase, amplitude, DC offset, duty Sweep functions One-way (ramp waveform shape), shuttle (triangular waveform shape) (selectable) Linear, log (frequency sweep only) (selectable) Sweep range setting Start value and stop value specification Center value and span value specification.

  • Page 157: Sweep Conditions

    7.8 Burst Oscillation Mode Sweep external trigger input (used for single-shot sweep and gated single-shot sweep) Polarity Positive, negative, off (selectable) Input connector Use of external trigger input. Input voltage and input impedance follow the external trigger input specifications. 7.7.2 Sweep conditions Frequency sweep Waveform Standard waveform other than noise, pulse wave, and DC, and...

  • Page 158: Triggers

    Minimum pulse width 50 ns Input impedance 10 kΩ (pulled up to +3.3 V), unbalanced Input connector Front panel (FG410) / rear panel (FG420) BNC receptacle Manual trigger Panel key operation Applications Used for single-shot sweep, gated single-shot sweep, trigger burst,...

  • Page 159: Sequence

    7.10 Sequence 7.10 Sequence Number of saved sequences 10 sequences (saved to non-volatile memory) Maximum number of steps Maximum of 255 steps per sequence (not including step of pre- start status) Inter-channel operation In sequence mode, the mode of both channels is the sequence mode.

  • Page 160: Other I/Os

    10 MHz (±0.5% (±50 kHz)) Input waveform Sine wave or square wave (50 ±5% duty) Input connector Rear panel, BNC receptacle Frequency reference output (for synchronizing multiple FG410, FG420 units) Output voltage 1 Vp-p/50 Ω square wave Output impedance 50 Ω , AC coupled...

  • Page 161: 2-Channel Ganged Operation (Fg420 Only)

    7.12 2-channel ganged operation (FG420 only) 7.12 2-channel ganged operation (FG420 only) Channel modes Channel Mode Operation Independent Independent setting 2-phase Holds same frequency. During frequency sweep, internal frequency modulation, and internal FSK, the same frequency is controlled to be held. External frequency modulation and external FSK are not possible.

  • Page 162: Synchronous Operation Of Multiple Units

    7 SPECIFICATIONS 7.13 Synchronous Operation of Multiple Units Connection Connection method 1 Master unit Slave unit Slave unit Slave unit 10MHz 10MHz 10MHz 10MHz REF IN REF IN REF IN REF IN External reference 50 Ω use possible termination T divider T divider resistor Connection method 2 Master unit Slave unit...

  • Page 163: Other Functions

    100 V AC to 230 V AC ±10% (250 V or lower) Power supply frequency range 50 Hz/60 Hz ±2 Hz Power consumption FG410: 50 VA or less FG420: 75 VA or less Overvoltage category Ⅱ * The overvoltage category is a value used to define the transient overvoltage condition and includes the rated impulse withstand voltage.
  • Page 164 Compliant standards: EN 61326-1 Table2 (for use in industrial locations) Influence in the immunity test environment: within ±10% of the range Environmental standards EU RoHS Directive compliant * For conformity to environmental regulations and/or standards other than EU, contact your nearest YOKOGAWA office (PIM113-01Z2). IM FG410-01EN...

  • Page 165: External Dimensions (Fg410)

    7.17 General Characteristics External dimensions (FG410) Unit: mm IM FG410-01EN...

  • Page 166: External Dimensions (Fg420)

    7 SPECIFICATIONS External dimensions (FG420) Unit: mm IM FG410-01EN...

  • Page 167: Rack Mounting Dimensions

    7.17 General Characteristics RACK MOUNTING DIMENSIONS Inch rack mounting dimensions (for 1 unit) Unit: mm IM FG410-01EN...

  • Page 168: Inch Rack Mounting Dimensions (For 2 Units)

    7 SPECIFICATIONS Inch rack mounting dimensions (for 2 units) Unit: mm IM FG410-01EN...

  • Page 169: Millimeter Rack Mounting Dimensions (For 1 Unit)

    7.17 General Characteristics Millimeter rack mounting dimensions (for 1 unit) Unit: mm IM FG410-01EN...

  • Page 170: Millimeter Rack Mounting Dimensions (For 2 Units)

    7 SPECIFICATIONS Millimeter rack mounting dimensions (for 2 units) Unit: mm IM FG410-01EN...
  • Page 171 7.17 General Characteristics IM FG410-01EN...

  • Page 172: Recommended Part Replacement

    Part Name Lifetime LCD backlight Under normal conditions of use, approximately 25,000 hous The following are consumable parts. We recommend replacing them at the following intervals. For part replacement, contact your nearest YOKOGAWA dealer. Part Name Recommended Repalcement interval Cooling fan 3 years...
  • Page 173 IM FG410-01JA...

  • Page 174: Index

    10 MHz REF IN ............17 42 Vpk ..............VI, 22 ENTER key ..............39 external dimensions (FG410) ........151 external dimensions (FG420) ........152 AC+DC limitation ..........53, 54, 55 external frequency reference ........29, 43 accessories check ............5 active channel ...............
  • Page 175 LINE ................8 panel load impedance setting ..........59 front panel of FG410 ..........10 front panel of FG420 ..........12 rear panel of FG410 ..........11 rear panel of FG420 ..........13 MAN TRIG key ........94, 115, 119, 124 panel and case cleaning ..........
  • Page 176 sweep range and time ..........90 sweep type ............... 90 safety check ..............4 sweep types .............. 87 safety precautions ............IV sweep X drive signal ..........96 safety-related symbols ..........VI sync signal ............... 96 saving setting ............. 126 sync signal, marker signal, X drive signal ....
  • Page 177 waste disposal ............... VI waveform amplitude range ........... 56 waveform polarity ............56 waveform polarity and amplitude range setting ... 56 waveform setting ............48 IM FG410-01JA...
  • Page 180 Revisions • April 2014 1st Edition • January 2016 2nd Edition • October 2017 3rd Edition • May 2019 4th Edition • April 2021 5th Edition • December 2021 6th Edition If there are any misplaced or missing pages, we will replace the manual. Contact the sales representative.

This manual is also suitable for:

Fg410Fg400

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