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Keysight U4200A Series User Manual

Keysight U4200A Series User Manual

Probes and cables
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Summary of Contents for Keysight U4200A Series

  • Page 1 Keysight U4200A-Series Probes and Cables User Guide...

  • Page 2: Warranty

    WITH THESE TERMS, THE WARRANTY set forth specifically in writing elsewhere in TERMS IN THE SEPARATE AGREEMENT WILL the EULA. Keysight shall be under no obliga- CONTROL. tion to update, revise or otherwise modify the Software. With respect to any technical data as defined by FAR 2.101, pursuant to...

  • Page 3: In This Guide

    Some of these U4200A-series probes/cables such as U4207A, U4208A or U4209A are used with a Keysight interposer. For such probes/cables, you can find the general usage information in this guide and interposer-specific usage information in the interposer’s user guide. You can find the user guide for an interposer under the Document Library tab on the interposer’s webpage on...
  • Page 4 Keysight U4200A-Series Probes and Cables User Guide...

  • Page 5: Table Of Contents

    Contents In This Guide 1 Introduction to U4200A Series Probes and Cables U4200A-Series Probing/Cabling Options for Keysight Logic analyzers- At a Glance Number of Probes Required for a Logic Analyzer Maximum State Speed Supported Number of Data and Clock Inputs...
  • Page 6 Retention Module Dimensions Footprint Dimensions Pinout U4207A Probe Mechanical Considerations Probe Dimensions Retention Module Dimensions U4207A Footprint Dimensions U4207A Pinout U4208A Probe/Cable Mechanical Considerations Probe Dimensions Pinout U4209A Probe/Cable Mechanical Considerations Probe Dimensions Pinout Keysight U4200A-Series Probes and Cables User Guide...
  • Page 7 5 Setting up the U4200A-Series Probes and Cables U4201A Setup U4203A Setup Flying Leads to Signal Mapping U4204A Setup U4206A Setup Connecting to DUT using a Retention Module Connecting to Logic Analyzer U4206A Clock Qualifiers Connections Keysight U4200A-Series Probes and Cables User Guide...
  • Page 8 Connecting to a Compatible Interposer using a Retention Module U4207A Clock Qualifiers Connections Connecting to Logic Analyzer U4208A and U4209A Setup 6 Safety Information Safety Symbols Informations relatives à la sécurité Symboles de sécurité: Index Keysight U4200A-Series Probes and Cables User Guide...

  • Page 9: Introduction To U4200A Series Probes And Cables

    User Guide Introduction to U4200A Series Probes and Cables U4200A-Series Probing/Cabling Options for Keysight Logic analyzers- At a Glance / 10 U4201A Logic Analyzer Cable / 13 U4203A Probe, 34 Channel, Flying Lead, Single-ended, 160-pin Direct Connect / 14 U4204A Probe, 34 Channel, Soft Touch Pro, Single-ended, 160-pin Direct Connect / 17...

  • Page 10: U4200A-Series Probing/Cabling Options For Keysight Logic Analyzers- At A Glance

    The series has Direct Connect flying lead, Soft Touch Pro, Mictor probes as well as ZIF probes. These probes and cables are designed to be used with the Keysight logic analyzers that have 160-pin front panel connectors such as 16860-series portable logic analyzers and U4154A/B or U4164A AXIe based logic analyzer modules.

  • Page 11: Number Of Probes Required For A Logic Analyzer

    -4 probes for all 136 channels of a 16854A U4206A U4207A U4208A U4209A Maximum State Speed Supported The following table lists the maximum state speed supported by the combination of a U4200A- series probe and your logic analyzer. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 12: Number Of Data And Clock Inputs

    32 data, 2 clock U4204A 32 data, 2 clock U4205A 32 data, 2 clock U4206A 32 data, 2 clock U4207A 32 data, 2 clock U4208A 32 data, 2 clock U4209A 32 data, 2 clock Keysight U4200A-Series Probes and Cables User Guide...

  • Page 13: U4201A Logic Analyzer Cable

    To connect to a Logic Analyzer pod Figure 1 U420A1 Logic Analyzer Cable Keysight Logic Analyzer probes that are compatible for use with the U4201A cable: • General-Purpose Flying Lead Probe • E5381B 17-ch differential probe for 90 pin LA pod •...

  • Page 14: U4203A Probe, 34 Channel, Flying Lead, Single-Ended, 160-Pin Direct Connect

    The U4203A probe is a 34-channel single-ended flying lead probe set which is compatible with the 160-pin interface on logic analyzers including the Keysight 16850-series portable logic analyzers and U4154A/B logic analysis AXIe-based modules. The U4203A enables you to acquire signals from randomly located points in your target system.

  • Page 15: Characteristics And Specifications

    250mV p-p General Characteristics The following general characteristics apply to the U4203A probe. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 16 0.69 kg “Probe Dimensions" Dimensions Refer to the topic on page 31 Pollution degree 2 Normally only non-conductive pollution occurs. Occasionally, however, a temporary conductivity caused by condensation must be expected. Indoor use Keysight U4200A-Series Probes and Cables User Guide...

  • Page 17: U4204A Probe, 34 Channel, Soft Touch Pro, Single-Ended, 160-Pin Direct Connect

    Minimum Signal Amplitude Vmax – Vmin 200 mV Clock Input differential Number of Inputs 34 (2 clock and 32 data) Environmental Conditions Operating Non-operating Temperature 0 °C to +40 °C -40 °C to +70 °C Keysight U4200A-Series Probes and Cables User Guide...
  • Page 18 Introduction Humidity 50% to 95% relative humidity up to 90% relative humidity at +65 °C (non-condensing) at +40 °C Weight Approximately 0.5018 kg “Probe Dimensions" Dimensions Refer to the topic on page 32. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 19: U4205A Probe, 34 Channel, Mictor, Single-Ended, 160-Pin Direct Connect

    600 Mb/s, with signal amplitudes as small as 300 mV peak- to- peak. The Keysight E5346-68701 or E5346- 68700 probing connector kit is required for connecting the U4205A probe to your target system. The kit contains five mating connectors and five support shrouds.

  • Page 20: Characteristics

    Electrical considerations such as equivalent probe loads, input impedance, and time domain transmission are shown in Chapter 3 of this guide. Other characteristics are dependent on the logic analyzer module you are using with the probe. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 21: U4206A Probe, 34 Channel, Soft Touch Pro, Single-Ended, Quad X 160 Pin Direct Connect

    To know about how to use the U4164A in quad sample state or ¼ channel 10 GHz timing mode, refer to the Keysight logic and protocol analyzer online help / user guide. The help is integrated with the Keysight Logic and Protocol Analyzer GUI and also available on www.keysight.com.

  • Page 22: Characteristics And Specifications

    (300 mV input required for data rates greater than 2.5 Gb/s.) Clock Input differential Number of Inputs 34 (2 clock and 32 data) Environmental Conditions Operating Non-operating Temperature 0 °C to +55 °C -40 °C to +70 °C Keysight U4200A-Series Probes and Cables User Guide...
  • Page 23 Introduction Humidity 50% to 95% relative humidity up to 90% relative humidity at +65 °C (non-condensing) at +40 °C Weight Approximately 0.8495 kg “Probe Dimensions" Dimensions Refer to the topic on page 43. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 24: U4207A Probe, Zero Ohm, 34-Channel, Soft Touch Pro, Single-Ended, Quad X 160-Pin Direct Connect

    The U4207A cable with the W6602A interposer passively monitors the LPDDR4 200-ball DRAM NOTE package. After tuning the Keysight logic analyzer, Command/Address bits can be reliably captured up to 3200 MT/s using this interposer and cable. However, at some data rates, the logic analyzer may not be able to provide an error-free capture of all DQ data bits.

  • Page 25: U4207A Accessories

    E5403A). The single-pin headers (accessory) needed to make the clock qualifier connections for the U4207A probe are supplied with the Keysight BGA interposer with which you want to use the U4207A probe. You should exercise caution when using the sharp alignment and connector pins for U4207A WARNING to avoid personal injury.

  • Page 26: Characteristics And Specifications

    To know how to use the U4164A in quad sample state or ¼ channel 10 GHz timing mode, refer to the Keysight logic and protocol analyzer online help / user guide. The help is integrated with the Keysight Logic and Protocol Analyzer GUI and also available on www.keysight.com.

  • Page 27: U4208A Probe/Cable, 61-Pin Zif, From Left Wing, No Rc, 160-Pin Direct Connect To La

    To know about how to use the U4164A in quad sample state or ¼ channel 10 GHz timing mode, refer to the Keysight logic and protocol analyzer online help \ user guide for specific details on the operation of the of operation. The help is integrated with the Keysight Logic and Protocol Analyzer GUI and also available on www.keysight.com.

  • Page 28: U4209A Probe/Cable, 61-Pin Zif, From Right Wing, No Rc, 160-Pin Direct Connect To La

    To know about how to use the U4164A in quad sample state or ¼ channel 10 GHz timing mode, refer to the Keysight logic and protocol analyzer online help \ user guide for specific details on the operation of the of operation. The help is integrated with the Keysight Logic and Protocol Analyzer GUI and also available on www.keysight.com.

  • Page 29: Mechanical Considerations

    Keysight U4200A-Series Probes and Cables User Guide Mechanical Considerations U4201A Cable Mechanical Considerations / 30 U4203A Probe Mechanical Considerations / 31 U4204A Probe Mechanical Considerations / 32 U4205A Probe Mechanical Considerations / 38 U4206A Probe Mechanical Considerations / 43 U4207A Probe Mechanical Considerations / 47...

  • Page 30: U4201A Cable Mechanical Considerations

    Introduction U4201A Cable Mechanical Considerations Cable Dimensions The following figure shows the dimensions of the U4201A cable. All dimensions are in inches. 1243.4 2.630 Keysight U4200A-Series Probes and Cables User Guide...

  • Page 31: U4203A Probe Mechanical Considerations

    Probe Dimensions The following figure shows the dimensions of the U4203A probe. All dimensions are in inches. See Detail-1 See Detail-2 Top View of U4203A Probe Side View of U4203A Probe Detail-1 Detail-2 Keysight U4200A-Series Probes and Cables User Guide...

  • Page 32: U4204A Probe Mechanical Considerations

    Detail 1 Retention Module Dimensions The U4204A probe is compatible with the Keysight E5405-68702 retention module that accompanies the probe shipment as a kit of 5 retention modules (part number of kit is E5403A). Use the dimensions given in this topic to lay out your PC board pads and holes for use with the U4204A soft touch probe.
  • Page 33 X.XXXX = +-0.0005 Angular X = +-1 X.X = +-0.5 X.XX = +-0.25 X.XXX = +-0.125 4.01 mm 0.158 in. Figure 12 E5405-68702 retention module dimensions Figure 13 E5405-68702 retention module side-by-side dimensions Keysight U4200A-Series Probes and Cables User Guide...

  • Page 34: Footprint Dimensions

    3 Surface finishes on pads should be HASL immersion silver, or gold over nickel. 4 This footprint is compatible with the Keysight retention module (part number E5405-68702). The modules are available as a kit of five modules with part number E5403A.

  • Page 35: Pinout

    Introduction Pinout The following footprint provides pin out and pad numbers for the U4204A probe. Figure 15 Pin out and Pad numbers for U4204A Keysight U4200A-Series Probes and Cables User Guide...
  • Page 36 Clock 1+ Clock Ground → → Clock 1- Clock → Ground → Ground → → → Ground → Ground → → Whichever logic analyzer pod is connected to “Even” on the U4204A probe Keysight U4200A-Series Probes and Cables User Guide...
  • Page 37 “Even” on the → → U4204A probe → Ground → Ground → → Clock 2- Clock → Ground Clock 2+ Clock → Ground → → → Ground → Ground → → → Ground Keysight U4200A-Series Probes and Cables User Guide...

  • Page 38: U4205A Probe Mechanical Considerations

    MICTOR Connector Dimensions This U4205A probe requires a probe kit that contains MICTOR connectors and shrouds. Refer to page 19 for the kit part numbers. The dimensions of the MICTOR connector are as follows: Keysight U4200A-Series Probes and Cables User Guide...

  • Page 39: Support Shroud Dimensions

    Support shrouds are not required but are recommended if pulling forces may be applied to the cables that could cause the connector to be dislodged. Refer to page 19 for the kit part numbers. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 40: Footprint Dimensions

    Support shroud dimensions for the U4205A’s MICTOR 38-pin connector Footprint Dimensions Use the following 38- pin MICTOR connector footprint and support shroud mounting hole dimensions to design your target system board when using the U4205A probe. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 41: U4205A Probe Pinout Table

    38-pin MICTOR connector footprint and support shroud mounting hole dimensions U4205A Probe Pinout Table The following table lists the mapping between the signals, Mictor connector pin numbers and the Logic Analyzer pod and channels for the U4205A probe. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 42 NOTE for analysis probes. +5 V dc 1 Ground 3 Do not connect the following pins. They are used by the Keysight logic analyzer with an emulator or analysis probe to program or read target information. SCL 2 SDA 4...

  • Page 43: U4206A Probe Mechanical Considerations

    Top View of U4206A Retention Module Dimensions The U4206A probe is compatible with the Keysight E5405-68702 retention module that accompanies the probe shipment as a kit of 5 retention modules (part number of kit is E5403A). Use the dimensions given in this topic to lay out your PC board pads and holes for use with the U4206A soft touch probe.
  • Page 44 X.XXXX = +-0.0005 Angular X = +-1 X.X = +-0.5 X.XX = +-0.25 X.XXX = +-0.125 4.01 mm 0.158 in. Figure 20 E5405-68702 retention module dimensions Figure 21 E5405-68702 retention module side-by-side dimensions Keysight U4200A-Series Probes and Cables User Guide...

  • Page 45: Footprint Dimensions

    3 Surface finishes on pads should be HASL immersion silver, or gold over nickel. 4 This footprint is compatible with the Keysight retention module (part number E5405-68702). The modules are available as a kit of five modules with part number E5403A.

  • Page 46: Pinout

    The following footprint provides pin out and pad numbers for the U4206A probe for use with the U4164A logic analyzers. Pod 1 Pod 3 Pod 5 Pod 7 CK 1+ CK 1- CK 2- CK 2+ Figure 23 Pin out and Pad numbers for U4206A Keysight U4200A-Series Probes and Cables User Guide...

  • Page 47: U4207A Probe Mechanical Considerations

    The following figure shows the dimensions of the U4207A probe. All dimensions are in millimeters. Retention Module Dimensions The U4207A probe is compatible with the Keysight E5405-68702 retention module that accompanies the probe shipment as a kit of 5 retention modules (part number of kit is E5403A). Use the dimensions given in this topic to lay out your PC board pads and holes for use with the U4207A soft touch probe.
  • Page 48 X.XXXX = +-0.0005 Angular X = +-1 X.X = +-0.5 X.XX = +-0.25 X.XXX = +-0.125 4.01 mm 0.158 in. Figure 24 E5405-68702 retention module dimensions Figure 25 E5405-68702 retention module side-by-side dimensions Keysight U4200A-Series Probes and Cables User Guide...

  • Page 49: U4207A Footprint Dimensions

    3 Surface finishes on pads should be HASL immersion silver, or gold over nickel. 4 This footprint is compatible with the Keysight retention module (part number E5405-68702). The modules are available as a kit of five modules with part number E5403A.

  • Page 50: U4207A Pinout

    The following footprint provides pinout and pad numbers for the U4207A probe. The color coding used in the figure represents the four U4207A cable pods to which signals are routed. Figure 27 Pinout and Pad numbers for U4207A Keysight U4200A-Series Probes and Cables User Guide...

  • Page 51: U4208A Probe/Cable Mechanical Considerations

    The following figure shows the dimensions of the U4208A probe/cable. All dimensions are in Inches (millimeters). Top View of U4208A Side View of U4208A Pinout The following figure illustrates the 61-pin connector of the U4208A probe followed by the pinout table for this probe. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 52 In the U4208A pinout table below: • Signals highlighted with dark red are targeted to the U4208A Pod labeled Pod A. • Signals highlighted with blue are targeted to the U4208A Pod labeled Pod B. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 53 D7_p → D8_p → D9_p → D10_p → D11_p → CLK_p → CLK_n → D12_p → D13_p → D14_p → D15_p → D16_p → D17_p → D18_p → D19_p → QUALB_p → QUALB_n Keysight U4200A-Series Probes and Cables User Guide...
  • Page 54 The mapping between the DDR/LPDDR signals and the logic analyzer pod channels is based NOTE on the Keysight interposer with which you are using the U4208A probe. Therefore, to know about the mapping between the signals on U4208A pods and Logic analyzer pods, refer to the specific guide for the interposer.

  • Page 55: U4209A Probe/Cable Mechanical Considerations

    The following figure shows the dimensions of the U4209A probe/cable. All dimensions are in Inches (millimeters). Top View of U4209A Side View of U4209A Pinout The following figure illustrates the 61-pin connector of the U4209A probe followed by the pinout table for this probe. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 56 In the U4209A pinout table below: • Signals highlighted with dark red are targeted to the U4209A Pod labeled Pod A. • Signals highlighted with blue are targeted to the U4209A Pod labeled Pod B. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 57 D16_p → D15_p → D14_p → D13_p → D12_p → CLK_n → CLK_p → D11_p → D10_p → D9_p → D8_p → D7_p → D6_p → D5_p → D4_p → QUALA_n → QUALA_p Keysight U4200A-Series Probes and Cables User Guide...
  • Page 58 The mapping between the DDR/LPDDR signals and the logic analyzer pod channels is based NOTE on the Keysight interposer with which you are using the U4209A probe. Therefore, to know about the mapping between the signals on U4209A pods and Logic analyzer pods, refer to the specific guide for the interposer.

  • Page 59: Electrical Considerations For Operating U4200A-Series Probes

    Keysight U4200A-Series Probes and Cables User Guide Electrical Considerations for Operating U4200A-Series Probes U4203A Probe Electrical Considerations / 60 U4205A Probe Electrical Considerations / 105 U4206A and U4204A Electrical Considerations / 106 This chapter describes the electrical considerations such as equivalent probe loads, input impedance, time domain transmission (TDT), step inputs, and eye opening for operating the U4200A-series probes.

  • Page 60: U4203A Probe Electrical Considerations

    Suggested Configurations and Characteristics Accessory Description Total lumped Maximum Details on input C recommended page # state speed page 61 130 Ω Resistive Signal Pin 1.3 pF 1.5 Gb/s (orange) and Solder-down Ground Lead Keysight U4200A-Series Probes and Cables User Guide...

  • Page 61: 130 Ohm Resistive Signal Pin (Orange) And Solder-Down Ground Lead

    For the ground, the preferred method is to use the solder-down ground lead. Alternatively, for ground you could use the right-angle ground lead and a grabber clip as shown page Keysight U4200A-Series Probes and Cables User Guide...
  • Page 62 The 130 Ω resistive signal pin and solder-down ground leads are identical to the accessories for the Keysight 1156A/57A/58A series oscilloscope probes. They provide similar loading effects and characteristics. The accessories for the 1156A/57A/58A probes are compatible with the E5382B probes allowing you to interchange scope and logic analyzer leads.
  • Page 63 These measurements show how the 130 Ω resistive signal pin (orange) and solder-down ground lead configuration affect the step seen by the receiver for various rise times. Figure 33 TDT measurement schematic Keysight U4200A-Series Probes and Cables User Guide...
  • Page 64 Figure 34 TDT measurement at receiver with and without probe load for 100 ps rise time Figure 35 TDT measurement at receiver with and without probe load for 250 ps rise time Keysight U4200A-Series Probes and Cables User Guide...
  • Page 65 V is the signal at the logic analyzer probe tip measured by double probing with Keysight 54701A probe into Keysight 54750A oscilloscope (total 2.5 GHz BW). Eye Scan is used to measure V , the signal seen by the logic analyzer. The Ω...
  • Page 66 The following graphs demonstrate the logic analyzer's probe response to different rise times. These graphs are included for you to gain insight into the expected performance of the different recommended configurations. Figure 39 Logic analyzer's response to a 100 ps rise time Keysight U4200A-Series Probes and Cables User Guide...
  • Page 67 These measurements are not the true step response of the probes. The true step NOTE response of a probe is the output of the probe while the input is a perfect step. Figure 41 Logic analyzer's response to a 500 ps rise time Keysight U4200A-Series Probes and Cables User Guide...
  • Page 68 The data patterns were generated using a 2 1 pseudo random bit sequence (PRBS). These measurements show the remaining eye opening at the logic analyzer while using the 130 Ω resistive signal pin (orange) and solder-down ground lead configuration. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 69 As demonstrated by the last eye diagram, the 130 Ω resistive signal pin and solder-down ground lead configuration still has a usable eye opening at 1250 Mb/s and minimum signal swing. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 70 Logic analyzer eye opening for a PRBS signal of 1 V p-p, 1000 Mb/s data rate Figure 45 Logic analyzer eye opening for a PRBS signal of 1 V p-p, 1250 Mb/s data rate Keysight U4200A-Series Probes and Cables User Guide...

  • Page 71: Cm Resistive Signal Lead And Solder-Down Ground Lead

    Logic analyzer eye opening for a PRBS signal of 250 mV, 1250 Mb/s data rate 5 cm Resistive Signal Lead and Solder-down Ground Lead This configuration is recommended for accessing components such as IC leads or surface-mount component leads for hands-off probing. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 72 5 cm resistive signal lead. The 5cm resistive signal lead and the solder-down ground leads are identical to the accessories for the Keysight 1156A/57A/58A oscilloscope probes. They provide similar loading effects and characteristics. The accessories for the 1156A/57A/58A oscilloscope probes are compatible with the U4203A probes, allowing you to interchange scope and logic analyzer leads.
  • Page 73 Figure 51 Optimum Damping Resistor Value Versus Signal Lead Length Keysight U4200A-Series Probes and Cables User Guide...
  • Page 74 ≥ 500 ps, negligible for targets with 250 ps rise times, and probably still acceptable for 100 ps rise times. Ultimately, you must determine what is an acceptable amount of distortion of the target signal. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 75 Introduction Figure 53 TDT measurement at receiver with and without probe load for 100 ps rise time Figure 54 TDT measurement at receiver with and without probe load for 250 ps rise time Keysight U4200A-Series Probes and Cables User Guide...
  • Page 76 V is the signal at the logic analyzer probe tip measured by double probing with Keysight 54701A probe into Keysight 54750A oscilloscope (total 2.5 GHz BW). Eye Scan is used to measure V , the signal seen by the logic analyzer. The measurements were made on a mid-bus connection to a 50 Ω...
  • Page 77 The following graphs demonstrate the logic analyzer's probe response to different rise times. These graphs are included for you to gain insight into the expected performance of the different recommended configurations. Figure 58 Logic analyzer's response to a 100 ps rise time Keysight U4200A-Series Probes and Cables User Guide...
  • Page 78 These measurements are not the true step response of the probes. The NOTE true step response of a probe is the output of the probe while the input is a perfect step. Figure 60 Logic analyzer's response to a 500 ps rise time Keysight U4200A-Series Probes and Cables User Guide...
  • Page 79 The data patterns were generated using a 2 1 pseudo random bit sequence (PRBS). These measurements show the remaining eye opening at the logic analyzer while using the 5cm resistive signal lead and solder-down ground lead configuration. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 80 5 cm resistive signal lead causes more roll-off on the transitions. As demonstrated by the last eye diagram, the 5 cm resistive signal lead and solder-down ground lead configuration still has a usable eye opening at 1250Mb/s and minimum signal swing. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 81 Logic analyzer eye opening for a PRBS signal of 1 V p-p, 100 Mb/s data rate Figure 64 Logic analyzer eye opening for a PRBS signal of 1 V p-p, 1250 Mb/s data rate Keysight U4200A-Series Probes and Cables User Guide...

  • Page 82: Flying Lead And Ground Extender

    2.54 mm (0.1 in.) centers as test points where you wish to connect the probe. Alternately, you may substitute soldered-down wires of similar length (up to 1 cm in length) and expect to achieve similar results. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 83 The following schematic shows the circuit model for the input impedance of the probe when using the ground extender clip. This model is a simplified equivalent load of the measured input impedance seen by the target. Figure 68 Equivalent load model Keysight U4200A-Series Probes and Cables User Guide...
  • Page 84 3rd best loading of the four recommended configurations. However, because most of the capacitance of this configuration is undamped, the loading is more noticeable than the previous two configurations. The graphs show Keysight U4200A-Series Probes and Cables User Guide...
  • Page 85 TDT measurement at receiver with and without probe load for 100 ps rise time without probe with probe 500 ps per division Figure 72 TDT measurement at receiver with and without probe load for 250 ps rise time Keysight U4200A-Series Probes and Cables User Guide...
  • Page 86 V is the signal at the logic analyzer probe tip measured by double probing with Keysight 54701A probe into Keysight 54750A oscilloscope (total 2.5 GHz BW). Eye Scan is used to measure V , the signal seen by the logic analyzer. The measurements were made on a mid-bus connection to a 50 Ω...
  • Page 87 Step measurement schematic The following graphs demonstrate the logic analyzer's probe response to different rise times. These graphs are included for you to gain insight into the expected performance of the different recommended accessory configurations. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 88 Logic analyzer's response to a 250 ps rise time These measurements are not the true step response of the probes. The NOTE true step response of a probe is the output of the probe while the input is a perfect step. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 89 The data patterns were generated using a 2 1 pseudo random bit sequence (PRBS). These measurements show the remaining eye opening at the logic analyzer while using the flying lead and ground extender configuration. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 90 As demonstrated by the last eye diagram, the flying lead and ground extender configuration still has no noticeable deterioration at 1500 Mb/s and minimum signal swing. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 91 Logic analyzer eye opening for a PRBS signal of 1 V p-p, 1000 Mb/s data rate 500 ps per division Figure 82 Logic analyzer eye opening for a PRBS signal of 1 V p-p, 1250 Mb/s data rate Keysight U4200A-Series Probes and Cables User Guide...

  • Page 92: Grabber Clip And Right-Angle Ground Lead

    Using the grabber clip for the signal and the right-angle for the ground gives you the greatest flexibility for attaching the probe to component leads, however as you can see from the following information, the signal quality is compromised the most severely by this configuration. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 93 SMD IC grabber and the right-angle ground lead. This model is a simplified equivalent load of the measured input impedance seen by the target. Figure 86 Equivalent load model Keysight U4200A-Series Probes and Cables User Guide...
  • Page 94 The graphs show that the loading effects are noticeable even for targets with 1ns rise times. Ultimately, you must determine what is an acceptable amount of distortion of the target signal. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 95 TDT measurement at receiver with and without probe load for 100 ps rise time without probe with probe 500 ps per division Figure 90 TDT measurement at receiver with and without probe load for 250 ps rise time Keysight U4200A-Series Probes and Cables User Guide...
  • Page 96 V is the signal at the logic analyzer probe tip measured by double probing with Keysight 54701A probe into Keysight 54750A oscilloscope (total 2.5 GHz BW). Eye Scan is used to measure V , the signal seen by the logic analyzer. The measurements were made on a mid-bus connection to a 50 Ω...
  • Page 97 As the following graphs will demonstrate, the use of the undamped grabber clip results in excessive overshoot and ringing at the logic analyzer for targets with < 1 ns rise times. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 98 Logic analyzer's response to a 250 ps rise time These measurements are not the true step response of the probes. The NOTE true step response of a probe is the output of the probe while the input is a perfect step. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 99 The data patterns were generated using a 2 1 pseudo random bit sequence (PRBS). These measurements show the remaining eye opening at the logic analyzer while using the grabber clip and right-angle ground lead configuration. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 100 NOTE the clock being probed has < 1 ns rise times, use an alternative configuration for probing. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 101 Logic analyzer eye opening for a PRBS signal of 1 V p-p, 500 Mb/s data rate, 1 ns rise time 500 ps per division Figure 100 Logic analyzer eye opening for a PRBS signal of 1 V p-p, 500 Mb/s data rate, 500 ps rise time Keysight U4200A-Series Probes and Cables User Guide...

  • Page 102: Connecting To Coaxial Connectors

    Logic analyzer eye opening for a PRBS signal of 250 mV, 600 Mb/s data rate, 1 ns rise time Connecting to Coaxial Connectors You can use the Keysight E9638A to adapt the probe tip to a BNC connector. The adapter and the BNC connector itself will add significant capacitance to the probe load. You can generally assume (though not always) that a BNC connector is intended to form a part of a transmission line terminated in 50 Ω...
  • Page 103 Introduction Figure 103 BNC connector Figure 104 SMA, SMB, SMC, or other coaxial connectors Keysight U4200A-Series Probes and Cables User Guide...

  • Page 104: Combining Grounds

    For convenience in connecting grounds, you can use the ground connector, Keysight part number 16515-27601, to combine four probe tip grounds to connect to one ground point in the system under test.

  • Page 105: U4205A Probe Electrical Considerations

    The U4205A probes have an input impedance which varies with frequency, and depends on which accessories are being used. The following graph shows the input impedance of the probe. Figure 106 Measured versus modeled input impedance Keysight U4200A-Series Probes and Cables User Guide...

  • Page 106: U4206A And U4204A Electrical Considerations

    The following probe load models are based on in-circuit measurements made with a Keysight 8753E 6 GHz network analyzer and a Keysight 54750A TDR/TDT using a 50 Ω test fixture. The following schematic accurately models the probe load out to 6 GHz. The figure on the following page shows the agreement between measured impedance and this model.

  • Page 107: Time Domain Transmission (Tdt)

    U4204A soft touch probes affect an ideal step seen by the receiver for various rise times. Figure 109 TDT measurement schematic for U4204A and U4206A The following plots were made on a Keysight 54750A oscilloscope using TDT. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 108 Figure 110 TDT measurement at receiver with and without probe load for 100 ps rise time without probe with probe 500 ps per division Figure 111 TDT measurement at receiver with and without probe load for 250 ps rise time Keysight U4200A-Series Probes and Cables User Guide...

  • Page 109: Step Inputs

    The measurements were made on a mid-bus connection to a 50Ω transmission line load terminated at the receiver. These measurements show the logic analyzer's response while using the U4204A and U4206A soft touch probes. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 110 50 Ω Figure 114 Step input measurement schematic for U4204A and U4206A probes The following plots were made on a Keysight 54750A oscilloscope and a Keysight 16760A logic analyzer using a Keysight 8133A pulse generator with various rise time converters.
  • Page 111 Introduction EyeScan Scope 500 ps per division Figure 116 Logic analyzer’s response to 250 ps rise time EyeScan Scope 500 ps per division Figure 117 Logic analyzer’s response to 500 ps rise time Keysight U4200A-Series Probes and Cables User Guide...

  • Page 112: Eye Opening

    Figure 119 Eye opening measurement schematic for U4204A and U4206A probes The following plots were made on a Keysight 16760A logic analyzer using a Keysight 8133A pulse generator with a 250 ps rise time converter. The following measurements use Eye Scan to show the margin at 800, 1250, and 1500MT/s.
  • Page 113 Figure 120 Logic analyzer eye opening for a PRBS signal of 500 mV p-p, 800 MT/s data rate 500 ps per division Figure 121 Logic analyzer eye opening for a PRBS signal of 500 mV p-p, 1250 MT/s data rate Keysight U4200A-Series Probes and Cables User Guide...
  • Page 114 Figure 122 Logic analyzer eye opening for a PRBS signal of 500 mV p-p, 1500 MT/s data rate 500 ps per division Figure 123 Logic analyzer eye opening for a PRBS signal of 200 mV p-p, 1500 MT/s data rate Keysight U4200A-Series Probes and Cables User Guide...

  • Page 115: Circuit Board Design Considerations

    Keysight U4200A-Series Probes and Cables User Guide Circuit Board Design Consid- erations Circuit Board Design Considerations for U4204A and U4206A Probes / 116 Circuit Board Design Considerations for U4205A Probe / 117 This chapter provides design considerations when you layout your circuit board for the...

  • Page 116: Circuit Board Design Considerations For U4204A And U4206A Probes

    You may be able to avoid the need to reorder bits in a label by routing signals to appropriate pins on the probe connector. Refer to “Triggering with the Keysight 1675x and 1676x" (Keysight publication number 5988-2994EN) for more details.

  • Page 117: Circuit Board Design Considerations For U4205A Probe

    When you use the U4205A, you adjust the logic threshold in the user interface. The clock input on the U4205A is single- ended. The clock threshold may be adjusted independent of the data. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 118: Signal Access

    You may be able to avoid the need to reorder bits in a label by routing signals to appropriate pins on the probe connector. Refer to “Triggering with the Keysight 16760A" (Keysight publication number 5988- 2994EN) for more details.

  • Page 119: Setting Up The U4200A-Series Probes And Cables

    Keysight U4200A-Series Probes and Cables User Guide Setting up the U4200A-Series Probes and Cables U4201A Setup / 120 U4203A Setup / 121 U4204A Setup / 123 U4206A Setup / 124 U4207A Setup / 129 U4208A and U4209A Setup / 132 This chapter provides information to help you complete the hardware setup of the U4200A-series probes and cables, that is, steps and information needed for the probe’s connectivity to DUT and...

  • Page 120: U4201A Setup

    U4201A cable to find out how to perform the complete setup. You can find the guide for a probe on www.keysight.com by searching for the probe’s model number and then accessing the Document Library tab on the probe’s webpage. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 121: U4203A Setup

    Flying Leads to Signal Mapping The flying leads of the U4203A probe are color coded to help you identify the appropriate flying lead cable to be used for probing a specific signal. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 122 Brown D2_p D3_p Orange D4_p Yellow D5_p Green D6_p Blue D7_p Violet D8_p Black D9_p Brown D10_p D11_p Orange D12_p Yellow D13_p Green D14_p Blue D15_p Violet Clk_p White Clk_n Black with white Keysight U4200A-Series Probes and Cables User Guide...

  • Page 123: U4204A Setup

    Solder the alignment pins to the back side of the board. Insert the U4206A probe into the retention module. Ensure proper keying by aligning the Keysight logo on the probe with the one on the retention module and place the probe end into the retention module.

  • Page 124: U4206A Setup

    Solder the alignment pins to the back side of the board. Insert the U4206A probe into the retention module. Ensure proper keying by aligning the Keysight logo on the probe with the one on the retention module and place the probe end into the retention module.

  • Page 125: U4206A Clock Qualifiers Connections

    For detailed information, refer to the pages indicated for each configuration. Table 11 Suggested Configurations and Characteristics of Clock Qualifier Accessories Keysight U4200A-Series Probes and Cables User Guide...
  • Page 126 For information on the dimensions of the socket adapters and how to “Using multiple use multiple socket adapters, refer to the topic socket adapters" on page 127. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 127 The gray boxes in the following diagram show the dimensions of the socket adapters. Figure 128 Socket adapter clearance You can use multiple adapters side-by-side or in tandem by skipping 1 or more pins as shown in the figures below. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 128 Introduction Mechanical clearance, however, does not allow the adapters to be used back-to-back as shown below. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 129: U4207A Setup

    Figure 129 Solder retention module from the top. Insert the U4207A probe into the retention module. Ensure proper keying by aligning the Keysight logo on the probe with the one on the retention module and place the probe end into the retention module.

  • Page 130: U4207A Clock Qualifiers Connections

    Attach the clock qualifier connection flying leads of U4207A to the soldered single-pin headers. U4207A Flying Leads Orientation A clock qualifier connection flying lead of U4207A has two wires as depicted in the following figure: Keysight U4200A-Series Probes and Cables User Guide...

  • Page 131: Connecting To Logic Analyzer

    U4207A probe cable pods and Logic analyzer pods, refer to the specific user guide for the interposer. You can find the guide for an interposer on www.keysight.com by searching for the interposer’s model number and then accessing the Document Library tab on the interposer’s webpage. Keysight U4200A-Series Probes and Cables User Guide...

  • Page 132: U4208A And U4209A Setup

    Introduction U4208A and U4209A Setup For connection to DUT, these probes require a compatible Keysight interposer in between such as a W6601A, W4643A, or W4641A BGA interposer. The U4208A probe connects to the left wing of these interposers and the U4209A probe connects to the right wing of these interposers.

  • Page 133: Safety Information

    Do Not Modify the Do not install substitute parts or perform any unauthorized modification to the product. Return the Instrument product to Keysight Sales and Service Office for service and repair to ensure that safety features are maintained. In Case of Damage Instruments that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel.

  • Page 134: Safety Symbols

    Earth ground terminal Protective earth ground terminal Frame or chassis ground terminal Terminal is at earth potential Equipotentiality Neutral conductor on permanently installed equipment Line conductor on permanently installed equipment On (mains supply) Keysight U4200A-Series Probes and Cables User Guide...
  • Page 135 Application around and removal from HAZARDOUS LIVE conductors is permitted Caution, hot surface Ionizing radiation CAT I IEC Measurement Category I CAT II Measurement Category II CAT III Measurement Category III CAT IV Measurement Category IV Keysight U4200A-Series Probes and Cables User Guide...

  • Page 136: Informations Relatives À La Sécurité

    N'installez pas de composants de remplacement et n'apportez aucune modification non autorisée à l'appareil. Pour toute opération de maintenance ou de réparation, renvoyez l'appareil à un bureau de l'instrument vente et de service après-vente keysight, afin d'être certain que les fonctions de sécurité seront main- tenues. En cas de Les instruments endommagés ou défectueux doivent être désactivés et protégés contre toute utilisa-...

  • Page 137: Symboles De Sécurité

    Conducteur de phase sur un équipement installé à demeure. Alimentation en marche. Alimentation à l'arrêt. Alimentation en mode veille. Lorsque l'interrupteur est en mode veille, l'unité n'est pas complètement déconnectée de l'alimentation secteur. Keysight U4200A-Series Probes and Cables User Guide...
  • Page 138 Appareil de mesure de catégorie II selon la norme CEI applicable CAT III Appareil de mesure de catégorie III selon la norme CEI applicable CAT IV Appareil de mesure de catégorie IV selon la norme CEI applicable Keysight U4200A-Series Probes and Cables User Guide...
  • Page 139 123, equivalent probe loads transmission line considerations, of probe, 15, 17, 22, 26, 27, U4206A, triggering, operating environment, extender, eye opening, 68, 79, 89, 99, U4203A suggested configurations, pin, pin probing, Keysight U4200A-Series Probes and Cables User Guide...
  • Page 140 Index U4207A clock qualifier connection, U4207A dimensions, U4207A flying leads, U4207A pinout, Using multiple socket adapters, weight, Keysight U4200A-Series Probes and Cables User Guide...
  • Page 141 Keysight U4200A-Series Probes and Cables User Guide...
  • Page 142 This information is subject to change without notice. © Keysight Technologies 2017 Edition 2 August 2017 *U4200-97000* www.keysight.com...

This manual is also suitable for:

U4201aU4203aU4204aU4205aU4206aU4207a ... Show all