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Renesas RC22312A Manual

Renesas RC22312A Manual

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RC22312A/RC32312A
Evaluation Board
The RC22312A/RC32312A Evaluation Board (EVB)
is designed to support users evaluating high
performance synthesizer and jitter attenuator
applications. This document describes the following:
■
Basic hardware and GUI setup using Renesas IC
Toolbox (RICBox™) software
■
Board power-up instructions
■
Instructions to get active output signals using a
provided configuration file
■
Hardware modifications required for different
conditions
Board Contents
■
RC22312A/RC32312A evaluation board
■
EVB manual
■
Configuration software (installable plugin for
RICBox)
■
Configuration example file for four built-in device
settings
■
Board schematic and BOM
R31UH0022EU0100 Rev.1.00
Mar 28, 2023
Features
■
Four differential clock inputs
■
Twelve differential clock outputs
■
On-board EEPROM stores startup-configuration
data
■
XIN terminal can use laboratory signal generator
or OCXO/TCXO/XO components and board
■
Laboratory power supply connectors
■
USB-C power supply
■
Serial port for configuration and register read out
Computer Requirements
■
USB 2.0 or USB 3.0 interface
■
Processor: minimum 1GHz
■
Memory: minimum 512MB; recommended 1GB
■
Available disk space: minimum 600MB (1.5GB 64-
bit); recommended 1GB (2GB 64-bit)

Figure 1. RC32312A Block Diagram

Evaluation Board Manual
© 2023 Renesas Electronics
Page 1

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Summary of Contents for Renesas RC22312A

  • Page 1: Figure 1. Rc32312A Block Diagram

    ■ Twelve differential clock outputs applications. This document describes the following: ■ On-board EEPROM stores startup-configuration ■ Basic hardware and GUI setup using Renesas IC data Toolbox (RICBox™) software ■ XIN terminal can use laboratory signal generator ■ Board power-up instructions or OCXO/TCXO/XO components and board ■...

  • Page 2: Table Of Contents

    RC22312A/RC32312A Evaluation Board Manual Contents Functional Description ..........................4 Operational Characteristics ........................4 Hardware Setup and Configuration ...................... 4 1.2.1. Power and USB-C Connections to Computer Host ..............8 1.2.2. Overdrive the XIN with an External Signal ................9 1.2.3.
  • Page 3 Figure 30. Connect to the Device in RICBox ......................20 Figure 31. Connected Button ..........................20 Figure 32. Program Button ........................... 20 Figure 33. RC22312A/RC32312A Evaluation Board (Top) ................... 21 Figure 34. RC22312A/RC32312A Evaluation Board (Bottom) ................22 Figure 35. Phase Noise 312.5MHz Output Synthesizer Mode ................26 Figure 36.

  • Page 4: Functional Description

    The device on the board accepts any input frequency from 1kHz to 1GHz. The RC22312A/RC32312A consists of a single APLL and DPLL design that allows for two separate frequency domains. The APLL can be used independently of the DPLL to generate synthesized clocks at the outputs that track the frequency of the input at the XIN pin.

  • Page 5: Figure 2. Evaluation Board

    RC22312A/RC32312A Evaluation Board Manual Figure 2. Evaluation Board Refer to Table 1 and Figure 2 for the RC22312A/RC32312A evaluation board pin descriptions and functions. Table 1. RC22312A/RC32312A Evaluation Board Pin Descriptions On-Board Item No. Name Function Connector Label R22312A/RC32312A Evaluation device, 64-VFQFPN.
  • Page 6 C level translators. Connect level translators SDA/SCLK to C Pull-ups and Path Connectors J61, J62, J65, J66 RC22312A/RC32312A pins and pull-up to VDDD33_SERIAL. Voltage Regulators U13, U14, U15 Receive 5V input and supply 1.8/3.3V to EVB power domains. Control FTDI voltage source between USB input and 5V board...
  • Page 7 RC22312A/RC32312A Evaluation Board Manual For proper functionality out of the box, the jumpers on board should be placed to allow the correct voltages at each LDO and domain. The jumpers should be arranged as described in Table 2. Table 2. Default Jumper Configurations...

  • Page 8: Power And Usb-C Connections To Computer Host

    1.2.1. Power and USB-C Connections to Computer Host The EVB is connected to a computer host via the USB3.0 to USB-C cable. It is recommended that the cable is connected to a USB3.0 port. However, a USB2.0 port acceptable due to the RC22312A/RC32312A for I C/SPI communications only.

  • Page 9: Overdrive The Xin With An External Signal

    1.8V. Note: All individual voltage domains run at 1.8V. Only VDDD33_SERIAL and VDDD33_DIA are compatible with 3.3V. Supplying 3.3V to any other domain may cause damage to the RC22312A/RC32312A device. 1.2.2. Overdrive the XIN with an External Signal The RC22312A/RC32312A device can support between 25MHz–80MHz on the XIN (crystal oscillator input) pin.

  • Page 10: On-Board Crystal Mount

    RC22312A/RC32312A Evaluation Board Manual 2. Depopulate C2, C3, R398, and R424 to ensure that excess trace is not used. 3. Populate R4 with 50Ω for input termination (ensure signal is >~1.3V amplitude). 4. Place input clock signal at J2 and ensure that the signal is within specification for the XIN pin.

  • Page 11: On-Board Xo Mount

    RC22312A/RC32312A Evaluation Board Manual 1.2.4. On-board XO Mount There are two options on the evaluation board to allow for an XO to be mounted. Positions U27 and U29 are connected in parallel and should only be used one at a time. For an XO to work properly at U27 and U29, the following must be setup (see Figure 10, Figure 11, Figure 12 and Figure 13): Figure 10.

  • Page 12: Figure 12. Xo Schematic

    RC22312A/RC32312A Evaluation Board Manual 5. R405 and R406 can be populated to adjust the common mode voltage of the XO output. Figure 12. XO Schematic 6. Use jumper on J253 – J256 to pull the XO output enable pin high or low depending on the XO datasheet.

  • Page 13: Clock Inputs

    RC22312A/RC32312A Evaluation Board Manual 1.2.5. Clock Inputs The RC32312A can accept four differential clock inputs to be used as a jitter attenuator source. To enable proper connection, make sure the input termination resistor setup corresponds to the input signal that is connected.

  • Page 14: Clock Outputs

    RC22312A/RC32312A Evaluation Board Manual 1.2.6. Clock Outputs Each of the 12 differential output pairs can be programmed to LVDS, HCSL or CMOS logic type. ■ The HCSL mode supports HCSL by default and can be modified to support other modes by changing the amplitude and enabling/disabling the internal termination.

  • Page 15: Serial Connection

    1.2.8. On-board EEPROM The EVB also supports an external EEPROM IC for loading of an RC22312A/RC32312A configuration programmed into the EEPROM as an option. To load the configurations from EEPROM, the EEPROM load enable bit must be set in device OTP. If the enable bit is not set, the EEPROM load will be skipped.

  • Page 16: Figure 22. Eeprom Schematic

    C controller can cause interference. The FTDI device can be removed from the I C trace path by removing jumpers J61 and J62. This will also disconnect RICBox from communicating with the RC22312A/RC32312A device. Figure 24. FTDI to I C Communication Jumpers R31UH0022EU0100 Rev.1.00...

  • Page 17: Gpio Dip Switch Selectors

    1.2.9. GPIO DIP Switch Selectors The EVB has one DIP switch set (SW1) to support GPIO pins on RC22312A/RC32312A device. GPIOs 0–6 can support a two-level input (low/high). The middle position of the DIP switches leaves the pin open so GPIOs can be controlled with internal pull-up and pull-down resistors.

  • Page 18: Launch The Gui

    RC22312A/RC32312A Evaluation Board Manual 1.3.2. Launch the GUI After successfully installing the Renesas IC Toolbox software, launch the software from the Windows <start> menu at the bottom-left corner of the screen. 1. Click Start > RICBox to open the initial RICBox window.

  • Page 19: Figure 28. Ricbox Wizard Navigation

    RC22312A/RC32312A Evaluation Board Manual 5. Follow the on-screen wizard (see Figure 28) to configure the device for general evaluation starting from “Inputs”, then “DPLL”, and finally ”Outputs”. Figure 28. RICBox Wizard Navigation 6. Click on the Finish button after the settings are decided and to review the control panel page.

  • Page 20: Configure The Evaluation Board

    RC22312A/RC32312A Evaluation Board Manual 1.3.3. Configure the Evaluation Board 1. To establish communication between the EVB and the GUI, click the Not Connected button in the lower right corner, then click Connect. Figure 30. Connect to the Device in RICBox 2.

  • Page 21: Board Design

    RC22312A/RC32312A Evaluation Board Manual 2. Board Design Figure 33. RC22312A/RC32312A Evaluation Board (Top) R31UH0022EU0100 Rev.1.00 Page 21 Mar 28, 2023...

  • Page 22: Figure 34. Rc22312A/Rc32312A Evaluation Board (Bottom)

    RC22312A/RC32312A Evaluation Board Manual Figure 34. RC22312A/RC32312A Evaluation Board (Bottom) R31UH0022EU0100 Rev.1.00 Page 22 Mar 28, 2023...

  • Page 23: Bill Of Materials (Bom)

    RC22312A/RC32312A Evaluation Board Manual Bill of Materials (BOM) Item Reference Part Manufacturer Part Number C1,C7,C10,C13,C18,C19,C24,C27,C33 0.1µF C0603C104K5R C30,C71,C72,C96,C97,C117,C119 0.1µF GCM188R71E104KA57D C38,C41,C46,C49,C50,C53,C54,C57,C58, C61,C62,C65,C75,C78,C79,C82,C83,C86, C87,C90,C100,C103,C104,C107,C112,C114, 0.1µF GCM21BR71H104K C120,C123,C125,C128,C129,C132,C145, C148,C149,C152 10µF GRM21BC71E106KE11L C40,C47,C48,C51,C52,C55,C56,C59,C60, C63,C64,C76,C77,C80,C81,C84,C85,C88, C89,C101,C102,C105,C106,C108,C113, 10µF GRM21BC71E106K C121,C122,C126,C127,C130,C131,C146, C147,C150,C151,C196,C229 C66,C68,C91,C93,C109,C115,C231 10µF GRM188D70J106MA73D C67,C69,C92,C94,C110,C116,C228 0.1µF...
  • Page 24 RC22312A/RC32312A Evaluation Board Manual Item Reference Part Manufacturer Part Number J2,J13,J15,J16,J18,J22,J23,J24,J26,J27,J28, J33,J35,J37,J38,J39,J40,J43,J47,J50,J51, Cinch_142_0701_801 142-0701-801 J54,J58,J59,J60,J67,J70,J73,J75,J77,J79, J80,J83 J45,J46,J61,J62,J65,J66,J117,J118,J253, Headerstrip 1X2 22-28-4023 J254,J255,J256 J71,J120,J124,J243,J244,J245,J246,J247, Headerstrip 1X3 22-28-4033 J248,J259 J74,J119 Headerstrip 2X3 10-89-7062 Headerstrip 1X8 0022284083 J90,J123 Banana Post Red 7006 J92,J94,J96,J97,J98,J99,J101,J103,J104, Headerstrip 2X4...
  • Page 25 RC22312A/RC32312A Evaluation Board Manual Item Reference Part Manufacturer Part Number R384 7.5K TNPU06037K50BZEN00 R389,R390,R391,R392,R393 10.0K RC0603JR-0710KL R423,R424 0.00 ERJ-1GN0R00C SO1,SO2,SO3,SO4,SO5,SO6,SO7,SO8 Standoff 25mm 25506 Slide 3Pos KAT1108E TP1,TP2 0552-1-15-01-11-27-10-0 0552-1-15-01-11-27-10-0 U1,U6,U7,U8,U9,U10,U11,U12 BSS138W BSS138W RC22312A/RC32312A RC22312A/RC32312A IC DIP Socket 8 A 08-LC-TT...

  • Page 26: Typical Performance Graphs

    RC22312A/RC32312A Evaluation Board Manual 3. Typical Performance Graphs Figure 35. Phase Noise 312.5MHz Output Synthesizer Mode Figure 36. Phase Noise 312.5MHz Output Jitter Attenuation Mode R31UH0022EU0100 Rev.1.00 Page 26 Mar 28, 2023...

  • Page 27: Ordering Information

    RC22312A/RC32312A Evaluation Board Manual 4. Ordering Information Part Number Description RC32312A-EVK RC21312A/RC32312A Evaluation Board 5. Revision History Revision Date Description 1.00 Mar 28, 2023 Initial release. R31UH0022EU0100 Rev.1.00 Page 27 Mar 28, 2023...
  • Page 28 Renesas' products are provided only subject to Renesas' Terms and Conditions of Sale or other applicable terms agreed to in writing. No use o any Renesas resources expands or otherwise alters any applicable warranties or warranty disclaimers for these products.

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