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ASTEK A9-CTC2 User Manual

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Astek Corporation reserves the right to make changes to any products herein at any time without
notice. Astek does not assume any responsibility or liability arising out of the application or use of
any product described herein, except as expressly agreed to in writing by Astek; nor does the
purchase or use of a product from Astek convey a license under any patent rights, copyrights,
trademark rights, or any other of the intellectual property rights of Astek or third parties.
Astek products are not intended for use in life-support appliances, devices, or systems. Use of any
Astek product in such applications without written consent of the appropriate Astek officer is
prohibited.
Copyright © 2019 by Astek Corporation. All rights reserved.
TRADEMARK ACKNOWLEDGMENT
The Astek logo design is the trademark or registered trademark of Astek Corporation. All other
brand and product names may be trademarks of their respective companies.
June 24, 2019
A9-CTC2
User Manual

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Summary of Contents for ASTEK A9-CTC2

  • Page 1 Astek Corporation reserves the right to make changes to any products herein at any time without notice. Astek does not assume any responsibility or liability arising out of the application or use of any product described herein, except as expressly agreed to in writing by Astek; nor does the purchase or use of a product from Astek convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual property rights of Astek or third parties.

  • Page 2: Introduction / Overview

    DDR5 Channel Test Card (A9-CTC2) User Manual 1 Introduction / Overview This document outlines the features and use of Astek’s Channel Test Card 2 (CTC2). The CTC2 provides signal access for testing DDR5 DIMMs and component test cards using oscilloscopes, BERTs, and signal generating test equipment.
  • Page 3 DDR5 Channel Test Card (A9-CTC2) User Manual 2X thru reference trace Test Card 1X thru reference Power Module traces DIMM Socket SMP Connectors SAA Settings PWRGD LED I2C/SMBus Headers Install one Power DIMM Card Module here Power Module Power Inputs USB Connection Ver.

  • Page 4: Optional Equipment

    Astek Reset Automation Board Automate reset sequencing of board Astek Controller Board Astek provides a controller board used to configure a DRAM device installed on a test card inserted into the CTC2. Micro USB cable A micro USB cable can be used to connect the CTC2 to a host PC. The USB interface provides a method of configuring a DIMM or test card during characterization testing.
  • Page 5 DDR5 Channel Test Card (A9-CTC2) User Manual 3 Powering the CTC2 The CTC2 is designed to support testing of DIMM cards requiring 3.3V and 12V and component test cards requiring 1.1V and 1.8V. Power for the device under test is controlled by inserting the correct power module onto the CTC2 and applying the appropriate power to the banana jacks.
  • Page 6 DDR5 Channel Test Card (A9-CTC2) User Manual If the USB cable is connected to a PC, the LEDs near 3.3V and 12V will illuminate. Component Test Card testing When testing component test cards, install the power module labeled “FOR USE WITH TEST CARDS ONLY”.
  • Page 7 DDR5 Channel Test Card (A9-CTC2) User Manual 4 Signals Probed The following signals are brought out to SMP Connectors on the CTC2 Name Name Name Name Name Name Name Name ALERT_n CB0_A CK_c DQ0_A DQ10_A DQ21_A DQS0_A_c DQS5_A_c/TDQS5_A_c CA0_A CB0_B...
  • Page 8 DDR5 Channel Test Card (A9-CTC2) User Manual 5 I2C I2C Circuitry Block Diagram of the I2C circuitry on the CTC2 is shown below. Micro USB 3.3V I2C_VCC From Power board J176 SCL_3.3V SCL_DIMM USB-I2C I2C Level Bridge Translator J177 SDA_3.3V...
  • Page 9 DDR5 Channel Test Card (A9-CTC2) User Manual To access the I2C pins directly on the DDR5 DIMM, remove jumpers on J176 and J177 and attach directly to the I2C pins as shown below. When the jumpers are removed, the on-board pullups are also removed from the circuit (see the block diagram above).
  • Page 10 DDR5 Channel Test Card (A9-CTC2) User Manual SAA Circuitry The SAA pin circuitry on the CTC2 provides the option to change the connection point to the DIMM connector (pin 148 or pin 149) and to change the HOSTID provided to the DIMM.
  • Page 11 DDR5 Channel Test Card (A9-CTC2) User Manual R42/R43 location on the backside of the CTC2 board. Ver. June 24, 2019 Copyright © 2019 by Astek Corporation...

  • Page 12: Reset Circuit

    DDR5 Channel Test Card (A9-CTC2) User Manual 6 Reset Circuit A pullup resistor, R35, is available on the CTC2 to pullup Reset to 1.1V. On assembly revisions A through E of the CTC2 board, R35 is unpopulated and it is recommended to populate R35 with a 2.0k resistor.
  • Page 13 DDR5 Channel Test Card (A9-CTC2) User Manual 7 GPIO Four GPIO signals were added to the CTC2 board starting with assembly revision E. Unfortunately, the GPIO signals did not prove to be useful due to the limited number of them (only 4) and that they are open-drain (drive low and pull high) outputs.
  • Page 14 DDR5 Channel Test Card (A9-CTC2) User Manual 8 Calibration Traces There are three types of calibration structures on the CTC2 • 1X THRU (3 structures) • 2X THRU • Open / Short / Load 1X THRU The 1X THRU calibration structures are used when calibrating and configuring a BERT.
  • Page 15 DDR5 Channel Test Card (A9-CTC2) User Manual Open / Short / Load The CTC2 provides an open, short, and load (50-ohm) structure on the board as a traditional calibration method for a VNA. The structures were includes as a back-up calibration method in case the 1X THRU or 2X THRU structures did not work.

  • Page 16: Ordering Information

    DDR5 Channel Test Card (A9-CTC2) User Manual 9 Ordering Information The following part numbers may be ordered from Astek. Contact Astek representative for quoting and availability. Part Number Description A9-CTC2-01 DDR5 CTC2 with high-performance socket installed A9-CTC2-02 DDR5 CTC2 with standard socket installed...
  • Page 17 DDR5 Channel Test Card (A9-CTC2) User Manual 10 How to Contact Astek Corporation Astek Corporation may be contacted by the following methods: PHONE: (719) 260-1625 (USA) FAX: (719) 260-1668 (USA) EMAIL: support@astekcorp.com WEBSITE: www.astekcorp.com Ver. June 24, 2019 Copyright © 2019 by Astek Corporation...