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e2v EV8AQ160-EB User Manual

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EV8AQ160-EB Evaluation Board
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User Guide

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Summary of Contents for e2v EV8AQ160-EB

  • Page 1 EV8AQ160-EB Evaluation Board ....................User Guide...

  • Page 3: Table Of Contents

    Input Impedance ..................4-39 Section 5 Analog Input....................5-43 ....................Clock Input5-44 RESET input ...................5-44 Output Data.....................5-45 CMIRefAB and CMIRefCD Output Signals ..........5-45 Diode for Junction Temperature Monitoring..........5-45 Test Bench Description ................5-46 Section 6 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 4 Ordering Information ................6-47 Section 7 EV8AQ160-EB Electrical Schematics .............7-49 EV8AQ160-EB Board Layers..............7-53 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2008...

  • Page 5: Scope

    2.54 mm pitch connectors compatible with high-speed acquisition system probes. Thanks to its user-friendly interface, the EV8AQ160-EB Kit enables to test all the func- tions of the EV8AQ160 Quad 8-bit 1.25 Gsps ADC using the SPI connected to a PC.
  • Page 6 Introduction The board dimensions are 170 mm x 185 mm. The board comes fully assembled and tested, with the EV8AQ160 installed. Figure 1-1. EV8AQ160-EB Evaluation Board Simplified Schematic CALN CAL DiodC CLKN CLK SYNCP SYNCN Res62 RS232 3.3V GND DiodA...

  • Page 7: Board Structure

    Power planes = reference plane (identical to layer 3) FR4 HTG/dielectric layer Layer thickness = 200 µm Copper thickness = 40 µm (with NiAu finish) Layer 6 AC signals traces = 50Ω microstrip lines DC signals traces Copper layer EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2008...

  • Page 8: Analog Inputs/Clock Input

    50Ω lines matched to ±2.5 mm (in length) between signal of the same differential pair ±1mm line length difference between signals of two differential pairs 635 µm pitch between the differential traces 650 µm between two differential pairs 310 µm line width 40 µm thickness EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 9: Reset Inputs

    200Ω resistors. A variable resistor of 500Ω is implemented on SYNC: by adjusting this resistor value one can activate and deactivate easily the reset signal. EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 10 The resistors are used only for pull-up and pull-down of the SYNC signals. A push but- ton is provided for the RSTN reset, as described in Figure 2-7 on page 2-9. This reset can also be generated through the AVR (via the User Interface). EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 11: Power Supplies

    Each power supply is decoupled as close as possible to the EV8AQ160 device by 10 nF in parallel with 100 pF surface mount chip capacitors. Note: The decoupling capacitors are superimposed with the 100 pF capacitor mounted first. EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 12 Hardware Description 2-10 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 13: Introduction

    V = 3.3V, V = 1.8V, V = 1.8V and 3.3V). 8. Turn on the RF clock generator. 9. Turn on the RF signal generator. EV8AQ160-EB - User Guide 3-11 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 14: Electrical Characteristics

    Operating Characteristics 10. Perform an analog reset (SYNC potentiometer) on the device. 11. Launch Quad-8bit.exe software. The EV8AQ160-EB evaluation board is now ready for operation. Electrical Characteristics For more information, please refer to the device datasheet. Table 3-1. Recommended Conditions of Use...
  • Page 15 Full power (DMUX 1:1) Full power (DMUX 1:2) 1, 4 Partial standby (DMUX 1:1) 2.45 Partial standby (DMUX 1:2) Full standby (DMUX 1:1) 0.51 0.59 Full standby (DMUX 1:2) 0.525 0.59 EV8AQ160-EB - User Guide 3-13 0834E–BDC–07/09 e2v semiconductors SAS 2008...
  • Page 16 Operating Characteristics 3-14 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 17: Overview

    1. Install the ADC Quad 8-bit application on your computer by launching the Quad_ADC_8bit_x.x.x.exe installer (please refer to the latest version available). The screen shown in Figure 4-3 is displayed. EV8AQ160-EB - User Guide 4-15 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 18 Software Tools Figure 4-1. Install Window Figure 4-2. QUAD 8-bit 1.25 Gsps Application Setup Wizard Window 4-16 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 19 Software Tools 2. Select Destination Directory Figure 4-3. QUAD 8-bit 1.25 Gsps Select Destination Directory Window 3. Select Components (choose Full installation) Figure 4-4. QUAD 8-bit 1.25 Gsps Select Component Window EV8AQ160-EB - User Guide 4-17 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 20 Software Tools 4. Select Start Menu Folder Figure 4-5. QUAD 8-bit 1.25 Gsps Select Start Menu Window 5. Select Additional Tasks Figure 4-6. QUAD 8-bit 1.25 Gsps Select Additional Task Window 4-18 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 21 Figure 4-7. QUAD 8-bit 1.25 Gsps Ready To Install Window If you agree with the install configuration, press Install button. Figure 4-8. QUAD 8-bit 1.25 Gsps Application Setup Install Push Button The installation of the software is now complete. EV8AQ160-EB - User Guide 4-19 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 22 Figure 4-9. QUAD 8-bit 1.25 Gsps Completing Setup Wizard Window After the installation, you can launch the interface with the following file: C:\Program Files\e2v\QUAD_8bit\Quad ADC 8bit.exe The window shown in Figure 4-10 will be displayed. 4-20 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 23 Figure 4-11. QUAD 8-bit 1.25 Gsps User Interface Window Switch ON power supplies and launch the Quad ADC 8bit.exe, the application should become available and the LED turns to green. EV8AQ160-EB - User Guide 4-21 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 24: Troubleshooting

    1. Use an RS-232 port to send data to the ADC. 2. Connect the crossed DB9 (F/F) cable between your PC and your evaluation board as illustrated in Figure 4-14. Figure 4-14. Crossed Cable DB 9 DB 9 Female Female 4-22 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 25: Installation Software

    If a board is successfully detected on the new port, the LED is green and the new port gets the check mark. If the application is not able to find a board on this port, an error message is displayed. EV8AQ160-EB - User Guide 4-23 0834E–BDC–07/09...

  • Page 26: Operating Modes

    Clicking the Cancel button will restore last settings sent with Apply button. With Gain/Offset/Phase and INL windows always click on Write then Send buttons to validate any command. Reset button allows reconfiguring ADC to Default Mode. 4-24 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 27: Settings

    In this window, five functions are available: ADC mode: – 4-channel mode = the four ADCs work independently at Fclock/2 sampling rate (where Fclock is the external clock signal frequency). EV8AQ160-EB - User Guide 4-25 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 28 – One-channel mode = the four ADCs are all interleaved, the sampling rate is Fclock x 2 (where Fclock is the external clock signal frequency), the analog input can be applied to either A, B, C or D channel. 4-26 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 29 Figure 4-18. One channel Mode Simultaneous sampling = all four ADCs work in 4-channel mode but with one same ana- log input signal which is selected as A, B, C or D EV8AQ160-EB - User Guide 4-27 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 30 – Output mode = Gray coding or binary coding – Bandwidth selection = min, reduced, nominal, full band at -3 dB – Full scale mode = either 500 mVpp or 625 mVpp 4-28 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 31: Test

    – Either a ramp is generated within each ADC and output – Or a flashing bit at 1 is output on each ADC (1 FF pattern every ten 00 patterns) EV8AQ160-EB - User Guide 4-29 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 32: Gain/Offset/Phase

    – Once all adjustments are made via the Write buttons, then you can Send the orders to the ADC SPI via the Send button. – The calibration is successful if the internal gain/offset/phase boxes display the entered values. 4-30 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 33 In the following example, channel A is selected. Values for the gain, the offset and the phase have been entered via the Write and then the Send buttons, which explains why the Internal values are equal to the settings values. EV8AQ160-EB - User Guide 4-31 0834E–BDC–07/09...
  • Page 34 -15 ps. In the second picture, the Write and Send buttons have been pushed and the internal register shows the new entered value for the phase. 4-32 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 35: Inl

    – Check that the channel is ON and READY (green LEDs) – Write the INL values in the Ext INL1 and Ext INL2 boxes – If you need to retrieve the old value of INL click Cancel EV8AQ160-EB - User Guide 4-33 0834E–BDC–07/09...

  • Page 36: Inl Calibration Procedure

    The effect will be then to decrease the INL by 0.6 LSB (the effect of rows three and four are added). The procedure is similar when the INL has to be increased (rows two and three). 4-34 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 37 Please note that the INL correction value varies as the temperature increase. 0.15 LSB is the typical correction for T = 50°C. This value can vary from 0.1 LSB to 0.2 LSB from low to high temperature. 4.7.1.1 INL calibration EV8AQ160-EB - User Guide 4-35 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 38 Software Tools Select file ADC_QUAD_INL.txt This file is the INL measurement of on ADC before calibration File txt format with 256 INL code. 4-36 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 39 Software Tools Example ADC_QUAD_INL.txt After loading file, the software compute automatically the INL register Note: Do not forget to push Write and Send button. EV8AQ160-EB - User Guide 4-37 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 40 Software Tools 4-38 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 41: Input Impedance

    Cancel button) This function helps to readjust the input impedance in case of a slight mismatch due to temperature variations or process variations. EV8AQ160-EB - User Guide 4-39 0834E–BDC–07/09...
  • Page 42 Configuration It is possible to save the configuration of EV8AQ160 into a .txt file: Select the File menu and click to Save Configuration. Example of configuration file: 4-40 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 43 Select the File menu and click to Load Configuration chose the xx.txt file. It is possible to save the Data-log of the EV8AQ160 configuration into a .txt file. Select the File menu and click to Datalog. Example of Datalog file: EV8AQ160-EB - User Guide 4-41 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 44 Software Tools 4-42 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 45: Analog Input

    4020080 KRYTAR 2 GHz 8GHz Analog/Clock In order to optimize the performance of the ADC, it is also recommended to use a band pass filter on the analog input path. EV8AQ160-EB - User Guide 5-43 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 46: Clock Input5-44

    Pass band filter from LORCH MICROWAVE 9BP8-500/30-S (up to 8 dB attenuation, 70 dB rejection up to 5000 MHz) 500-14512 500 MHz-SC Sprinter Crystal Oscillator from WENZEL Associates For 2.5 GHz external clock source, we suggest: http://www.vectron.com/products/xo/co-287w.htm or Crystek CPLL66-240-2500 5-44 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 47: Reset Input

    Connector 100Ω The data are output in binary format and in double data rate (the output clock frequency is half the data rate and thus half the input clock frequency). EV8AQ160-EB - User Guide 5-45 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 48: Cmirefab And Cmirefcd Output Signals

    Figure 5-5. Die Temperature Monitoring Test Setup Protection Diodes DIODA To DIODA 1 mA Banana Jacks To DIODC DIODC 5-46 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...

  • Page 49: Test Bench Description

    The following baluns could be used: Frequency Connector Part Number Supplier Range Signal Type MACOM 2 MHz 2 GHz Analog/Clock 3A0056 ANAREN 2 GHz 4 GHz Analog/Clock 4020080 KRYTAR 2 GHz 8 GHz Analog/Clock EV8AQ160-EB - User Guide 5-47 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 50 Application Information 5-48 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 51 Table 6-1. Ordering Information Part Number Package Temperature Range Screening Level Comments Commercial C grade EV8AQ160CTPY EBGA 380 RoHS 0°C < T < 70°C Standard EV8AQ160TPY-EB EBGA 380 RoHS Ambient Prototype Evaluation board EV8AQ160-EB - User Guide 6-47 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 52 Ordering Information 6-48 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 53 Section 7 Appendices EV8AQ160-EB Electrical Schematics Figure 7-1. Power Supplies Bypassing EV8AQ160-EB - User Guide 7-49 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 54 Appendices Figure 7-2. Power Supplies Decoupling (J = ± 5% Tolerance) 7-50 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 55 Appendices Figure 7-3. Electrical Schematics (ADC) EV8AQ160-EB - User Guide 7-51 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 56 Appendices Figure 7-4. Electrical Schematics (ADC) 7-52 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 57 Appendices EV8AQ160-EB Board Layers Figure 7-5. Top Layer EV8AQ160-EB - User Guide 7-53 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 58 Appendices Figure 7-6. Bottom Layer 7-54 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 59 Appendices Figure 7-7. Equipped Board (Top) EV8AQ160-EB - User Guide 7-55 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 60 Appendices Figure 7-8. Equipped Board (Bottom) 7-56 EV8AQ160-EB - User Guide 0834E–BDC–07/09 e2v semiconductors SAS 2009...
  • Page 61 Whilst e2v has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of any use thereof and also reserves the right to change the specification of goods without notice. e2v accepts no liability beyond that set out in its stan- dard conditions of sale in respect of infringement of third party patents arising from the use of tubes or other devices in accordance with informa- tion contained herein.
  • Page 62 0834E–BDC–07/09 e2v semiconductors SAS 2007...

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