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Evaluation Board User Guide

UG-290

One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Te l: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

Evaluating the AD9434 and AD9484 Analog-to-Digital Converters

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 28

FEATURES

Full featured evaluation board for the AD9434 and AD9484

SPI interface for setup and control

External, on-board oscillator or AD9517 clocking options

Balun/transformer or amplifier input drive options

LDO regulator or switching power supply options

VisualAnalog and SPI controller software interfaces

EQUIPMENT NEEDED

Analog signal source and antialiasing filter

Sample clock source (if not using the on-board oscillator)

2 switching power supplies (6.0 V, 2.5 A),

CUI EPS060250UH-PHP-SZ, provided

PC running Windows® 98 (2nd ed.), Windows 2000,

Windows ME, or Windows XP

USB 2.0 port, recommended (USB 1.1 compatible)

AD9434/AD9484 board

HSC-ADC-EVALCZ FPGA-based data capture kit

DOCUMENTS NEEDED

AD9434 or AD9484 data sheet

HSC-ADC-EVALCZ data sheet

AN-905 Application Note, VisualAnalog Converter Evaluation

Tool Version 1.0 User Manual

AN-878 Application Note, High Speed ADC SPI Control Software

AN-877 Application Note, Interfacing to High Speed ADCs via SPI

AN-835 Application, Understanding High Speed ADC Testing and

Evaluation

SOFTWARE NEEDED

VisualAnalog

SPI controller

GENERAL DESCRIPTION

This document describes the AD9434 and AD9484 evaluation

board, which provides all of the support circuitry required to

operate the AD9434 and AD9484 in their various modes and

configurations. The application software used to interface with

the devices is also described.

The AD9434 and AD9484 data sheets provide additional

information and should be consulted when using the evaluation

board. All documents and software tools are available at

www.analog.com/fifo. For additional information or questions,

send an email to highspeed.converters@analog.com.

TYPICAL MEASUREMENT SETUP

09910-001

Figure 1. AD9434 and AD9484 Family Evaluation Board and HSC-ADC-EVALCZ Data Capture Board

Summary of content (28 pages)

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Evaluation Board User Guide UG-290 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.
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UG-290 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Input Signals...................................................................................3 Equipment Needed........................................................................... 1 Output Signals ...............................................................................3 Documents Needed...........................................
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Evaluation Board User Guide UG-290 EVALUATION BOARD HARDWARE The evaluation board provides all of the support circuitry required to operate the AD9434 and AD9484 in their various modes and configurations. Figure 2 shows the typical bench characterization setup used to evaluate the ac performance. It is critical that the signal sources used for the analog input and clock have very low phase noise (<1 ps rms jitter) to realize the optimum performance of the signal chain.
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UG-290 Evaluation Board User Guide WALL OUTLET 100V TO 240V AC 47Hz TO 63Hz SWITCHING POWER SUPPLY SWITCHING POWER SUPPLY 6V DC 2A MAX SIGNAL SYNTHESIZER 6V DC 2A MAX ANALOG INPUT PC RUNNING VISUAL ANALOG USER SOFTWARE 09910-002 SIGNAL SYNTHESIZER ENCODE Figure 2. Evaluation Board Connection 1.5V p-p 0.1µF VCM 33Ω 0Ω 0.1µF 5pF 33Ω 33Ω 0.1µF VIN+ 33Ω AD9434/ AD9484 VIN– 09910-003 0.1µF Figure 3.
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Evaluation Board User Guide AVDD UG-290 1:1 impedance ratio transformer (T201) that adds a low amount of jitter to the clock path. The clock input is 50 Ω terminated and accoupled to handle single-ended sine wave types of inputs. The transformer converts the single-ended input to a differential signal that is clipped by CR200 before entering the ADC clock inputs.
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UG-290 Evaluation Board User Guide EVALUATION BOARD SOFTWARE QUICK START PROCEDURES This section provides quick start procedures for using the AD9434 and AD9484 evaluation board. Both the default and optional settings are described. CONFIGURING THE BOARD 2. 3. 4. 5. 6. 7. Connect the AD9434 evaluation board to the HSC-ADCEVALCZ boards as shown in Figure 1. Connect one 6 V, 2 A switching power supply (such as the CUI EPS060250UH-PHP-SZ supplied) to the AD9434 board.
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UG-290 09910-008 Evaluation Board User Guide Figure 8. VisualAnalog, Main Window 2. Setting Up the SPI Controller Software After the ADC data capture board setup is complete, set up the SPI controller software using the following procedure: Open the SPI controller software by going to the Start menu or by double-clicking the SPIController software desktop icon. If prompted for a configuration file, select the appropriate one.
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UG-290 Evaluation Board User Guide 0 500MSPS 30.3MHz AT –1.0dBFS SNR: 65.0dB ENOB: 10.7 BITS SFDR: 85dBc AMPLITUDE (dBFS) –20 –40 –60 –80 –120 Figure 11. SPI Controller, Customer Tab 4. 0 20 40 60 80 100 120 140 160 180 200 220 240 FREQUENCY (MHz) 09910-014 09910-011 –100 Figure 14. Typical FFT, AD9434 Click the Run button in the VisualAnalog toolbar (see Figure 12). Troubleshooting Tips If the FFT plot appears abnormal, do the following: 09910-012 1. 2. Figure 12.
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Evaluation Board User Guide UG-290 09910-015 EVALUATION BOARD SCHEMATICS AND ARTWORK Figure 15. Analog Input Circuits Rev.
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Evaluation Board User Guide 09910-016 UG-290 Figure 16. Clock Input Circuits Rev.
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UG-290 09910-017 Evaluation Board User Guide Figure 17. Board Power Supply Circuits Rev.
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UG-290 Evaluation Board User Guide AVDD_3P3V P40 0 1 SPI_VDD 2 3 AVDD_DUT SPI_VDD R404 C400 0.1UF 1.1 K A1 3 A2 100K R403 10K SA 1 Y1 6 DUT_SDIO Y2 4 SB 9 7 D 8 SA ADG734BRUZ 10 IN SDO_USB GND R41 4 2 0 U40 0 AVDD_3P3V TP400 AGND AGND TP403 1 FPGA_SDIO NC7WZ07P6X 1 C40 2 R41 5 AGND SDIO_USB 0.
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Evaluation Board User Guide UG-290 09910-019 Figure 19. DUT Interface Circuits Rev.
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UG-290 Evaluation Board User Guide 09910-020 Figure 20. Optional AD9517 Clock Input Circuit Rev.
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UG-290 09910-021 Evaluation Board User Guide Figure 21. Top Side Rev.
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Evaluation Board User Guide 09910-022 UG-290 Figure 22. Top Silkscreen Rev.
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UG-290 09910-023 Evaluation Board User Guide Figure 23. Ground Plane (Layer 2) Rev.
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Evaluation Board User Guide 09910-024 UG-290 Figure 24. Power Plane (Layer 3) Rev.
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UG-290 09910-025 Evaluation Board User Guide Figure 25. Power Plane (Layer 4) Rev.
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Evaluation Board User Guide 09910-026 UG-290 Figure 26. Ground Plane (Layer 5) Rev.
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UG-290 09910-027 Evaluation Board User Guide Figure 27. Bottom Side Rev.
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Evaluation Board User Guide 09910-028 UG-290 Figure 28. Bottom Silkscreen Rev.
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Evaluation Board User Guide UG-290 ORDERING INFORMATION BILL OF MATERIALS Table 2. AD9434/AD9484 BOM Qty Reference Designator Description Value Mfg Mfg_PN 1 N/A PCB board, 9434CE01C 0 0 0 32 C100, C103, C105, C106, C108, C115, C200, C201, C202, C204, C205, C316, C317, C318, C319, C320, C321, C322, C323, C324, C325, C326, C327, C328, C329, C330, C331, C332, C333, C400, C401, C501 CAP CER X7R 0402 0.1 μF Murata GRM155R71C104KA88D 1 C111 CAP High Q microwave chip NP0 0402 4.
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UG-290 Evaluation Board User Guide Qty Reference Designator R202, R203, R204, R207, R208, R211, R213, R214, R215, R509, R510 Description Value Mfg Mfg_PN 4 R108, R109, R110, R111 RES film SMD 0402 33 Panasonic ERJ-2GEJ330X 2 R200, R201 RES film SMD 0402 51 Panasonic ERJ-2GEJ510X 4 R205, R501, R502, R503 RES ultra-prec ultra-reliability MF chip 1K Susumu RG1005P-102-B-T5 1 R212 RES prec thick film chip R0201 100 Panasonic ERJ-1GEF1000C 4 R300, R400, R401, R402 RES prec thick
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Evaluation Board User Guide UG-290 Qty Reference Designator Description Value Mfg Mfg_PN 1 C604 CAP CER chip 1500 pF Panasonic ECJ-0EB1H152K 1 CR600 LED red surface mount SML-LXT0805IW-TR Lumex SML-LXT0805IW-TR 1 J101 CONN-PCB SMA ST edge mount SMA-J-P-X-ST-EM1 Samtec SMA-J-P-X-ST-EM1 1 J600 CONN-PCB coax SMA ST JOHNSON142-0701-201 Johnson 142-0701-201 4 L100, L101, L102, L103 Inductor SM 10 nH Panasonic ELJ-RE10NGF2 2 P100, P601 CONN-PCB Berg HDR ST male 3P SAMTECTS
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UG-290 Evaluation Board User Guide Qty Reference Designator Description Value Mfg Mfg_PN 1 U100 IC-ADI low dist ultra-high-spd diff ADC drvr ADA4960_PRELIM Analog Devices ADA4960_PRELIM 2 U200, U400 IC-ADI CMOS, quad SPDT switches ADG734BRUZ Analog Devices ADG734BRUZ 1 U500 Precision series sub-band gap voltage ref ADR130AUJZ Analog Devices ADR130AUJZ Rev.
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Evaluation Board User Guide UG-290 NOTES Rev.
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UG-290 Evaluation Board User Guide NOTES ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.