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Evaluation Board User Guide

UG-191

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

Evaluating the AD9286 Analog-to-Digital Converter

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 24

FEATURES

Full featured evaluation board for the AD9286

SPI interface for setup and control

Support LVDS output mode option

External or on-board oscillator options

Balun/transformer or amplifier input drive options

Switching power supply

VisualAnalog™ and SPIController software interfaces

EQUIPMENT NEEDED

Analog signal source and antialiasing filter

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

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

CUI EPS060250UH-PHP-SZ, provided

PC running 32-bit Windows® XP, Window Vista, or Windows 7

USB 2.0 port, recommended (USB 1.1-compatible)

AD9286 evaluation board

HSC-ADC-EVALCZ FPGA-based data capture kit

SOFTWARE NEEDED

VisualAnalog

SPIController

DOCUMENTS NEEDED

AD9286 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 Note, Understanding High Speed ADC

Testing and Evaluation

GENERAL DESCRIPTION

This user guide describes the AD9286 evaluation board,

which provides all of the support circuitry required to operate

the AD9286 in its various modes and configurations. The

application software used to interface with the device is also

described.

The AD9286 data sheet provides additional information and

should be consulted when using the evaluation board. All

documents and software tools are available at the FIFO page.

For additional information or questions, send an email to

highspeed.converters@analog.com.

TYPICAL MEASUREMENT SETUP

09346-001

9286CE01

REV A

AD9286

9286CE01A

HSC-ADC-EVALCZ

Figure 1. AD9286 Evaluation Board and HSC-ADC-EVALCZ Data Capture Board

Summary of content (24 pages)

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Evaluation Board User Guide UG-191 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-191 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Input Signals...................................................................................3 Equipment Needed ........................................................................... 1 Output Signals ...............................................................................3 Software Needed ..........................................
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Evaluation Board User Guide UG-191 EVALUATION BOARD HARDWARE on the PCB before connecting to the low dropout linear regulators (default configuration) that supply the proper bias to each of the various sections on the board. The AD9286 evaluation board provides all of the support circuitry required to operate the AD9286 in its various modes and configurations. Figure 2 shows the typical bench characterization setup used to evaluate the ac performance of the AD9286.
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UG-191 Evaluation Board User Guide Clock Circuitry DEFAULT OPERATION AND JUMPER SELECTION SETTINGS This section explains the default and optional settings or modes allowed on the AD9286 evaluation board. Power Circuitry Connect the switching power supply that is supplied in the evaluation kit between a rated 100 V ac to 240 V ac wall outlet at 47 Hz to 63 Hz and J101.
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Evaluation Board User Guide UG-191 EVALUATION BOARD SOFTWARE QUICK START PROCEDURES This section provides quick start procedures for using the AD9286 evaluation board. Both the default and optional settings are described. CONFIGURING THE BOARD 3. 4. 5. 6. Figure 3. VisualAnalog, New Canvas Window 2. Figure 4. VisualAnalog Default Configuration Message 3.
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Evaluation Board User Guide 09346-006 UG-191 Figure 6. VisualAnalog Main Window Rev.
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Evaluation Board User Guide UG-191 3. Setting Up the SPIController Software After the ADC data capture board setup is complete, set up the SPIController software using the following procedure: Open the SPIController software by selecting Start > SPIController or by double-clicking the SPIController software desktop icon. If prompted for a configuration file, select the appropriate one. If not, check the title bar of the window to determine which configuration is loaded.
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UG-191 5. Evaluation Board User Guide Troubleshooting Tips Click the Run button in the VisualAnalog toolbar (see Figure 11). If the FFT plot appears abnormal, do the following: • 09346-011 • Figure 11. Run Button in VisualAnalog Toolbar, Collapsed Display Adjusting the Amplitude of the Input Signal If the FFT appears normal but the performance is poor, check the following: The next step is to adjust the amplitude of the input signal for each channel as follows: 1.
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VIN C115 10UF C102 10UF C116 10UF C103 10UF C117 1UF C104 1UF C101 10UF R103 100K R102 100K EN GND 2 5 SW 4 FB U101 2.2UH L101 3 EN GND 2 1 VIN 5 SW 4 FB U102 2.2UH L103 ADP2108AUJZ-1.8-R7 3 1 VIN ADP2108AUJZ-3.3-R7 L104 C110 10UF 100NH C105 10UF 100NH L102 SUPPLY REGULATORS 1 2 F101 1.6A Rev.
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AVDD PINS 48 AVDD DNI C215 .1UF AVDD PINS 45 AVDD AVDD PINS 16 AVDD DNI C211 .1UF AVDD PINS 13 AVDD DNI C209 .1UF AVDD PINS 12 AVDD AVDD PINS 8 & 9 AVDD AVDD PIN 6 AVDD C218 .1UF C216 .1UF C214 .1UF C212 .1UF C210 .1UF C208 .1UF C206 .1UF DNI C221 .1UF DRVDD PIN 39 DRVDD DNI C222 .1UF DNI C223 0.1UF DNI DNI U202 ADR512ARTZ-REEL7 C224 0.1UF REF IN CKT 2 TRIM V_N V_P 1 3 R201 2.7K DNI DNI C225 0.
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USB_SDI R301 GND 10K SDIO_DUT DNI R304 SDIO_DUT_1P8 R310 0 100K GND R303 1.1K R302 1.1K 5 GND Y2 3 A2 2 Y1 GND VCC 1 A1 U301 NC7WZ07P6X 4 6 USB_SDO R305 1.1K 3.3V_CLK USB_SCLK USB_CSB Rev. 0 | Page 11 of 24 GND R306 C301 0.1UF 10K 10K R307 GND A1 A2 1 3 SPI_DVDD 5 2 GND VCC 4 6 GND U302 NC7WZ16P6X Y2 Y1 C302 0.1UF Figure 15.
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Figure 16. Analog Input Circuits Rev. 0 | Page 12 of 24 1 1 GND 2 3 4 5 J406 DNI GND 2 3 4 5 J405 1 GND 2 3 4 5 J402 DNI AIN_AMP AIN - GND GND GND R436 61.9 R402 49.9 DNI R437 27.4 CMV_OUT GND GND 0 R450 0 DNI R404 0 200 200 GND 10UF R441 GND C417 200 1 4 2 3 ETC1-1-13 SEC 1 4 DNI PRI 5 T402 T403 ETC1-1-13 9 2 3 12 PAD 5 6 7 8 U401 +VS 1 VOCM FB-OUT 11 +IN -OUT 10 -IN +OUT 4 FB+OUT PD_N PAD -VS 3.
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Figure 17. Default Clock Path Input Circuits 2 3 4 5 1 J502 2 3 4 5 GND DNI R502 49.9 GND R501 49.9 DNI DNI C501 TP501 BLK DNI 0.1UF C502 0.1UF 1 2 3 4 5 1 J503 2 3 4 5 J504 GND R514 49.9 DNI GND R515 49.9 DNI GND 0.1UF C509 DNI R517 0 C511 0.1UF GND 0 SHARE PADS? R516 TP502 BLK DNI C510 0.1UF LAYOUT: SMA'S SHOULD BE 540 MILS CENTER TO CENTER CLK_B - CLK_B + DNI R503 0 R504 0 SHARE PADS? C503 0.
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CHANNEL A D0A_D4M D1A_D4P D2A_D5M D3A_D5P D4A_D6M D5A_D6P D6A_D7M D7A_D7P 0 RN601 8 9 0 RN601 7 10 0 RN601 6 11 0 RN601 5 12 0 RN601 4 13 0 RN601 3 14 0 RN601 2 15 0 RN601 1 16 Figure 18. Output Buffer Circuits Rev.
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Rev.
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UG-191 Evaluation Board User Guide 09346-020 Figure 20. Top Side Rev.
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Evaluation Board User Guide UG-191 09346-021 Figure 21. Ground Plane (Layer 2) Rev.
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UG-191 Evaluation Board User Guide 09346-022 Figure 22. Power Plane (Layer 3) Rev.
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Evaluation Board User Guide UG-191 09346-024 Figure 23. Power Plane (Layer 4) Rev.
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UG-191 Evaluation Board User Guide 09346-025 Figure 24. Ground Plane (Layer 5) Rev.
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Evaluation Board User Guide UG-191 09346-025 Figure 25. Bottom Side Rev.
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UG-191 Evaluation Board User Guide ORDERING INFORMATION BILL OF MATERIALS Table 2.
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Evaluation Board User Guide Qty 22 4 1 1 4 2 4 2 Reference Designator R405, R407, R408, R414, R415, R416, R417, R449, R450, R504, R507, R508, R509, R510, R516, R517, R520, R521, R522, R523, R601, R602 R410, R411, R412, R413 R436 R437 R438, R439, R440, R441 R442, R443 R505, R506, R518, R519 RN601, RN602 1 2 1 T401 T502, T504 U101 1 U102 1 U201 1 1 1 U301 U302 U401 UG-191 Description Film SMD 0402 resistor Value 0Ω Manufacturer/Part No.
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UG-191 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.