Analog Devices EVAL-ADAQ8088EBZ User Manual Download

Page: 9 / 12

EVAL-ADAQ8088EBZ

User Guide

UG-1825

Rev. 0 | Page 9 of 12

EVALUATION BOARD SCHEMATICS AND ARTWORK

Figure 7. EVAL-ADAQ8088EBZ Schematic

Figure 8. EVAL-ADAQ8088EBZ Feedback Resistor/Capacitor Placeholders

Figure 9. EVAL-ADAQ8088EBZ Top Copper Layer

A12

VS+

RA21

A13

RA22

VINAP

VINAN

C12

RA11

C13

3 4 5

RA12

VCMA

VCMB

F12

RB21

F13

RB22

A14

VOUTAP

C14

VOUTAN

D14

VOUTBP

F14

VOUTBN

VINBP

VINBN

D12

RB11

D13

RB12

AGND

VCMA

EXVCMA

BLU

AGND2

BLK

69157–102HLF

AGND

I–CHANNEL

SMA–J–P–H–ST–EM1

Q–CHANNEL

B10

B11

B12

B13

B14

C10

D10

DNC

A10

DNC

A11

DNC

C11

DNC

D11

DNC

R14

3 4 5

R13

I_INP

I_INN

3 4 5

R15

R16

Q_INP

Q_INN

3 4 5

61.9Ω

INPUT

COMMON-MODE VOLTAGE (VCM)

POWER SUPPLY

4 3 2

AGND

I–CHANNEL

SMA–J–P–H–ST–EM1

Q–CHANNEL

4 3 2

I_OUTP

I_OUTN

4 3 2

Q_OUTP

Q_OUTN

4 3 2

OUTPUT

AGND

VCMB

EXVCMB

BLU

AGND3

BLK

69157–102HLF

1
2

AGND

VCMB

VS+

RED

AGND1

BLK

69157–102HLF

1
2

10µF

539

R9 DNI

RA21

RA22

1kΩ

0.1µF

R10DNI

DNI

RA11

RA12

1kΩ

0.1µF

R11DNI

RB21

RB22

1kΩ

0.1µF

R12DNI

DNI

RB11

RB12

1kΩ

0.1µF

25399-

025

25399-

026

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Summary of Contents for EVAL-ADAQ8088EBZ

Page 1: ...cs LPF F3056 7P7 2 pieces PC running Windows GENERAL DESCRIPTION The EVAL ADAQ8088EBZ evaluates the ADAQ8088 and requires a 2 7 V to 3 3 V power supply for proper operation The EVAL ADAQ8088EBZ accepts baseband differential in phase quadrature I Q inputs via Subminiature A SMA connectors Jx and drives pipeline analog to digital converters ADCs via SMA output connectors The EVAL ADAQ8088EBZ contain...

Page 2: ...ibration Procedure 4 Magnitude and Frequency Response Measurements Using A Two Port Network Analyzer 5 Measuring the Magnitude and Frequency Response of the I Channel 5 Measuring the Magnitude and Frequency Response of the Q Channel 6 Calibration Procedure 6 Evaluating the ADAQ8088 by Driving the AD9681 ADC 7 Configuring the EVAL ADAQ8088EBZ AD9681 125EBZ and HSC ADC EVALEZ 7 Measurement Results w...

Page 3: ... 1 Jumper Details with Factory Default Settings Link Default Function Comment P1 Not populated VS ADAQ8088 supply P2 Not populated EXVCMA Connect EXVCMA to the common mode output of the ADC I channel This jumper can also be left floating P3 Not populated EXVCMB Connect EXVCMB to the common mode output of the ADC Q channel This jumper can also be left floating Note that the I channel and the Q chan...

Page 4: ... the output phase on Port 3 and Port 4 of the network analyzer CALIBRATION PROCEDURE First ensure that the four port network analyzer is calibrated using either the ECal electronic calibration module or the manual short open and load method When the network analyzer is calibrated using one of these two methods take the following steps to complete the network analyzer through calibration 1 Use an S...

Page 5: ...e network analyzer 4 To measure the frequency response at the I_OUTN output of the EVAL ADAQ8088EBZ take the following steps a Use an SMA cable to connect J5 of the EVAL ADAQ8088EBZ to Port 2 of the network analyzer b Terminate J7 to 50 Ω c Set the network analyzer output Port 1 to a power level of 20 dBm d Observe the frequency response on Port 2 of the network analyzer I_INN as the Active Input ...

Page 6: ...d Observe the frequency response on Port 2 of the network analyzer Q_INN as the Active Input To measure the magnitude and frequency response of the Q channel with the Q_INN input as the active input and using a two port network analyzer see Figure 4 take the following steps 1 Use an SMA cable to connect J3 of the EVAL ADAQ8088EBZ to Port 1 of the network analyzer 2 Leave J4 of the EVAL ADAQ8088EBZ...

Page 7: ...PHP SZ supplied in the AD9681 125EBZ evaluation kit to the AD9681 125EBZ 6 Connect the 12 V 3 3 A switching power supply to the HSC ADC EVALEZ board 7 Connect the HSC ADC EVALEZ to the PC using a USB cable supplied in the HSC ADC EVALEZ evaluation kit 8 On the EVAL ADAQ8088EBZ replace the value of R5 R6 R7 and R8 with 40 Ω each and use a clean signal generator with low phase noise to provide an in...

Page 8: ...e analog input frequency if noncoherent sampling is used Ensure that the SPI configuration file matches the device being evaluated For further details on troubleshooting while evaluating the ADAQ8088 by driving the AD9681 ADC see the AD9681 125EBZ user guide page at https wiki analog com resources eval ad9681 125ebz 25399 006 3V BENCH SUPPLY EVAL ADAQ8088EBZ AD9681 125EBZ HSC ADC EVALEZ LPF DIFFER...

Page 9: ...10 VCC D4 VCC D5 VCC D6 VCC D7 VCC D8 VCC D9 VCC D10 VCC A2 DNC A3 DNC A5 DNC A6 DNC A10 DNC A11 DNC C2 DNC C3 DNC C11 DNC D2 DNC D3 DNC D11 DNC F2 DNC F3 DNC F5 DNC F6 DNC F10 DNC F11 DNC R14 0 2 1 3 4 5 R13 I_INP I_INN R1 J1 J2 2 1 3 4 5 R15 0 R16 1 0 Q_INP Q_INN J4 2 1 3 4 5 J3 R3 0 61 9Ω 61 9Ω R4 R2 61 9Ω 61 9Ω INPUT COMMON MODE VOLTAGE VCM POWER SUPPLY 5 1 4 3 2 AGND AGND AGND AGND I CHANNEL ...

Page 10: ...AL ADAQ8088EBZ Power Plane 25399 027 25399 028 Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Page 11: ...ayer 25399 029 Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com ...

Page 12: ... entity other than ADI Customer their employees affiliates and in house consultants The Evaluation Board is NOT sold to Customer all rights not expressly granted herein including ownership of the Evaluation Board arereservedby ADI CONFIDENTIALITY This Agreement andthe Evaluation Board shall all be consideredtheconfidential and proprietary information of ADI Customer may notdiscloseortransferanypor...

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