AD9237 datasheet(22/28 Pages) AD

tên linh kiện	AD9237

Giải thích chi tiết về linh kiện	12-Bit, 20 MSPS/40 MSPS/65 MSPS 3 V Low Power A/D Converter

PDF	28 Pages

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nhà sản xuất	AD [Analog Devices]

Trang chủ	http://www.analog.com

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22 / 28 page

AD9237

Rev. 0 | Page 22 of 28

LFCSP EVALUATION BOARD

The typical bench setup used to evaluate the ac performance of

the AD9237 is shown in Figure 47. The AD9237 can be driven

single-ended or differentially through a transformer. Separate

power pins are provided to isolate the DUT from the support

circuitry. Each input configuration can be selected by proper

connection of various jumpers (refer to the schematics).

An alternative differential analog input path using an

AD8351 op amp is included in the layout but is not populated

in production. Designers interested in evaluating the op amp

with the ADC should remove C15, R12, and R3 and populate

the op amp circuit. The passive network between the AD8351

outputs and the AD9237 allows the user to optimize the

frequency response of the op amp for the application.

DATA

CAPTURE

AND

PROCESSING

–

2.5V

–

2.5V

–

REFIN

10MHz

REFOUT

HP8644, 2V p-p

SIGNAL SYNTHESIZER

HP8644, 2V p-p

CLOCK SYNTHESIZER

BAND-PASS

FILTER

ANALOG

ENCODE

AVDD

DRVDD

GND

GND VDL

VAMP

AD9237

EVALUATION BOARD

P12

CLOCK

DIVIDER

Figure 47. LFCSP Evaluation Board Connections

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