AD9656 datasheet(34/44 Pages) AD

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AD9656

Data Sheet

SPI ACCESSIBLE FEATURES

Table 18 provides a brief description of the features that are

accessible via the SPI. These features are described in general in

the AN-877 Application Note, Interfacing to High Speed ADCs

via SPI. The AD9656 part-specific features are described in the

Memory Map Register Descriptions section. Information in

the AD9656 data sheet takes precedence over information in

AN-877 Application Note, where it relates to the AD9656.

Table 18. Features Accessible Using the SPI

Feature Name

Description

Mode

Allows the user to set either power-down mode or standby mode

Clock

Allows the user to access the duty cycle stabilizer via the SPI

Offset

Allows the user to digitally adjust the converter offset

Test Input/Output

Allows the user to set test modes to place known data on the output bits

Output Mode

Allows the user to set up the outputs

VREF

Allows the user to set the reference voltage

Figure 70. Serial Port Interface Timing Diagram

DON’T CARE

SDIO

SCLK

tDH

tCLK

tDS

R/W

A12

A11

A10

tLOW

tHIGH

CSB

Rev. 0 | Page 34 of 44

AD9656 Datasheet(PDF) 34 Page - Analog Devices