AD9642 Datasheet, PDF (23/28 Pages) Analog Devices – 14-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Analog-to-Digital Converter (ADC)

SPI ACCESSIBLE FEATURES
Table 12 provides a brief description of the general features that
are accessible via the SPI. These features are described in detail
in the AN-877 Application Note, Interfacing to High Speed
ADCs via SPI.
Table 12. 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 DCS via the SPI
Offset
Allows the user to digitally adjust the converter offset
Test I/O
Allows the user to set test modes to have known data on output bits
Output Mode
Allows the user to set up outputs
Output Phase
Allows the user to set the output clock polarity
Output Delay
Allows the user to vary the DCO delay
VREF
Allows the user to set the reference voltage
Digital Processing
Allows the user to enable the synchronization features
AD9642
CSB
t_DS
t_S
t_DH
t_HIGH
t_LOW
t_CLK
SCLK
DON’T
CARE
SDIO
DON’T
CARE
R/W
W1
W0
A12
A11
A10
A9
A8
A7
t_H
DON’T
CARE
D5
D4
D3
D2
D1
D0
DON’T
CARE
Figure 58. Serial Port Interface Timing Diagram
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