AD6649 Analog Devices, AD6649 Datasheet - Page 30

• Manufacturer Part Number: AD6649
• Description: IF Diversity Receiver
• Manufacturer: Analog Devices

AD6649
SPI ACCESSIBLE FEATURES
Table 14 provides a brief description of the general features that
are accessible via the SPI. These features are described in detail
in the
via SPI. The AD6649 part-specific features are described in the
Memory Map Register Description section.
Table 14. Features Accessible Using the SPI
Feature Name
Mode
Clock
Offset
Test I/O
Output Mode
Output Phase
Output Delay
VREF
Digital Processing
SCLK
SDIO
CSB
DON’T CARE
DON’T CARE
AN-877 Application
t
S
R/W
t
DS
W1
Note, Interfacing to High Speed ADCs
W0
t
DH
A12
Description
Allows the user to set either power-down mode or standby mode
Allows the user to access the DCS via the SPI
Allows the user to digitally adjust the converter offset
Allows the user to set test modes to have known data on output bits
Allows the user to set up outputs
Allows the user to set the output clock polarity
Allows the user to vary the DCO delay
Allows the user to set the reference voltage
Allows the user to enable the NCOs, FIR filters, and synchronization features
t
HIGH
A11
t
Figure 46. Serial Port Interface Timing Diagram
LOW
A10
A9
t
Rev. A | Page 30 of 40
CLK
A8
A7
D5
D4
D3
D2
D1
D0
t
H
Data Sheet
DON’T CARE
DON’T CARE