AD9642 Analog Devices, AD9642 Datasheet - Page 23

• Manufacturer Part Number: AD9642
• Description: 14-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9642

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 250MSPS
• Interface: LVDS
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: 1.75 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

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
ADCs via SPI.
Table 12. 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
AN-877 Application
DON’T
DON’T
CARE
CARE
t
S
R/W
t
DS
W1
Note, Interfacing to High Speed
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 synchronization features
t
HIGH
A11
t
LOW
Figure 58. Serial Port Interface Timing Diagram
A10
A9
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t
CLK
A8
A7
D5
D4
D3
D2
D1
D0
t
H
AD9642
DON’T
CARE
DON’T
CARE