AD9212BCPZRL7-65 Analog Devices, Inc., AD9212BCPZRL7-65 Datasheet - Page 38

• Manufacturer Part Number: AD9212BCPZRL7-65
• Description: Octal, 10-bit, 40/65 Msps Serial Lvds 1.8 V A/d Converter
• Manufacturer: Analog Devices, Inc.

AD9212
ALTERNATIVE ANALOG INPUT DRIVE
CONFIGURATION
The following is a brief description of the alternative analog
input drive configuration using the AD8334 dual VGA. If this
particular drive option is in use, some components may need to
be populated, in which case all the necessary components are
listed in Table 16. For more details on the AD8334 dual VGA,
including how it works and its optional pin settings, consult the
AD8334 data sheet.
To configure the analog input to drive the VGA instead of the
default transformer option, the following components need to
be removed and/or changed.
N
Remove R102, R115, R128, R141, R202, R218, R234, R252,
T101, T102, T103, T104, T201, T202, T203, and T204 in
the default analog input path.
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N
N
N
Currently, L505 to L520 and L605 to L620 are populated with 0 Ω
resistors to allow signal connection. This area allows the user to
design a filter if additional requirements are necessary.
Populate R101, R114, R127, R140, R201, R217, R233, and
R251 with 0 Ω resistors in the analog input path.
Populate R106, R107, R119, R120, R132, R133, R144, R145,
R206, R207, R223, R224, R239, R240, R257, and R258 with
10 kΩ resistors to provide an input common-mode level to
the analog input.
Populate R105, R113, R118, R124, R131, R137, R151, and
R160, R205, R213, R221, R222, R239, R240, R255, and
R256 with 0 Ω resistors in the analog input path.