AD9873 Datasheet, PDF (33/39 Pages) Analog Devices – Analog Front End Converter for Set-Top Box, Cable Modem

AD9873
EVALUATION BOARD
Hardware
The AD9873-EB is an evaluation board for the AD9873 analog
front end converter. Careful attention to layout and circuit design
allow the user to easily and effectively evaluate the AD9873 in
any application where high-resolution, and high-speed conversion
is required. This board allows the user flexibility to operate the
AD9873 in various configurations. Several jumper or solder bridge
settings are available. The ADC inputs can be differentially
driven by transformers or by an AD8138 when using connector
J8 as the only input. Differential to single-ended transmit output
options include direct transformer coupled or filtered (75 MHz)
and variable gain amplified by the AD8323. Digital transmit
(Tx) inputs are designed to be driven from various word generators
and allow for proper load termination.
Software
The AD9873-EB software provides a graphical user interface
that allows easy programming and read back of AD9873 register
settings. Three programming windows are available. The Direct
register access window allows AD9873 register write and read-
back in decimal, binary or hexadecimal data format. The register
map window provides a very easy, function orientated program-
ming of AD9873 bits and registers. Programming hints appear
when the cursor is moved over an input field. Registers are
updated on every WRITE button click. The advanced register
access window allows programming of register access sequences.
REV. 0
Figure 25. Evaluation Board Software
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