EVAL-AD7273 Datasheet, PDF (5/16 Pages) –

EVALUATION BOARD INTERFACING
Interfacing to the evaluation board is via a 96-way connector,
J4. J4 is used to connect the evaluation board to the EVAL-
CONTROL-BRD2 or other system. The pinout for the J4
connector is shown in Figure 2 and its pin designations are
given in Table 3.
1
A
B
C
1
8
16
24
32
8
16
24
32
Figure 2. Pin Configuration for the 96-Way Connector, J4
Table 3. 96-Way Connector Pin Description
Signal
Description
DR0
Data Receive Zero. This input is connected to the
SDATA pin of the AD7273/AD7274
TFS0/RFS0 Transmit/Receive Frame Sync Zero. These two
outputs are connected to the CS pin of the
AD7273/AD7274.
SCK0
Serial Clock Zero. This serial clock is connected to
the SCLK pin of the AD7273/AD7274, with the
option of an inverting buffer.
DGND
Digital Ground. These lines are connected to the
digital ground plane on the evaluation board. It
allows the user to provide the digital supply via the
connector along with the other digital signals.
AGND
Analog Ground. These lines are connected to the
analog ground plane on the evaluation board.
AVDD
Analog +5 V Supply. These lines are connected to
the AVDD supply line on the board.
+12 V
+12 V Supply. This line is connected to the +12 V
supply line on the board via LK6.
−12 V
−12 V Supply. This line is connected to the −12 V
supply line on the board via LK7.
EVAL-AD7273/AD7274
Table 4. 96-Way Connector Pin Functions¹
Pin
ROW A
ROW B
1
2
3
4
DGND
DGND
5
6
TFS0
7
SCLK0
8
9
10
11
12
DGND
DGND
13
14
15
16
DGND
DGND
17
18
19
20
DGND
DGND
21
AGND
AGND
22
AGND
AGND
23
AGND
AGND
24
AGND
AGND
25
AGND
AGND
26
AGND
AGND
27
AGND
28
AGND
29
AGND
AGND
30
−12 V
AGND
31
32
AVDD
AVDD
ROW C
DGND
DR0
RFS0
SCLK0
DGND
DGND
DGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
+12 V
AVDD
1 _{The unused pins of the 96-way connector are not shown.}
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