Analog Devices AD7273, Manual

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EVAL-AD7273/AD7274
Rev. 0 | Page 5 of 16
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 32
1
8
8
16
16
24
24 32
A
B
C
06220-
002
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 5 V Supply. These lines are connected to
the AV
DD
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.
Table 4. 96-Way Connector Pin Functions
1
Pin ROW A ROW B ROW C
1
2
3
4 DGND DGND DGND
5 DR0
6 TFS0 RFS0
7 SCLK0 SCLK0
8
9
10
11
12 DGND DGND DGND
13
14
15
16 DGND DGND DGND
17
18
19
20 DGND DGND DGND
21 AGND AGND AGND
22 AGND AGND AGND
23 AGND AGND AGND
24 AGND AGND AGND
25 AGND AGND AGND
26 AGND AGND AGND
27 AGND
28 AGND
29 AGND AGND AGND
30 −12 V AGND +12 V
31
32 AVDD AVDD AVDD
1
The unused pins of the 96-way connector are not shown.