Datasheet

EVAL-AD7262/AD7264
Rev. 0 | Page 6 of 20
INTERFACING THE EVALUATION BOARD TO THE
EVAL-CED1Z
Interfacing the EVAL-CED1Z board to the evaluation board is
via a 96-way connector, J1. The pinout for the J1 connector is
shown in Figure 2. Table 5 gives a description of the pins on the
96-way connector used to interface between the EVAL-
CED1Z
bo
ard and the EVAL-AD7262/AD7264. Table 4 gives its pin
designations.
A
B
C
1 8 16 24 32
1 8 16 24 32
07606-002
Figure 2. Pin Configuration for the 96-Way Connector, J1
Table 4. 96-Way Connector Pin Functions
1
Pin Row A Row B Row C
1 DTPRI GPIO3 DR1PRI
2 TFS1 RFS1
3 TSCLK1 RSCLK1
4 DGND DGND DGND
5 DT0PRI DR0PRI
6 TFS0 RFS0
7 TSCLK0 RSCLK0
8 V
DRIVE
(+3.3 V) V
DRIVE
(+3.3 V) V
DRIVE
(+3.3 V)
9
10
11 DTOSEC GPIO6
12 DGND DGND DGND
13 DROSEC
14 GPIO5 GPIO7
15 GPIO0 GPIO4
16 DGND DGND DGND
17 GPIO2
18
19 GPIO1
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 (−5 V) (−5 V) (−5 V)
32 AV
DD
(+5 V) AV
DD
(+5 V) AV
DD
(+5 V)
1
The unused pins of the 96-way connector are not shown.
Table 5. 96-Way Connector Pin Description
Signal Description
DRPRI
Data Receive Primary. This input is connected to the
D
OUT
A pin of the AD7262 or AD7264.
DRSEC
Data Receive Secondary. This input is connected to
the D
OUT
B pin of the AD7262 or AD7264.
RSCLK
Receive Clock. This continuous clock is connected to
the SCLK pin of the AD7262 or AD7264 via SL4.
TFS
Transmit Frame Sync. This output is connected to the
CS
pin of the AD7262 or AD7264 via SL5 to frame the
serial data transfer.
RFS
Receive Frame Sync. This input is connected to the
TFS pin on the EVAL-CED1Z board to frame the serial
data read.
AV
DD
Analog +5 V Supply. These lines are connected to the
AV
CC
line on the board via LK5.
V
DRIVE
Digital +3.3 V supply. This is used to provide the V
DRIVE
supply to the board via LK4 for the digital logic.
−5 V
Analog −5 V Supply. This supply is not used on the
EVAL-AD7262/AD7264.
DGND
Digital Ground. These lines are connected to the
digital ground plane on the evaluation board.
AGND
Analog Ground. These lines are connected to the
analog ground plane on the evaluation board.
+12 V
+12 V Supply (V
CC
). This line is connected to the +12 V
supply line on the board via LK14.
−12 V
−12 V Supply (V
SS
). This supply is not used on the
EVAL-AD7262/AD7264.
GPIO 0
General-Purpose Input/Output. This input is connected
to the G0 pin of the AD7262 or AD7264 via LK10.
GPIO1
General-Purpose Input/Output. This input is connected
to the G1 pin of the AD7262 or AD7264 via LK11.
GPIO2
General-Purpose Input Output. This input is connected
to the PD0 pin of the AD7262 or AD7264 via LK7.
GPIO3
General-Purpose Input/Output. This input is connected
to the PD2 pin of the AD7262 or AD7264 via LK9.
GPIO4
General-Purpose Input/Output. This input is connected
to the G3 pin of the AD7262 or AD7264 via LK13.
GPIO5
General-Purpose Input/Output. This input is connected
to the CAL pin of the AD7262 or AD7264 via LK6.
GPIO6
General-Purpose Input/Output. This input is connected
to the PD1 pin of the AD7262 or AD7264 via LK8.
GPIO7
General-Purpose Input/Output. This input is connected
to the G2 pin of the AD7262 or AD7264 via LK12.