Datasheet

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REV O
EVAL-AD9831EB
Table 2. 36-Way Connector Pin Funtions
PIN NO. MNEMONIC
1 LATCH
2D0
3D1
4D2
5D3
6D4
7D5
8D6
9D7
14
RESET
19 DGND
20 DGND
21 DGND
22 DGND
23 DGND
24 DGND
25 DGND
26 DGND
27 DGND
28 DGND
29 DGND
30 DGND
31 LOAD
36
WR
Note: The remainder of the pins on the 36-way connector are no connects.
SOCKETS
There are six sockets relevant to the operation of the AD9831
on this evaluation board. The function of these sockets is out-
lined in Table 3.
Table 3. Socket Functions
Socket Function
REFIN Sub-Miniature BNC Socket for REFIN.
IOUT Sub-Miniature BNC Socket for IOUT.
MCLK Sub-Miniature BNC Socket for the MCLK
input.
FSEL Sub-Miniature BNC Socket for FSELECT.
PSEL0 Sub-Miniature BNC Socket for PSEL0.
PSEL1 Sub-Miniature BNC Socket for PSEL1.
CONNECTORS
There are three connectors on the AD9831 evaluation board
as outlined in Table 4.
Table 4. Connector Functions
Connector Functions
J1 36-Way Centronics Connector.
J2 PCB Mounting Terminal Block. The Digital
Power Supply to the Evaluation Board is
provided via this Connector.
J3 PCB Mounting Terminal Block. The Ana-
log Power Supply to the Evaluation Board is
provided via this Connector.
SWITCHES
There is one switch on the AD9831 evaluation board. This
switch is a double throw, end stackable switch. This switch
can be used to control the FSELECT, PSEL0 and PSEL1
inputs.