Datasheet

As an Input to a Analog-to-Digital Converter EVM
3-2
3.1 As an Input to a Analog-to-Digital Converter EVM
When the signal conditioning board is used with an analog-to-digital converter
EVM, connector J1 (bottom side of PCB) plugs into a male header located on
the left edge of the interface board, providing support/stabilization.
The output from the signal conditioning board is available on J7. The 20-pin
socket portion of J7 plugs into the analog I/O header located on the interface
board which then routes the analog signals to the input of the ADC. The 20-pin
header portion of J7 provides test point access to the analog signals feeding
the ADC. See Table 3-1 for the details of J7 connections.
3.2 As an Output From a Digital-to-Analog Converter EVM
When the signal conditioning board is used with a digital-to-analog converter
EVM, connector J1 (bottom side of PCB) plugs into one of two male analog I/O
headers that provide the raw analog output from the DAC.
In this case, the female socket portion of J7 plugs into one of the male header
located on the left edge of the interface board for support. The output from the
signal conditioning board is available from the 20-pin male header portion of
J7. Standard 0.1 inch center IDC ribbon cables can then feed the analog signal
to any additional circuits or user customized board.
Table 3-1.Signal Conditioning Board J1 and J2-J5 Connections
Signal
Pin Number
(Pins and Socket)
Signal
AGND 1 2 A0
AGND 3 4 A1
AGND 5 6 A2
AGND 7 8 A3
AGND 9 10 A4
AGND 11 12 A5
AGND 13 14 A6
VCOM 15 16 A7
AGND 17 18 REF(-)
AGND 19 20 REF(+)
The J7 header/socket combination is a feed through design. Signals at the
pins are identical to those on the sockets located directly below them. As
mentioned previously, differential signals are typically applied between
adjacent channels; consult the user’s guide of the data converter EVM for
configuration information.