3 board overview, 1 board introduction, 2 board specific information – Kontron CP372 User Manual
Page 21: Board overview - 5, Board introduction - 5, Board specific information - 5, Cp372 introduction
CP372
Introduction
ID 25780, Rev. 01
© 2002 Kontron Modular Computers GmbH
Page 1 - 5
25780
.01.VC.021
121/1
11236
P R E L I M I N A R Y
1.3
Board Overview
1.3.1
Board Introduction
The CP372 is an eight channel, dual cluster (four channels each), analog output board. Appli-
cation software can provide up to eight logical channels of digital data per board for processing
to analog signal outputs. Output data is presented to the CP372 via the CompactPCI interface
for conversion to either an output voltage or output current and makes it available for applica-
tion process use.
Output signal generation begins with the presentation of digital data to the DAC ProComm Con-
troller which is responsible for controlling the digital to analog data conversion process as well
as the interface to the CompactPCI bus. The DAC ProComm controller then in turn provides
data to the two DACs accordingly. The analog outputs of the DACs are then processed through
appropriate signal conditioning prior to being made available to the application process at the
board’s front panel interface.
Output signal types and ranges are as follows:
•
Voltages:
•
Unipolar:
•
0 to
1
5 V
•
0 to 10 V
•
Bipolar:
•
±
1
5 V
•
± 10 V
•
Current:
•
0 to 20 mA
(requires external power supply source voltage for analog current output)
Input data are:
•
Up to eight logical channels of digital data for conversion to analog output signals
(supplied by the application software)
1.3.2
Board Specific Information
Specific board components involved in the digital to analog conversion and data handling pro-
cess are:
•
One front panel connector (62-pin, female, D-Sub type)
•
Eight channels of output signal conditioning
•
Two, 12-bit DACs (one for each cluster of 4 channels each)
•
Ten optocouplers (four dual high speed and six general purpose (four quad, and two
singles)
•
One FPGA (the DAC ProComm controller)
•
One CompactPCI bus connector (J1, board to backplane, 132-pin, female, six row)
•
One JTAG/ISP on board programming connector (10-pin, male, dual row)
•
Two DC/DC converters (one +5 V and one ± 15 V, both with 3 kV isolation)
•
One EEPROM (Capability ROM)