24
The figure shows channel A as an example of how the output stage is realized.
Fig. 2-3
Output Circuit of the D/A Converters
The voltages of the reference output A and channel A are each generated by
an output of the A/D converter.
2.4.2
Output Voltage Range
In unipolar mode, the output voltage of each output is 0 V to +10 V.
In bipolar mode, the voltage is -10 V to +10 V.
The unipolar or bipolar mode can be set separately for each output.
2.4.3
Digital/Analog Converter
The digital/analog converter features a 12-bit resolution while the serial data
transfer time is 4
m
s per data word. The D/A converter is electrically isolated
from the voltage supply of the VMEbus system.
2.4.4
Control Interface
The control interface of the PB1650DAC piggyback consists of two shift
registers and PAL logic. It controls the 16-bit parallel/serial conversion and the
data flow to the converter.
The interface also generates clock signals and the status register enabling
access to the EOS (end of shift) and EOP (end of programming) signals.
Additionally, the control interface generates the "$EA" ID byte for the
PB1650DAC1.1 piggyback. The ID byte can be used to read the equipment of
the carrier board using a software program.
2.4.5
Size of the Address Range
The size of the address range occupied by the PB1650DAC1.1 in your system
is 256 bytes.
VRefA
ChannelA
AOUT
BA2
10 K
W
20 K
W
20 K
W
10 VRef
+
-
Summary of Contents for ES1650.1
Page 1: ...ES1650 1 Piggyback Carrier Board User s Guide ...
Page 10: ...Introduction 10 ...
Page 20: ...20 Physical Dimensions Circuit board 100 x 160 mm Front panel Height 3 U Width 4 HP 20 3 mm ...
Page 45: ...45 Physical Dimensions Length 100 mm Width 48 mm Depth 12 mm ...
Page 46: ...46 ...
Page 64: ...PB1650PRT1 1 Prototyping Piggyback 64 ...
Page 82: ...82 ...
