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Publication No. 980938 Rev. K
Model T940 User Manual
Astronics Test Systems
DR9 Driver/Receiver Board H-7
DB
DRIVER
&
RECEIVER
I/O
FRONT
PANEL
ADC
FPGA
CBUS
INTERRUPT
I/O CONTROL
V+FP
V-FP
GND_REF
MONITOR
POWER
MONITOR
OVERVOLT
V+F
V-F
V+
V-
V+PC
V-PC
DUT_GND FP
SIG GND
DUT_GND
V+F
CALIBRATION
REFERENCES
EXTFORCE
EXTSENSE
MF SIG
MP SIG
FRONT
PANEL
TEMPERATURE
MONITORS
TEMPMON
V-F
V+F
V-F
Figure H-5: DR9 Control Logic Block Diagram
Signal Descriptions
MP SIG
Multi-Purpose signal from the data sequencer.
CBUS
An internal Control Bus connecting the digital board to the
Driver/Receiver board.
INTERRUPT
Real time signal generated from the power and
temperature monitor data.
V+PC
Positive bias power required for operation of the Pin
Electronics devices from the T940 power converter.
V-PC
Negative bias power required for operation of the Pin
Electronics devices from the T940 power converter.
DUT_GND FP
This signal comes from the UUT and can be used to offset
the reference levels up to ±3 V. Excursions of DUT_GND