
3 Hardware Components Tester Electronics
42 System Reference, January 2001
The figure below depicts the pin electronics on a channel
board.
Figure 19 Channel Board Electronics
DC/DC Boards Each 128 pins module is equipped with two DC/DC
boards. The DC/DC boards generate the voltages required
for all testhead resident components. They receive power
supply from the AC/DC converters located in the support
rack. By this, interference with the AC power is avoided
completely.
MUX
Receiver
Pogo
Pin
Pin PMU
Relay
ISOL
Relay
DC Rail (on Channel Board)
DC Rail (1 per 128 pin module)
Driver
Per Pin Electronics
PerPin
Electronics
Channel Board
Pin PMU
Programmable Clamp
ve
Active Load
Board ADC
...
DC Relay
AC
Relay
...
50
50
monitorouput
P/F
PerPin
Electronics
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