
Tester Electronics 3 Hardware Components
System Reference, January 2001
41
Channel Boards 4 resp. 8 channels are grouped on one channel module.
Each testhead slot holds a board with 4 of these channel
modules, which results in 16 channels per slot or up to 512
channels in the 32 slots testhead and 1024 channels in the
64 slot testhead (if no analog function is considered)
Figure 18 Channel Boards
The channel borad provides basic functions for digitial
test:
• Generating digital signal to DUT
• Receiving digital signal from DUT and comparing it
with expect data
And it also provides the capture function for mixed-signal
test.
Vector& Scan Memory
7 M … 112 M V ectors (6bit)
14 M … 224 M V ectors (3bit)
2 Channel Modulesper Board
4 C hannel s per M odul e
2MByte
Sequencer
Memory
Test Processor
Driver
Level Generator
Receiver
Pin PM U
Advanced Multi-Chip Module
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