Channel Link Evaluation Kit User Manual
National Semiconductor Corporation
Interface Products
LIT# CLINK3V28BT-85-UM
Rev 2.1
Date: 10/12/2005
Page 16 of 28
Typical Connection / Test Equipment
The following is a list of typical test equipment that may be used to generate signals
for the TX inputs:
1) TEK HFS9009 - This pattern generator along with 9DG2 Cards may be used to
generate input signals and also the clock signal.
2) TEK DG2020 - This generator may also be used to generate data and clock
signals.
3) TEK MB100 BERT - This bit error rate tester may be used for both signal source
and receiver.
4) Any other signal / pattern generator that generates the correct input levels as
specified in the datasheet.
The following is a list of typically test equipment that may be used to monitor the
output signals from the RX:
1) TEK MB100 BERT - Receiver.
2) Any SCOPE with 50 Ohm inputs or high impedance probes.
LVDS signals may be easily measured with high impedance / high bandwidth
differential probes such as the TEK P6247 or P6248 differential probes.
The picture below shows a typical test set up using a generator and scope.
Oscilloscope,
BERT Tester
Transmitter
Board
Receiver
Board
LVDS Interface
Cable
50 ohm
450 ohm
50 ohm
50 ohm
50 ohm
Typical Connection / Test Equipment Setup
Optional
Termination
Optional
Termination
Signal/Pattern Generator,
BERT Tester
