Publication No. 980935 Rev. A
3152B User Manual
SYNC Output – Zero
Equipment: Oscilloscope
Preparation:
1. Configure the oscilloscope as follows:
Time Base:
As required by the test
Amplitude:
2 V/div
2. Connect the 3152B output to the oscilloscope input (1)
3. Connect the 3152B SYNC to the oscilloscope input (2)
4. Configure model 3152B channel as follows:
Waveform: Sinc
‘0’ Crossing
10
Output: On
Sync Output:
On
Sync Source: Zero
Test Procedure:
1. Observe that the SYNC output has 10 sinc cycles for each
“0” crossing level.
Test Results
Pass Fail
PLL Operation
This tests the operation of the PLL function. The 3152B locks
automatically to an external trigger source. The frequency and the
start phase of the external signals are applied to the 3152B TRIG/PLL
input. After lock (as indicated by the LOCK LED), the start phase of
the 3152B can be modified from -180
°
to 180
°
.
PLL Checks –
Frequency Lock
Equipment: Counter, function generator
Preparation:
1. Configure the function generator as follows:
Waveform: Square
Amplitude: 2
V
Output:
On
Frequency:
As required by the tests
2. Connect the function generator output to the 3152B TRIG/PLL
IN connector. Using a “T” connector, connect the same output
to the counter input – CH A. Use a 50
Ω
feedthrough terminator
at the 3152B trigger input.
3. Configure the counter as follows:
Function: Freq
A/B
Input:
50
Ω
4. Connect the 3152B output to the counter input – CH B.
5. Configure the model 3152B as follows:
Waveform: Sine
Frequency: 200
kHz
Output: On
EADS North America Test and Services
Performance Checks 6-21
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