YOKOGAWA TA220 User Manual page 159

12.6 Performance Test
12-16
Test Procedure
• Test the TA220 after a thirty-minute warm-up.
• Set the frequency of the 8648A to the values indicated in the table below and confirm
that the standard deviation σ (jitter) of the pulse width jitter measurement on the
TA220 are within the ranges given in the table. The average value is reference value.
Test Procedure
1. Set the output level of the 8648A to 360 mVrms and the frequency to 1.0 MHz.
2. Read the standard deviation σ (jitter) on the TA220 and confirm it is within the
determination reference range. The average value is reference value.
3. Set the output level and frequency of the 8648A and the polarity of the data
signal of the TA220 according to the table below, then perform the test in a
similar fashion.
Test Results
• Polarity of the data signal:
Frequency of the 8648A
1.0 MHz
4.0 MHz
8.0 MHz
16.5 MHz
• Polarity of the data signal:
Frequency of the 8648A
1.0 MHz
4.0 MHz
8.0 MHz
16.5 MHz
Standard Deviation σ (jitter)
Measured Judgment
value Criteria
1.40 ns or less
0.40 ns or less
0.25 ns or less
0.15 ns or less
Standard Deviation σ (jitter)
Measured Judgment
value Criteria
1.40 ns or less
0.40 ns or less
0.25 ns or less
0.15 ns or less
Average
Measured Reference
value Value
500±10 ns
125±2.5 ns
62.5±1.5 ns
30.3±1 ns
Average
Measured Reference
value Value
500±10 ns
125±2.5 ns
62.5±1.5 ns
30.3±1 ns
IM 704610-01E