YOKOGAWA TA220, User Manual, Page: 159 / 178

12-16
IM 704610-01E
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 Standard Deviation σ (jitter) Average
Measured Judgment Measured Reference
value Criteria value Value
1.0 MHz 1.40 ns or less 500
±
10 ns
4.0 MHz 0.40 ns or less 125 ± 2.5 ns
8.0 MHz 0.25 ns or less 62.5 ± 1.5 ns
16.5 MHz 0.15 ns or less 30.3
±
1 ns
• Polarity of the data signal:
Frequency of the 8648A Standard Deviation σ (jitter) Average
Measured Judgment Measured Reference
value Criteria value Value
1.0 MHz 1.40 ns or less 500 ± 10 ns
4.0 MHz 0.40 ns or less 125 ± 2.5 ns
8.0 MHz 0.25 ns or less 62.5 ± 1.5 ns
16.5 MHz 0.15 ns or less 30.3 ± 1 ns
12.6 Performance Test