YOKOGAWA TA120E, Руководство пользователя

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9-18
IM 704420-01E
Test method
• Test the TA120E after 30 minutes of warm-up.
• Set the frequency of the 8657B to the values indicated in the table below and
confirm that the standard deviation
σ
(jitter) and the average value under the 3T
jitter measurement of the TA120E are within the determination reference in the
table.
Test procedure
1. Set the output level of the 8657B to 360 mVrms and the frequency to 720 kHz.
2. Set the speed of the TA120E to [1.0] and the polarity of the data signal to .
3. Read the standard deviation
σ
and the average value. Confirm that the values
are within the allowable range.
4. Set the output level and frequency of the 8657B and the speed and polarity of
the data signal of the TA120E according to the table below, then perform the
test in a similar fashion.
Test result
• Polarity of the Data Signal:
Frequency of the Speed of the Standard Deviation Average Value
8657B TA120E
σ
(Jitter)
Measured Value Measured Value
Allowable Range Allowable Range
720 kHz 1.0 0.65 ns or less 684 ns to 705 ns
2.88 MHz 4.0 0.39 ns or less 170 ns to 177 ns
4.5 MHz 6.2 0.36 ns or less 109 ns to 114 ns
7.2 MHz 10.0 0.34 ns or less 67.2 ns to 71.6 ns
• Polarity of the data signal:
Frequency of the Speed of the Standard Deviation Average Value
8657B TA120E
σ
(Jitter)
Measured Value Measured Value
Allowable Range Allowable Range
720 kHz 1.0 0.65 ns or less 684 ns to 705 ns
2.88 MHz 4.0 0.39 ns or less 170 ns to 177 ns
4.5 MHz 6.2 0.36 ns or less 109 ns to 114 ns
7.2 MHz 10.0 0.34 ns or less 67.2 ns to 71.6 ns
9.6 Executing the Performance Test