Anritsu BERTWave MP2100B, Руководство по эксплуатации, Страница: 159 / 382

5.8 Setting Sync Output
5-27
5
Generating Pulse Signal
The Sync Output amplitude cannot be set.
The time interval outputting the pulse varies depending on the pattern
length and bit rate when Sync Output is PPG Pattern Sync .
Select the pattern for the measurement referring to Table 5.8-1.
Table 5.8-1 Cycle of Sync Output (PPG Pattern Sync)
Pattern Name
Bit Rate (kbit/s)
155520 622080 1250000 2488320 4250000 10000000
PRBS 2^7–1 52.3  s 13.1  s 6.5  s 3.27  s 1.91  s 812 ns
PRBS 2^9–1 210  s 52.6  s 26.2  s 13.1  s 7.70  s 3.27  s
PRBS 2^15–1 13.48 m s 3.37 ms 1.68 ms 843  s 493  s 210  s
PRBS 2^23
–
1 3.45 s 863 ms 429 ms 216 ms 126 ms 53.7 ms
PRBS 2^31–1 884 s 221 s 110 s 55.2 s 32.3 s 13.7 s
CAUTION

The impedance of the Sync Out connector is 50 Ω .
Measurement may not be performed correctly if a
coaxial cable with another impedance is used or if the
impedance of the DUT is not 50
Ω .

The output voltage of the Sync Out connector is –0.5 to
0 V. Check that the output voltage does not exceed the
DUT maximum input specifications. If it does, connect
an attenuator to the Sync Out connector.