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Triggering
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CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual
Comm Triggering
The instrument can trigger on communication signals (optional on CSA7000
Series & TDS6000 Series). For detailed information on using comm triggering
to trigger on your communications signals, see the C SA7000, TDS7000 &
TDS6000 Series Options SM Serial Mask Testing and Option ST Serial
Triggering User Manual.
Serial Pattern Triggering
In applications that involve signals with serial data patterns, you may be able to
use serial pattern triggering (optional on TDS7000 Series & TDS6000 Series,
and not available on the TDS7104 and TDS7054) to capture more complex
events. Serial trigger provides a direct means to analyze pattern dependent
issues, even on a single-shot basis. Acquisition of low power signals can be
enhanced by combining serial trigger and signal averaging to reduce random
noise. You can specify patterns with up to 32 bits, including don’t-care bits. The
serial trigger system can be clocked from an external source or from internal
clock recovery. Serial pattern trigger operates on NRZ-encoded signals at data
ratesupto1.25Gb/s.
For detailed information on using serial pattern triggering to trigger on your
serial pattern data signals see the CSA7000, TDS7000 & TDS6000 Series
Options SM Serial Mask Testing and Option ST Serial Triggering User Manual.
NOTE. The instrument will attempt to acquire lock once. If the input data is
disrupted, removed, or heavily distorted, the instrument may not acquire lock or
may lose lock. If the r ecovered clock is not locked to the incoming data, the
waveform display will not be stable. Once the input data is available, press the
PUSH SET TO 50% knob to force the instrument to reacquire lock.