System Specifications
CSA8000 & TDS8000 Instruments and Sampling Modules
1–3
Table 1–3:
System – Trigger
Description
Characteristics
Trigger sources
External Direct Edge Trigger, External Precsaled Trigger, Internal Clock
Trigger, and Clock Recovery (with appropriately equipped optical
modules)
Auto/normal mode
Normal mode: wait for trigger
Auto mode: Trigger automatically generated after 100 ms time-out
Slope + or – select
Edge + mode: Triggers on positive-slewing edge
Edge – mode: Triggers on negative-slewing edge
High frequency on/off
select
High Frequency ON mode: Removes trigger hysteresis and improves
sensitivity. Should be used when trigger slew rate exceeds 1 V/ns.
High Frequency OFF mode: Retains trigger hysteresis and improves
noise rejection at low slew rates.
Metastability Reject
On/Off select
Metastability Reject On mode: Upon detection of trigger and holdoff
collision, time base will reject the sampled point.
Metastability Reject Off mode: Allows metastable points caused by
trigger/holdoff collisions to display.
Variable trigger hold
off range and resolu-
tion
Adjustable 5
m
s to 50 ms in 0.5 ns increments. When External
Prescaled Trigger mode is used, holdoff period applies to the Prescaled
circuit output.
External direct trigger
capabilities and
conditions
Direct edge triggering on signal applied to dedicated front panel
connector with Holdoff, Level Adjust, Auto/Normal, High Frequency
On/Off, and Enhanced Triggering On/Off controls.
External direct trigger specifications apply only under the condition that
no other trigger signal is applied to respective connectors.
Short term optimized mode and locked to internal 10 MHz reference
specifications only apply under the condition that there is no external
10 MHz reference applied to the front panel connector.
External direct trigger
input characteristics
1
50
W
input resistance, DC coupled only
External direct trigger
input range
±
1.5 V (DC + peak AC) maximum input voltage
External direct trigger
maximum operating
trigger signal
2
1 Vpp
External direct trigger
level range
Adjustable between
±
1.0 V
n
External direct
trigger sensitivity
3
100 mV, DC-3 GHz
External direct
trigger sensitivity
50 mV typical, DC-4 GHz
External direct trigger
level resolution
1 mV
Содержание CSA8000 Series
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Страница 22: ...Preface xviii CSA8000 TDS8000 Instruments and Sampling Modules ...
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Страница 59: ...80C00 Modules Specifications 1 36 CSA8000 TDS8000 Instruments and Sampling Modules back ...
Страница 63: ...80A01 Module Specifications 1 40 CSA8000 TDS8000 Instruments and Sampling Modules ...
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Страница 74: ...Installation 2 10 CSA8000 TDS8000 Instruments and Sampling Modules ...
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Страница 106: ...Performance Verification Procedures 4 2 CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 122: ...Brief Procedures 4 18 CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 126: ...Performance Tests 4 22 CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 218: ...80A01 Trigger Preamplifier Module 4 114 CSA8000 TDS8000 Instruments and Sampling Modules ...
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Страница 291: ...Removal and Installation Procedures 6 66 CSA8000 TDS8000 Instruments and Sampling Modules ...
Страница 307: ...Repackaging Instructions 6 82 CSA8000 TDS8000 Instruments and Sampling Modules ...
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