Specifications
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
1- 15
Table 1- 4: Trigger specifications
Characteristic Description
Trigger jitter, typical
TDS7704B 1.2 ps rms for low frequency, fast rise time signal
CSA7404B & TDS7404B 1.5 ps rms for low frequency, fast rise time signal
TDS7154B, & TDS7254B 2 ps rm s for low frequency, fast rise time signal
Edge Trigger Sensitivity All sources, for vertical scale settings≥10 mV/div and≤1 V/ div
Tri gger Source Sensitivity
Main trigger, DC coupled ≤ 0.5 div from DC to 50 MHz
CSA7404B, TDS7704B, TDS7404B
≤ 1.5 div at 3 GHz
TDS7254B:
≤ 1 div at 2.5 GHz
TDS7154B
≤ 1 div at 1.5 GHz
Delayed trigger, DC coupled ≤ 0.5 div from DC to 50 MHz
CSA7404B, TDS7704B, TDS7404B
≤ 1.5 div at 3 GHz
TDS7254B:
≤ 1 div at 2.5 GHz
TDS7154B
≤ 1 div at 1.5 GHz
Auxiliary input, DC coupl ed ≤ 150 mV from DC to 50 MHz, increas-
ing to 500 mV at 2.5 GHz (typical
between 2 and 2.5 GHz)
Edge Trigger Sensitivity, either slope, DC
All sources, for vertical scale settings≥10 mV/div and≤1 V/ div
oupled, t
pi
l
Tri gger coupling
Sensitivity
DC ≤ 0.5 div from DC to 50 MHz
≤ 1 div at 1.25 GHz
NOISE REJ 3× the DC-coupledlimits
AC Same as DC-coupledlimits for frequen-
cies > 100 Hz, at tenuates signals
<100 Hz
HF REJ Same as DC-coupledlimits for frequen-
cies < 20 kHz, at tenuates signals
> 20 kHz
LF REJ Same as DC-coupledlimits for frequen-
cies > 200 kHz, at tenuates signals
< 200 kHz