Specifications
1-12
TDS7104 & TDS7054 Service Manual
Table 1- 4: Trigger specifications
Characteristic Description
Auxiliary trigger input resistance,
typical
≥ 1.5 kΩ
Maximum trigger input voltage,
typical
±20 V (DC or peak AC)
n Edge Trigger Sensitivity Trigger Source Sensitivity
TDS7054 Any channel, DC coupled 0.35 div from DC to
50 MHz, increasing to 1 div
at 500 MHz
Auxiliary input 400 mV from DC to
50 MHz, increasing to 750
mV at 100 MHz
TDS7104 Any channel, DC coupled 0.35 div from DC to
50 MHz, increasing to 1 div
at 1 GHz
Auxiliary input 250 mV from DC to
50 MHz, increasing to 500
mV at 100 MHz
Edge t rigger sensiti v ity, typical All sources, for vertical scale settings ≥10 mV/div and
≤1V/div
Trigger coupling Sensitivity
NOISE REJ 3×the DC-coupled limits
AC Same as DC-coupled limits
for frequencies ≥60 Hz,
attenuates si gnals <60 Hz
HF REJ 1.5×the DC-coupled limits
from DC to 30 kHz, attenu-
ates signals >30 kHz
LF REJ 1.5×the DC-coupled limits
for frequencies ≥80 kHz,
attenuates si gnals <80 kHz
Advanced t rigger sensiti v ity, typical For all trigger types except Edge, with vertical scale
settings ≥10 mV/div and ≤1V/div
1.0 div, from DC to 500 MHz
Tri gger level or threshold range Trigger Source Range
Any channel ±12 divisions from cent er of
screen
Auxiliary input ±8V
Line Not settable