Specifications
1–6 TDS3000 Series Service Manual
Table 1–1: Specifications (cont.)
Trigger
Edg
e
t
r
igg
er
se s p
Any channel, NOISE REJ coupled 3.5 times the DC-coupled limits
se
n
s
itivity, ty
p
ical Any channel, HF REJ coupled 1.5 times the DC-coupled limit
from DC to 30 kHz, attenuates
signals above 30 kHz
Any channel, LF REJ coupled 1.5 times the DC-coupled limits
for frequencies above 80 kHz,
attenuates signals below 80 kHz
Tr
igg
er
l
e
v
e
l
r
ang
e
Source Sensitivity
Any channel ±8 divisions from center of
screen, ±8 divisions from 0 V if LF
REJ trigger coupled
External external ±800 mV
External/10 trigger ±8 V
Line Fixed at the midlevel of the AC
line
SET LEVEL TO 50%,
typical Operates with input signals ≥45 Hz
Tr
igg
er
l
e
v
e
l accu
-
rp
Source Sensitivity
r
acy, ty
p
ical Any channel ±0.2 divisions
External trigger ±20 mV
External/10 trigger ±200 mV
Line N/A
Trigger holdoff range 250.8 ns to 10 s
Vid
e
o t
r
igg
er
se
n
s
itiv
-
p
Triggers on negative sync of NTSC, PAL, or SECAM signal
ity, ty
p
ical Source Sensitivity
Any channel 0.6 to 2.5 divisions of video sync
tip
External trigger 150 mV to 625 mV of video sync
tip
External/10 trigger 1.5 V to 6.25 V of video sync tip
B Trigger Trigger After Time Trigger After B Events
Range 13.2 ns to 50 s 1 event to 9,999,999 events
Minimum time
between arm and
trigger, typical
5ns from the end of the time
period and the B trigger event 5 ns between the A trigger event
and the first B trigger event
Minimum Pulse
Width, typical —B event width, 2 ns
Maximum Fre-
quency, typical —B event frequency, 250 MHz