Tektronix 1780-R 1780R-Series Operators Manual 513, Table 56: Synchronization , 1780R-Series Operators Manual 513, Table 56: Synchronization

Specifications
1780R-Series Operator’s Manual 5–13
Table 5–6: Synchronization
Characteristics Performance
Requirements Supplemental Information
Sync Input
Internal
Ref. Sync
Separator 0.2 to 2.0 V peak-to-peak composite video. Composite video applied to Inputs A, B1, B2, or B3 or
probe.
Int. Sync
Separator 0.5 to 2.0 V peak-to-peak composite video.
External
Black Burst –14 dB to +6 dB. Black Burst signal of 0.2 to
5 times amplitude applied
to EXT SYNC input.
Composite Sync 0.2 to 8.0 V peak-to-peak. Composite sync applied to
EXT SYNC input locks
waveform monitor; vector-
scope also requires CW
signal.
SCH Modes 286 mV (300 mV PAL) Sync
and Burst ±3 dB. Composite Video or Black Burst.
Direct Sync
Horiz. Freq. Range 15.75 kHz ±1 kHz. Frequencies much below
15.75 kHz will not permit a
normal TV display.
Sync Jitter
Comp sync or
video ≤12 ns with respect to input sync.
Variable APL
(10–90%) ≤20 ns; with the addition of 36 dB white noise ≤90 ns.
Noise Immunity <250 ns jitter, 1 V compos-
ite video with –26 dB white
noise.
Specifications
1780R-Series Operator’s Manual 5–13
Table 5–6: Synchronization
Characteristics Performance
Requirements Supplemental Information
Sync Input
Internal
Ref. Sync
Separator 0.2 to 2.0 V peak-to-peak composite video. Composite video applied to Inputs A, B1, B2, or B3 or
probe.
Int. Sync
Separator 0.5 to 2.0 V peak-to-peak composite video.
External
Black Burst –14 dB to +6 dB. Black Burst signal of 0.2 to
5 times amplitude applied
to EXT SYNC input.
Composite Sync 0.2 to 8.0 V peak-to-peak. Composite sync applied to
EXT SYNC input locks
waveform monitor; vector-
scope also requires CW
signal.
SCH Modes 286 mV (300 mV PAL) Sync
and Burst ±3 dB. Composite Video or Black Burst.
Direct Sync
Horiz. Freq. Range 15.75 kHz ±1 kHz. Frequencies much below
15.75 kHz will not permit a
normal TV display.
Sync Jitter
Comp sync or
video ≤12 ns with respect to input sync.
Variable APL
(10–90%) ≤20 ns; with the addition of 36 dB white noise ≤90 ns.
Noise Immunity <250 ns jitter, 1 V compos-
ite video with –26 dB white
noise.