Tektronix 1910 - Page 17

Table 1-4 (cont)
Specification-1910 Operators
Performance
Supplemental Perf. Ck.
Characteristics Requirements
Information
Step. No.
Bar
Amplitude
100 IRE
±0.7 IRE
Rise Time
I
FCC 250 ns ±25 ns
NTC 7
125 ns ± 15 ns
Line Timing
FCC
See
Fig. 1-4B.
NTC 7
See
Fig 1-4C.
MODULATED BAR
White Reference Bar
Amplitude 100 IRE
±0.7 IRE
Rise Time
250
ns ±25 ns
Pulse-to-Bar 1:1 ±1%
Pulse Half Amplitude
Duration
12.5 HAD
1.57
j.lS ± 180 ns
2T HAD
250 ns
:!:25 ns
12.5 Modulated Pulse
Frequency
3.579545 MHz Digitally derived from 14.3 MHz
clock.
Phase
327
0
=10
Modulated Bar
Chrominance
Amplitude 100 IRE
±1 IRE
Rise Time
1.56
IJ.S ± 100 ns
Frequency
3.579545 MHz Digitally derived from 14.3 MHz
clock.
1-15