CD22402 Datasheet, PDF (7/11 Pages) Harris Corporation – Sync Generator for TV Applications and Video Processing Systems

CD22402
Timing Waveforms (Continued)
MICROSECONDS
0
2
500kHz
OSC. PIN 2 OR 6
MIXED BLANKING
PIN 13
HORIZ. DRIVE PIN 4
CATHODE
BLANKING
PIN 7
HORIZ. CLAMP
PIN 11
H. SYNC
MIXED SYNC
PIN 5
EQUALIZING
PULSE
V. SYNC
4
6
8
10
12
12µs
4µs
8µs
2µs
4µs
2µs
26µs
28
32
2µs
4µs
FIGURE 4. SYNC GENERATOR TIMING - 625/50Hz, HORIZONTAL TIMING WAVEFORMS
VERTICAL RESET TO
FIRST EQUALIZING
PULSE
VERTICAL RESET
TO FIRST
VERTICAL PULSE
LINE NO
MIXED SYNC
PIN 5
0
1
2
3
4
5
6
7
8
9
10
21
VERT. DRIVE
PIN 9
VERTICAL
PROCESSING
BLANKING
PIN 17
WIDE BLANKING
PIN 13
SHORT VERTICAL
DRIVE PIN 16
0.57ms
1.36ms
0.194ms
CATHODE
BLANKING
PIN 7
FRAME SYNC
PIN 15
(ON ALTERNATE FIELDS)
2µs (NOT TO SCALE)
FIGURE 5. SYNC GENERATOR TIMING - 625/50Hz, VERTICAL TIMING WAVEFORMS
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