36
Composite Sync. & Video (Sync. on Green)
62
61
Recommended Sync Signal Timing
Horizontal Duty should be 3 to 30%.
Horizontal sync width should exceed 0.9
µ
sec.
Horizontal back porch should exceed 2.0
µ
sec at sync on green and 1.2
µ
sec at others except when at 15KHz.
Horizontal blanking should exceed: 15.75; 10
µ
sec, 31KHz< fH<63.2KHz: 3.6
µ
sec, 63.2KHz<fH: 2.7
µ
sec.
Vertical Duty should be 0.2 to 10%.
Vertical sync width should exceed 40
µ
sec or 2 horizontal lines.
Vertical sync width plus back porch should exceed 0.4 msec.
Interlaced signals are not recommended.
Interlaced signals with composite sync may not be displayed.
A
B
C
D
E
VIDEO
O
P
Q
R
S
P
VIDEO
Sync. Polarity: Negative
HORIZONTAL
VERTICAL