msm7650 Oki Semiconductor, msm7650 Datasheet - Page 25

• Manufacturer Part Number: msm7650
• Description: Ntsc/pal Digital Encoder
• Manufacturer: Oki Semiconductor

¡ Semiconductor
<Equalizing pulse vertical synchronization period>
Equalizing pulse vertical synchronization period
<Horizontal blanking period>
Setting content of horizontal blanking period (Ts is sampling clock cycle in each mode)
NTSC CCIR601
PAL CCIR601
NTSC Square Pixel
NTSC 4Fsc
PAL Square Pixel
qEqualizing pulse width
wVertical sync pulse width
eSerration
r
e
w
q
q
Equalizing pulse vertical
synchronization period
1/2H
qHorizontal sync pulse width
wBurst signal output period
eBurst signal start
rHorizontal blanking period (excluding front porch)
tFront porch start
t
q
e
Setting content of horizontal blanking period
qblanking level
w
e
rSynchronzing level
(synchronizing+{blanking level) ¥ (2/3)
(synchronizing+{blanking level) ¥ (1/3)
w
r
1/2H
w
63Ts
63Ts
58Ts
67Ts
69Ts
q
Horizontal blanking period
e
31Ts
31Ts
31Ts
36Ts
34Ts
w
1H
t
71Ts
75Ts
65Ts
75Ts
82Ts
q
w
e
r
e
Setting content of equalizing pulse vertical
synchronization period (Ts is sampling clock cycle in each mode)
NTSC CCIR601
PAL CCIR601
NTSC Square Pixel
NTSC 4Fsc
PAL Square Pixel
127Ts
142Ts
116Ts
135Ts
155Ts
r
838Ts
844Ts
762Ts
889Ts
922Ts
t
qSynchronzing level
w
e
rblanking level
tpeak to peak value of burst
(synchronizing+{blanking level) ¥ (1/3)
(synchronizing+{blanking level) ¥ (2/3)
Equalizing pulse vertical
synchronization period
31Ts
32Ts
28Ts
33Ts
35Ts
q
Total dots/1H
398Ts
369Ts
332Ts
387Ts
403Ts
w
858
864
780
910
944
64Ts
63Ts
58Ts
68Ts
69Ts
e
MSM7650
429Ts
432Ts
390Ts
455Ts
472Ts
1/2H
25/34