參數(shù)資料
型號(hào)： 8817
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： NTSC/PAL Digital Video Encoder
中文描述： NTSC / PAL數(shù)字視頻編碼器
文件頁(yè)數(shù)： 26/43頁(yè)
文件大小： 818K
代理商： 8817
ASAHI KASEI
[AK8817]
MS0413-E-00
26
2005 / Aug
( 1-1 ) EAV / SAV Code and Line Synchronization
The AK8817 makes Vertical synchronization ( Line synchronization ) when F-bit in EAV makes transition from
“ 1 “ to “ 0 “.
F-bit of EAV / SAV and Line relation is as follows
F-bit
NTSC
0
Line4 – Line265
Line1 – Line312
Line266 – Line525
Line1 – Line3
For reference, V-bit of EAV / SAV and Line relation is also shown below.
Field
V-bit
NTSC
Start (V=1)
Line1 – Line19
Field 1
End (V=0)
Line20 – Line263
Start (V=1)
Line264 – Line282
Field 2
End (V=0)
Line283 – Line525
Digital
Line-No.
PAL
1
Line313 – Line625
PAL
Line624 – Line625 – Line22
Line23 – Line310
Line311 – Line335
Line336 – Line623
F-bit
267
268
269
270
271
272
266
Digital
Line-No.
F-bit
4
5
6
7
8
9
3
2
1
265
264
263
Line Synchronization by EAV at NTSC input case
synchronization is made at this timing
Digital
Line-No.
F-bit
314
315
316
317
318
319
313
Digital
Line-No.
F-bit
1
2
3
4
5
6
625
624
623
312
311
310
Line Synchronization by EAV at PAL input
622
synchronization is made at this timing
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