参数资料
型号: TVP5150PBSG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 颜色信号转换
英文描述: COLOR SIGNAL DECODER, PQFP32
封装: GREEN, PLASTIC, TQFP-32
文件页数: 11/27页
文件大小: 453K
代理商: TVP5150PBSG4
Detailed Description
15
SLES043 — September 2002
TVP5150
2.7
Synchronization Signals
Non-data stream embedded syncs are provided via the following signals:
VSYNC (vertical sync)
FID/VLK (field indicator or vertical lock indicator)
GPCL/VBLK (general-purpose IO or vertical blanking indicator)
PALI/HLK (PAL switch indicator or horizontal lock indicator)
HSYN (horizontal sync)
AVID (active video indicator)
In hardware, VSYN, FID, PALI, and VBLK are software set and double buffered to an independent
programmable SCLK pixel count. This allows any possible alignment to the internal pixel count and line count.
The proper settings for a 525-line video output are given as an example below.
Composite Video
Odd Field
525
Note 1. Line numbering conforms to ITU-R BT.470
VSYN
VBLK
FID
123456
789
10
11
21
22
23
525-Line
262
263
264
265
266
267
268
269
270
271
272
273
283
284
285
Composite Video
Even Field
VSYN
VBLK
FID
HSYN
Horizontal Detail
(Default HSYN Timing)
Figure 2–14. 525-Line Vertical Synchronization Signal
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TVP5150PBS COLOR SIGNAL DECODER, PQFP32
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