參數(shù)資料
型號: TVP5150APBSR
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉換
英文描述: COLOR SIGNAL DECODER, PQFP32
封裝: GREEN, PLASTIC, TQFP-32
文件頁數(shù): 9/74頁
文件大小: 439K
代理商: TVP5150APBSR
27
NTSC 601
1436
PAL 601
1436
ITU 656
Datastream
Cb
359
1437
Y
718
1438
Cr
359
1439
Y
719
1440
FF
1441
00
1455
1459
10
1456
1460
80
HSYNC
AVID
ITU-R BT.656 timing.
1583
1587
10
1584
1588
80
1711
1723
10
1712
1724
FF
1713
1725
00
1714
1726
00
1715
1727
XX
0
Cb
0
NOTE: AVID rising edge occurs 4 SCLK cycles early when in the ITU-R BT.656 output mode.
1
Y
0
2
Cr
0
3
Y
1
AVID Stop
AVID Start
HSYNC Start
Figure 23. Horizontal Synchronization Signals
2.13 AVID Cropping
AVID or active video cropping provides a means to decrease bandwidth of the video output. This is accomplished
by horizontally blanking a number of AVID pulses and by vertically blanking a number of lines per frame. The
horizontal AVID cropping is controlled using registers 11h and 12h for start pixels MSB and LSB, respectively.
Registers 13h and 14h provide access to stop pixels MSB and LSB, respectively. The vertical AVID cropping is
controlled using the vertical blanking (VBLK) start and stop registers at addresses 18h and 19h. Figure 24 shows
an AVID application.
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