参数资料
型号: TVP5151PBS
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, QFP-32
文件页数: 8/85页
文件大小: 958K
代理商: TVP5151PBS
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
1
Y
0
2
Cr
0
3
Y
1
AVID Stop
AVID Start
HSYNC Start
SECAM
1436
1437
1438 1439 1440 1441
1479 1480
1607 1608
1719 1720 1721 1722 1723
17
24
17
25
17
26
17
27
TVP5151
SLES241D – SEPTEMBER 2009 – REVISED MARCH 2011
www.ti.com
A.
AVID rising edge occurs four SCLK cycles early when in the ITU-R BT.656 output mode.
Figure 3-6. Horizontal Synchronization Signals
3.13 Active Video (AVID) Cropping
The AVID output signal provides a means to qualify and crop active video both horizontally and vertically.
The horizontal start and stop position of the AVID signal is controlled using registers 11h-12h and
13h-14h, respectively. These registers also control the horizontal position of the embedded sync SAV/EAV
codes.
AVID vertical timing is controlled by the VBLK start and stop registers at addresses 18h and 19h. These
VBLK registers have no effect on the embedded vertical sync code timing. Figure 3-7 shows an AVID
application.
NOTE
The above settings alter AVID output timing, but the video output data is not forced to black
level outside of the AVID interval.
16
Functional Description
Copyright 2009–2011, Texas Instruments Incorporated
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