参数资料
型号: TVP5150AM1MPBSREP
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: PLASTIC, TQFP-32
文件页数: 14/79页
文件大小: 896K
代理商: TVP5150AM1MPBSREP
HSYNC
AVID Start
AVID Stop
VBLK
Stop
VBLK
Star
t
VSYNC
AVID Cropped
Area
Active Video Area
3.14 Embedded Syncs
TVP5150AM1-EP
Ultralow-Power NTSC/PAL/SECAM Video Decoder
www.ti.com
SLES213 – MAY 2008
Figure 3-4. AVID Application
Standards with embedded syncs insert SAV and EAV codes into the datastream at the beginning and end
of horizontal blanking. These codes contain the V and F bits that also define vertical timing. F and V
change on EAV. Table 3-4 gives the format of the SAV and EAV codes.
H equals 1 always indicates EAV. H equals 0 always indicates SAV. The alignment of V and F to the line
and field counter varies depending on the standard. See ITU-R BT.656 for more information on embedded
syncs.
The P bits are protection bits:
P3 = V xor H
P2 = F xor H
P1 = F xor V
P0 = F xor V xor H
Table 3-4. EAV and SAV Sequence
8-BIT DATA
D7 (MSB)
D6
D5
D4
D3
D2
D1
D0
Preamble
1
Preamble
0
Preamble
0
Status word
1
F
V
H
P3
P2
P1
P0
Functional Description
21
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