參數(shù)資料
型號: TVP5147M1IPFPQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PQFP80
封裝: PLASTIC, HTQFP-80
文件頁數(shù): 33/108頁
文件大?。?/td> 937K
代理商: TVP5147M1IPFPQ1
NTSC 601
64
PAL 601
10-Bit (PCLK = 2 × Pixel Clock)
64
Mode
B/2
First Field
B/2
858
864
H/2
32
20-Bit (PCLK = 1 × Pixel Clock)
32
B/2
429
432
H/2
HS
VS
Second Field
HS
VS
B/2
H/2 + B/2
SLES140F – JULY 2005 – REVISED DECEMBER 2010
www.ti.com
Figure 2-16. VSYNC Position With Respect to HSYNC
2.5.2
Embedded Syncs
Standards with embedded syncs insert the SAV and EAV codes into the data stream on the rising and
falling edges of AVID. These codes contain the V and F bits, which also define vertical timing. Table 2-3
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.
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 2-3. EAV and SAV Sequence
D9 (MSB)
D8
D7
D6
D5
D4
D3
D2
D1
D0
Preamble
1
Preamble
0
Preamble
0
Status word
1
F
V
H
P3
P2
P1
P0
0
2.6
I
2C Host Interface
Communication with the TVP5147M1 decoder is via an I2C host interface. The I2C standard consists of
two signals, the serial input/output data (SDA) line and the serial input clock line (SCL), which carry
information between the devices connected to the bus. A third signal (I2CA) is used for slave address
selection. Although an I2C system can be multimastered, the TVP5147M1 decoder functions as a slave
device only.
30
Functional Description
Copyright 2005–2010, Texas Instruments Incorporated
Product Folder Link(s): TVP5147M1
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