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参数资料
| 型号： | TVP5158PNPR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 颜色信号转换 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP128 |
| 封装： | GREEN, PLASTIC, HTQFP-128 |
| 文件页数： | 25/108页 |
| 文件大小： | 1395K |
| 代理商： | TVP5158PNPR |
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SLES243E
– JULY 2009 – REVISED MARCH 2011
3.8
Output Formatter
The output formatter is responsible for generating the output digital video stream. Table 3-4 provides a
summary of line frequencies, data rates, and pixel counts for different input standards. TVP5158 supports
non-interleaved output mode, pixel-interleaved output mode and line-interleaved output mode. The
non-interleaved mode is similar to the TVP5154A device, except that a single fixed clock output is used. In
the interleaved modes, the video output data from multiple decoder channels are multiplexed together and
then output to a single 8-bit or 16-bit port. The video output data from selected channels can be
interleaved on a pixel or line basis.
Table 3-4. Summary of Line Frequencies, Data Rates and Pixel Counts for Different Standards
Pixel
Color Subcarrier
Horizontal Line
Standards
Active Pixels
Lines per
Pixels per Line
Frequency
Rate
(ITU-R BT.601)
per Line
Frame
(MHz)
(kHz)
NTSC-J, M
858
720
525
13.5
3.579545
15.73426
NTSC-4.43
858
720
525
13.5
4.43361875
15.73426
PAL-M
858
720
525
13.5
3.57561149
15.73426
PAL-60
858
720
525
13.5
4.43361875
15.73426
PAL-B, D, G, H, I
864
720
625
13.5
4.43361875
15.625
PAL-N
864
720
625
13.5
4.43361875
15.625
PAL-Nc
864
720
625
13.5
3.58205625
15.625
3.8.1
Non-Interleaved Mode
In the non-interleaved mode, the YCbCr digital output is programmed as 8-bit ITU-R BT.656 parallel
interface standard. Depending on which output mode is selected, the output for each channel can be
un-scaled data or scaled data. Also each video output port can be selected to output the video data from
any 1 of 4 video decoders. Table 3-5 shows the detailed information about non-interleaved mode.
Table 3-5. Output Ports Configuration for Non-Interleaved Mode
Video Output
Cascade
I2C Address:
OCLK
Port A
Port B
Port C
Port D
Format
Stage
B0h
(MHz)
1-Ch D1
n/a
00h
27
Any 1 of 4 Ch
1-Ch Half-D1
n/a
02h
27
Any 1 of 4 Ch
1-Ch CIF
n/a
03h
27
Any 1 of 4 Ch
3.8.2
Pixel-Interleaved Mode
Each video decoder supports multiplexing two or four channels ITU-R BT.656 format data together on a
pixel basis. The output from each video decoder channel is still ITU-R BT.656 format. After the processing
in output formatter, two or four channels video data has been interleaved together by strictly one pixel
from each channel.
The pixel-interleaved mode is dedicated for the backend chip which has limited video input ports.
Table 3-6 gives the output port configuration for pixel-interleaved mode.
Copyright
2009–2011, Texas Instruments Incorporated
Functional Description
23
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