Datasheet

TVP5158, TVP5157, TVP5156

SLES243G –JULY 2009–REVISED APRIL 2013

www.ti.com

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 Frequency Rate

(ITU-R BT.601) per Line Frame

(MHz) (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 I

C 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 Any 1 of 4 Ch Any 1 of 4 Ch Any 1 of 4 Ch

1-Ch Half-D1 n/a 02h 27 Any 1 of 4 Ch Any 1 of 4 Ch Any 1 of 4 Ch Any 1 of 4 Ch

1-Ch CIF n/a 03h 27 Any 1 of 4 Ch Any 1 of 4 Ch Any 1 of 4 Ch 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.

Submit Documentation Feedback

Product Folder Links: TVP5158 TVP5157 TVP5156