STA310 datasheet(23/90 Pages) STMICROELECTRONICS

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STA310

ables to configure which channels to output on PCM data. This is done through the register PL_DWN.

An auto-balance feature is available and activated through PL_AB register. The delay on surround channel is

configurable thanks to the LSDLY register (while resetting the RSDLY register).

The bass redirection is performed after the Pro Logic decode. The same bass redirection configuration than

those available in non-Pro Logic modes can be used except that the surround channels will not be added to the

bass redirection. In the case of AC-3 or MPEG the STA310 is therefore capable of first decoding the AC-3 or

MPEG stream then performing the Pro Logic decode.

4.7.2 Others

- Karaoke system

- Bass Management + Volume Control

-Deemphasis

- DC Remove

4.8 How to choose a decoder

To set up the device you have to select two registers.

The first one is DECODESEL for Audio data type,

The second one is STREAMSEL for Transport data type,

The STREAMSEL can be set-up as follows:

0= PES

1= PES DVD Video

2= Packet MPEG1

3= Elementary stream or IEC.60958

4= reserved

5= IEC.61937

6= PES DVD Audio

So the possible configurations on listed in the following table:

Table 6. Possible configurations:

STREAMSEL

DECODESEL

MODE

MPEG2 PES carrying Dolby Digital (ATSC)

MPEG2 PES carrying MPEG1 frames

MPEG2 PES carrying MPEG2 frames

MPEG2 PES carrying Dolby Digital frames for DVD Video

MPEG2 PES carrying MPEG2 frames for DVD Video

MPEG2 PES carrying Linear PCM frames for DVD Video

MPEG1 packet carrying MPEG1 frames

Dolby Digital frame elementary streams

MPEG1 frame elementary streams

MPEG2 frame elementary streams

Stereo PCM (16bits samples)

Pink Noise Generator

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