STV8237T datasheet(110/149 Pages) STMICROELECTRONICS

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STV82x7

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STSRND_LEVEL

ST WideSurround Gain Register

OMNISURROUND_CONTROL Register Description

STSRND_TREBLE[1:0] 01

Defines the treble frequency effect for ST WideSurround Sound in Movie or Mono mode (no

effect in Music mode). Programmable values are listed in Table 29.

Table 29: Phase Shifter Center Frequencies

Phase Shifter Center Frequency

BASS_FREQ[1:0]

MEDIUM_FREQ[1:0]

TREBLE_FREQ[1:0]

40 Hz

202 Hz

2 kHz

01 (Default)

90 Hz

416 Hz

4 kHz

120 Hz

500 Hz

5 kHz

160 Hz

588 Hz

6 kHz

Address: C6h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

STSRND_GAIN[7:0]

Bit Name

Reset

Function

STSRND_GAIN[7:0] 10000000

Defines the ST WideSurround Sound component gain in linear scale.

Level (%)

1000 0000 (Default)

100%

0000 0100

3.1%

0111 1111

99.2%

0000 0011

2.3%

0111 1110

98.4%

0000 0010

1.6%

0111 1101

97.6%

0000 0001

0.8%

........

0000 0000

Address: C7h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

LFE

ST_VOICE[1:0]

FRONT_

BYPASS

OMNI_SURND_INPUT_MODE[3:0]

OMNISRND_ON

Bit Name

Reset

Function

LFE

0: Do not use LFE channel

1: Generate LFE channel

Bit Name

Reset

Function

STV8237T Datasheet(PDF) 110 Page - STMicroelectronics

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