STV82X8 datasheet(99/157 Pages) STMICROELECTRONICS

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STV82x8

PRO_LOGIC2_LEVEL

Dolby ProLogic 2 Input Level

NOISE_GENERATOR

Pink Noise Generator

Bit Name

Reset

Function

Bit 7

Reserved.

PL2_C_WIDTH[2:0] 000

ProLogic 2 center width:

000:

0, no spread

100:

001:

101:

010:

110:

011:

111:

90, phantom

Bit 3

Reserved.

PL2_DIMENSION [

2:0]

000

ProLogic 2 dimension:

000:

-3, most surround

100:

001:

-2

101:

010:

-1

110:

3, most center

011:

0, neutral

111:

not used

Address: B3h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

PL2_LEVEL

Bit Name

Reset

Function

PL2_LEVEL[7:0]

0000000

Input Gain attenuation:

0000 0000:

0 dB

0000 0001:

-0.5 dB

...

1111 1111:

-127.5 dB

Address: B4h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

10_DB_ATTEN

UATE

SRIGHT_NOIS

SLEFT_NOISE

SUB_NOISE

CENTER_NOI

RIGHT_NOISE LEFT_NOISE

NOISE_ON

Bit Name

Reset

Function

10_DB_ATTENUAT

noise is output with full range

noise is output with a 10dB attenuation

SRIGHT_NOISE

Generates noise on LS right surround output

SLEFT_NOISE

Generates noise on LS left surround output

SUB_NOISE

Generates noise on LS subwoofer output

STV82X8 Datasheet(PDF) 99 Page - STMicroelectronics

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