STV8237T datasheet(122/149 Pages) STMICROELECTRONICS

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STV82x7

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The volume value is defined by the following formula:

Vol (dB) = Decimal value of LS_SR_VOLUME_MSB x 0.5 + Decimal value of LS_SR_VOLUME_LSB x 0.125 - 116 dB

(each step is 0.125 dB).

LS_MASTER_VOLUME_MSB

LS_MASTER_VOLUME_LSB

The volume value is defined by the following formula:

Vol (dB) = Decimal value of LS_MASTER_VOLUME_MSB x 0.5 + Decimal value of LS_MASTER_VOLUME_LSB x

0.125 - 116 dB (each step is 0.125 dB).

LS_SR_VOLUME_

LSB[1:0]

LS 10 bits volume Right channel 8 MSB in independent mode or LS 10 bits surround Left and Right

balance 2 LSB in differential mode.

See Figure 19: Volume Control on page 36 or Figure 20: Differential Balance on page 37.

Address: E4h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

LS_MASTER_VOLUME_MSB[7:0]

Bit Name

Reset

Function

LS_MASTER_

VOLUME_MSB[7:0]

1110100

LS 10 bits volume Master channel 8 MSB

See Figure 19: Volume Control on page 36 for range values.

Address: E5h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

0000

LS_MASTER_VOLUME

_LSB[1:0]

Bit Name

Reset

Function

Bits[7:2]

000000 Reserved.

LS_MASTER_

VOLUME_LSB[1:0]

LS 10 bits volume Master channel 2 LSB

See Figure 19: Volume Control on page 36 for range values.

Bit Name

Reset

Function

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