STV8237 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STV8237

Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders

STMicroelectronics 

STV82x7

HP_L_VOLUME_MSB

Address: E6h

Type: R/W

Bit 7

Bit 6

Bit 5

Register Description

Bit 4

Bit 3

HP_L_VOLUME_MSB[7:0]

Bit 2

Register List

Bit 1

Bit 0

Bit Name

HP_L_VOLUME_

MSB[7:0]

Reset

Function

1001

1000

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

MSB in differential mode.

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

HP_L_VOLUME_LSB

Address: E7h

Type: R/W

Bit 7

0

Bit 6

0

Bit 5

0

Register Description

Bit 4

0

Bit 3

0

Bit 2

0

Bit 1

Bit 0

HP_L_VOLUME_LSB[1:0]

Bit Name

Bits[7:2]

HP_L_VOLUME_

LSB[1:0]

Reset

Function

000000 Reserved.

00 HP 10 bits volume Left channel 2 LSB in independent mode or HP 10 bits Left and Right volume 2

LSB in differential mode.

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

The volume value is defined by the following formula:

Vol (dB) = Decimal value of HP_L_VOLUME_MSB x 0.5 + Decimal value of HP_L_VOLUME_LSB x 0.125 - 116 dB

(each step is 0.125 dB).

HP_R_VOLUME_MSB

Register Description

Address: E8h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

HP_R_VOLUME_MSB[7:0]

Bit 2

Bit 1

Bit 0

Bit Name

Reset

Function

HP_R_VOLUME_

MSB[7:0]

0000000 HP 10 bits volume Right channel 8 MSB in independent mode or HP 10 bits Left and Right balance

0 8 MSB in differential mode.

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

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