STV8237 datasheet(120/156 Pages) STMICROELECTRONICS

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STV82x7

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HP_BASS_GAIN

Headphone Bass Gain

Note:

With positive bass/treble settings, internal clipping may occur even with an overall volume of less

than 0 dB. This will lead to a clipped output signal. Therefore, it is not recommended to set bass/

treble bands to a value that, in conjunction with volume, would result in an overall positive gain.

HP_TREBLE_GAIN

Headphone Treble Gain

Note:

With positive bass/treble settings, internal clipping may occur even with an overall volume of less

than 0 dB. This will lead to a clipped output signal. Therefore, it is not recommended to set bass/

treble bands to a value that, in conjunction with volume, would result in an overall positive gain.

Bit Name

Reset

Function

Bits [7:1]

0000000 Reserved.

HP_EQ_ON

Bass-Treble for headphone Enable

0: Bass-Teble is disabled

1: Bass-Teble is enabled (Default)

Address: D2h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

HP_BASS_GAIN[7:0]

Bit Name

Reset

Function

HP_BASS_

GAIN[7:0]

00000000 Gain Tuning of Headphone Bass Frequency

Gain may be programmed within a range between +12 dB and -12 dB in steps of 0.25 dB.

Programmable values are listed in Table 31.

Address: D3h

Type: R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

HP_TREBLE_GAIN[4:0]

Bit Name

Reset

Function

HP_TREBLE_

GAIN[7:0]

00000000 Gain Tuning of Headphone Treble Frequency

Gain may be programmed within a range between +12 dB and -12 dB in steps of 0.25 dB.

Programmable values are listed in Table 31.

STV8237 Datasheet(PDF) 120 Page - STMicroelectronics

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