WM8960_11 datasheet(34/91 Pages) WOLFSON

No de pièce	WM8960

Description	Stereo CODEC with 1W Stereo Class D Speaker Drivers and Headphone Drivers for Portable Audio Applications

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Fabricant	WOLFSON [Wolfson Microelectronics plc]

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WM8960

Production Data

w

PD, October 2011, Rev 4.1

34

REGISTER

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R6 (06h)

ADC and DAC

Control (2)

6:5

DACPOL[1:0]

00

DAC Polarity Control:

00 = Polarity not inverted

01 = DAC L inverted

10 = DAC R inverted

11 = DAC L and R inverted

R23 (17h)

Additional

Control (1)

4

DMONOMIX

0

DAC Mono Mix

0 = Stereo

1 = Mono (Mono MIX output on

enabled DACs)

Table 18 DAC Mono Mix and Phase Invert Select

3D STEREO ENHANCEMENT

The WM8960 has a digital 3D enhancement option to artificially increase the separation between the

left and right channels. This effect can only be used for playback, not for record.

The 3D enhancement function is activated by the 3DEN bit, and the 3DDEPTH setting controls the

degree of stereo expansion. Additionally, one of four filter characteristics can be selected for the 3D

processing, using the 3DUC and 3DLC control bits.

REGISTER

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R16 (10h)

3D enhance

6

3DUC

0

Upper Cut-Off Frequency

0 = High (Recommended for

fs>=32kHz)

1 = Low (Recommended for

fs<32kHz)

5

3DLC

0

Lower Cut-Off Frequency

0 = Low (Recommended for

fs>=32kHz)

1 = High (Recommended for

fs<32kHz)

4:1

3DDEPTH

[3:0]

0000

3D Stereo Depth

0000 = 0% (minimum 3D effect)

0001 = 6.67%

....

1110 = 93.3%

1111 = 100% (maximum 3D effect)

0

3DEN

0

3D Stereo Enhancement Enable

0 = Disabled

1 = Enabled

Table 19 3D Stereo Enhancement Function

When 3D enhancement is enabled it may be necessary to attenuate the signal by 6dB to avoid

limiting. This is a user-selectable function, enabled by setting DACDIV2.

REGISTER

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R5 (05h)

ADC and DAC

control (1)

7

DACDIV2

0

DAC 6dB attenuate enable

0 = disabled (0dB)

1 = -6dB enabled

Table 20 DAC 6dB Attenuation Select

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WM8960 Fiches technique(PDF) 34 Page - Wolfson Microelectronics plc

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