WM8510GEDSSLASHV datasheet(42/81 Pages) WOLFSON

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WM8510

Production Data

PD Rev 4.1 December 2006

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

SPKZC

Speaker Volume control enable:

1 = Change gain on zero cross only

0 = Change gain immediately

SPKMUTE

Speaker output mute enable

0=Speaker output enabled

1=Speaker output muted (VMIDOP)

R54

Speaker

volume

control

5:0

SPKVOL

[5:0]

111001

(0dB)

Speaker Volume Adjust

111111 = +6dB

111110 = +5dB

… (1.0 dB steps)

111001=0dB

…

000000=-57dB

Table 32 SPKOUT Volume Control

ZERO CROSS TIMEOUT

A zero-cross timeout function is also provided so that if zero cross is enabled on the input or output

PGAs the gain will automatically update after a timeout period if a zero cross has not occurred. This

is enabled by setting SLOWCLKEN. The timeout period is dependent on the clock input to the digital

and is equal to 2

21 * input clock period.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

Additional

control

SLOWCLKEN

Slow clock enable. Used for both the

jack insert detect debounce circuit and

the zero cross timeout.

0 = slow clock disabled

1 = slow clock enabled

Table 33 Timeout Clock Enable Control

MONO MIXER AND OUTPUT

The MONOOUT pin can drive a 16

Ω or 32Ω headphone or a line output or be used as a DC

reference for a headphone output (see Headphone Output section). It can be selected to drive out

any combination of DAC, Bypass (output of input BOOST stage) and MIC2. The Bypass path has

the option of 0dB or -10dB attenuation, selected by the MONOATTN register bit.

This output is

enabled by setting bit MONOEN.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

SPKATTN

0=off

1=-10dB

R40 Attenuation

Control

MONOATTN

0=off

1=-10dB

Table 34 Sidetone Attenuation Control

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