WM8994ECSSLASHR datasheet(142/363 Pages) CIRRUS

142 / 363 page

WM8994

142

Rev 4.6

SPKOUTL_BOOST[2:0]

SPKOUTL_BOOST

SPKOUTR_BOOST

000 = 1.00x (+0dB)

SPKGNDn

SPKVDDn/2

SPKVDDn

Signal x BOOST

SPKLVOL[6:0]

VMID

AVDD1

Signal x BOOST is

automatically

centred around

SPKVDDn/2

AVDD1

AGND

SPKMIXL

SPKVDD1

SPKGND1

Direct Voice

SPKOUTLP

SPKOUTLN

001 = 1.19x (+1.5dB)

010 = 1.41x (+3.0dB)

100 = 2.00x (+6.0dB)

101 = 2.37x (+7.5dB)

011 = 1.68x (+4.5dB)

110 = 2.81x (+9.0dB)

111 = 3.98x (+12.0dB)

-57dB to +6dB,

1dB steps

SPKOUTR_BOOST[2:0]

SPKRVOL[6:0]

AVDD1

AGND

SPKMIXR

SPKVDD2

SPKGND2

SPKOUTRP

SPKOUTRN

-57dB to +6dB,

1dB steps

AGND

Figure 35 Speaker Output Configuration and AC Boost Operation

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R35 (0023h)

SPKMIXR

Attenuation

SPKOUT_CLASSAB

Speaker Class AB Mode Enable

0 = Class D mode

1 = Class AB mode

R37 (0025h)

ClassD

5:3

SPKOUTL_BOOST

[2:0]

000

(1.0x)

Left Speaker Gain Boost

000 = 1.00x boost (+0dB)

001 = 1.19x boost (+1.5dB)

010 = 1.41x boost (+3.0dB)

011 = 1.68x boost (+4.5dB)

100 = 2.00x boost (+6.0dB)

101 = 2.37x boost (+7.5dB)

110 = 2.81x boost (+9.0dB)

111 = 3.98x boost (+12.0dB)

2:0

SPKOUTR_BOOST

[2:0]

000

(1.0x)

Right Speaker Gain Boost

000 = 1.00x boost (+0dB)

001 = 1.19x boost (+1.5dB)

010 = 1.41x boost (+3.0dB)

011 = 1.68x boost (+4.5dB)

100 = 2.00x boost (+6.0dB)

101 = 2.37x boost (+7.5dB)

110 = 2.81x boost (+9.0dB)

111 = 3.98x boost (+12.0dB)

WM8994ECS/R Datasheet(PDF) 142 Page - Cirrus Logic

WM8994ECS/R Datasheet(HTML) 142 Page - Cirrus Logic

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