WM8945ECSSLASHR datasheet(51/169 Pages) WOLFSON

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Production Data

WM8945

PD, May 2011, Rev 4.1

OUTPUT SIGNAL PATHS ENABLE

Each analogue output pin can be independently enabled or disabled using the register bits described

in Table 29. The speaker output PGAs and mixers can also be controlled.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R3 (03h)

Power

management

OUTL_ENA

LINEOUTL enable

0 = Disabled

1 = Enabled

SPKR_PGA_ENA

Speaker Right PGA enable

0 = Disabled

1 = Enabled

SPKL_PGA_ENA

Speaker Left PGA enable

0 = Disabled

1 = Enabled

SPKR_SPKVDD_

ENA

SPKOUTR enable

0 = Disabled

1 = Enabled

Note that SPKOUTR is also

controlled by SPKR_OP_ENA.

When powering down SPKOUTR,

the SPKR_SPKVDD_ENA bit

should be reset first.

SPKL_SPKVDD_

ENA

SPKOUTL enable

0 = Disabled

1 = Enabled

Note that SPKOUTL is also

controlled by SPKL_OP_ENA.

When powering down SPKOUTL,

the SPKL_SPKVDD_ENA bit should

be reset first

SPKR_OP_ENA

SPKOUTR enable

0 = Disabled

1 = Enabled

Note that SPKOUTR is also

controlled by

SPKR_SPKVDD_ENA. When

powering up SPKOUTR, the

SPKR_OP_ENA bit should be

enabled first.

SPKL_OP_ENA

SPKOUTL enable

0 = Disabled

1 = Enabled

Note that SPKOUTL is also

controlled by SPKL_SPKVDD_ENA.

When powering up SPKOUTL, the

SPKL_OP_ENA bit should be

enabled first

SPKR_MIX_ENA

Right speaker output mixer enable

0 = Disabled

1 = Enabled

SPKL_MIX_ENA

Left speaker output mixer enable

0 = Disabled

1 = Enabled

Table 29 Output Signal Paths Enable

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