CS43L42

DS481PP2

17

4.1.3 POPGUARD® TRANSIENT CONTROL (POR)

Default - 1

0 - Disabled

1 - Enabled

Function:

quiescent voltage during power-on or power-off when this function is enabled. Please see section 6.5 for

implementation details.

4.1.4 POWER DOWN HEADPHONE AMPLIFIER (PDNHP)

Default = 0

0 - Disabled

1 - Enabled

Function:

The headphone amplifier will independently enter a low-power state when this function is enabled.

4.1.5 POWER DOWN LINE AMPLIFIER (PDNLN)

Default = 0

0 - Disabled

1 - Enabled

Function:

The line output amplifier will independently enter a low-power state when this function is enabled.

4.1.6 POWER DOWN (PDN)

Default = 1

0 - Disabled

1 - Enabled

Function:

The entire device will enter a low-power state when this function is enabled, and the contents of the control

registers are retained in this mode. The power-down bit defaults to ‘enabled’ on power-up and must be

disabled before normal operation will begin.