SC14CVMDECT datasheet(18/57 Pages) DIALOG

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Datasheet

Revision 3.0

28-Jul-2015

CFR0011-120-00-FM Rev 5

18 of 57

SC14CVMDECT SF

Cordless Voice Module

FINAL

4.5 PP AUDIO MODES

The PP audio handling consists of four audio states

(see Figure 14). In these states the audio subsystem is

configured for a certain audio mode:

1. Idle mode (not relevant for microphone configu-

ration)

2. Earpiece mode (Handset speaker)

3. Handsfree or Speakerphone mode

4. Headset mode

Selection between the modes is done via API calls; see

document reference [2].

The Alert state is for tone playing and is entered auto-

matically when tones are played using the API calls.

The Alert state can originate from idle, earpiece,

handsfree or headset mode.

4.5.1 Power management

To minimize the current consumption the PP will shut

down all codec amplifiers in Idle mode. This means

that all reference voltages in the analog front-end will

be disabled. This feature can be disabled in the VES if

the reference voltages for some reasons are needed in

Idle mode.

Figure 13: Handset volume configuration

Figure 14: PP audio modes

Idle

Earpiece

Audio

Handsfree

Audio

API_PP_ AUDIO_SET_ MODE_ REQ

(API_ AUDIO_ MODE_ EARPIECE)

API_PP_ AUDIO_SET_ MODE_ REQ

(API_ AUDIO_ MODE_ EARPIECE )

API_PP_ AUDIO_SET_ MODE_ REQ

(API_ AUDIO_ MODE_ HANDSFREE )

Headset Audio

API_PP_ AUDIO_SET_ MODE_ REQ

(API_ AUDIO_ MODE_ HEADSET )

API_PP_ AUDIO_SET_ MODE_ REQ

(API_ AUDIO_ MODE_ EARPIECE )

API_PP_ AUDIO_SET_ MODE_ REQ

(API_ AUDIO_ MODE_ HEADSET)

API_PP_ AUDIO_SET_ MODE_ REQ

(API_ AUDIO_ MODE_ EARPIECE )

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