SC14CVMDECT-SF datasheet(26/57 Pages) DIALOG

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Datasheet

Revision 3.0

28-Jul-2015

CFR0011-120-00-FM Rev 5

26 of 57

SC14CVMDECT SF

Cordless Voice Module

FINAL

4.12.7 PCM Interface for PP

The SC14CVMDECT SF supports PCM interface func-

tionality to connect to an external audio source/destina-

tion. Refer to document [2] for detailed information.

• PCM interface mode

supports only master mode.

• PCM_FSC frequency

supports 8 kHz and 16 kHz.

• LENGTH of PCM_FSC

The PCM interface supports the following options:

• 1: The length of PCM_FSC pulse is equal to 1

data bit.

• 8: The length of PCM_FSC pulse is equal to 8

data bits.

• 16: The length of PCM_FSC pulse is equal to 16

data bits.

• 32: The length of PCM_FSC pulse is equal to 32

data bits.

• Start position of FSC

The PCM interface supports the following options:

• The FSC pulse starts 1 data bit before MSB bit of

the PCM channel 0 data.

• The FSC pulse starts at the same time as the

MSB bit of the PCM channel 0 data.

• PCM clock

PCM clock is delivered to an external slave PCM

device from SC14CVMDECT SF.

• PCM Data mode

Supports only linear 16 bit PCM.

Figure 26: PCM bus with compressed wideband using A-law/

-law, G726 used on air interface

PCM CLK

16 KHz FSC

PCM in

PCM out

Channel 0

Channel 1

Channel 0

Channel 1

AP_DATA_FORMAT_CWB_ALAW / AP_DATA_FORMAT_CWB_ULAW with 16 kHz frame sync (G.726 on air):

1st frame

PCM CLK

8 KHz FSC

PCM in

PCM out

Channel 0

Channel 1

Channel 0

Channel 1

Channel 0

Channel 1

Channel 0

Channel 1

AP_DATA_FORMAT_CWB_ALAW / AP_DATA_FORMAT_CWB_ULAW with 8 kHz frame sync (G.726 on air):

1st frame

2nd frame

1st frame

2nd frame

1st frame

SC14CVMDECT-SF Datasheet(PDF) 26 Page - Dialog Semiconductor

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