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SC14CVMDECT-SF データシート(PDF) 23 Page - Dialog Semiconductor

部品番号 SC14CVMDECT-SF
部品情報  Cordless Voice Module
PDF  57 Pages
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メーカー  DIALOG [Dialog Semiconductor]
ホームページ  http://www.dialog-semiconductor.com/
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SC14CVMDECT-SF データシート(HTML) 23 Page - Dialog Semiconductor

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Datasheet
Revision 3.0
28-Jul-2015
CFR0011-120-00-FM Rev 5
23 of 57
© 2013 Dialog Semiconductor
SC14CVMDECT SF
Cordless Voice Module
FINAL
4.12.4 Start position of FSC
The PCM interface supports the following options:
• The FSC pulse starts 1 data bit before
the 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.
4.12.5 PCM clock frequency
The PCM interface supports the following options in
master mode:
• 1.152 MHz
• 2.304 MHz
• 4.608 MHz
• 1.536 MHz
4.12.6 PCM data mode
The PCM interface supports the following PCM data
formats:
• Linear PCM, 8 kHz sample rate.
Used for narrowband calls (G.726).
• Linear PCM, 16 kHz sample rate.
Used for wideband calls (G.722).
• G.711 – A-law, 8 kHz sample rate.
Used for narrowband calls (G.726).
•G.711 –
-law, 8 kHz sample rate.
Used for narrowband calls (G.726).
• Compressed wideband using A-law, 16 kHz sample
rate. The 16 bit PCM data is encoded as two 8 bit
audio samples if 8 kHz frame sync is used. Used for
wideband calls (G.722).
• Compressed wideband using
-law, 16 kHz sample
rate. The 16 bit PCM data is encoded as two 8 bit
audio samples if 8 kHz frame sync is used. Used for
wideband calls (G.722).
Figure 21: PCM interface formats
Channel 3
Channel 3
Channel 2
Channel 2
Channel 1
Channel 1
Channel 0
Channel 0
DSP_PCM_CTRL_REG[5,4,3] = 000
DSP_PCM_CTRL_REG[5,4,3] = 010
DSP_PCM_CTRL_REG[5,4,3] = 100
DSP_PCM_CTRL_REG[5,4,3] = 101
DSP_PCM_CTRL_REG[5,4,3] = 111
DSP_PCM_CTRL_REG[5]=0
DSP_PCM_CTRL_REG[5]=1
PCM Slave mode
D15
D8 D7
D0
PCM Master
DSP_PCM_CTRL_REG[5,4,3] = 001
DSP_PCM_CTRL_REG[5,4,3] = 011
DSP_PCM_CTRL_REG[5,4,3] = 110
PCM_CLK
PCM_CLK
PCM_DI PCM_DO
PCM_FSC (input)
PCM_FSC (input)
PCM_FSC
PCM_FSC
PCM_FSC
PCM_FSC
PCM_FSC
PCM_FSC
PCM_FSC
PCM_FSC



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