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AK7750 Datasheet(PDF) 3 Page - Asahi Kasei Microsystems

Part No. AK7750
Description  Audio DSP with Built-in Hands-Free Phone Features
Download  77 Pages
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Maker  AKM [Asahi Kasei Microsystems]
Homepage  http://www.akm.com
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AK7750 Datasheet(HTML) 3 Page - Asahi Kasei Microsystems

 
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[ASAHI KASEI]
[AK7750]
[MS0296-E-00]
3
2005/03
Block Diagram
(1) Hands-Free Mode Diagram
D/A
D/A
iFFT
Spectrum
Subtraction
FFT
ARM Processor
Noise Canceller
Tel. Line
RAM
ROM
Digital
OUT(8ch)
µP
I/F
EEPROM
Digital
IN(8ch)
PLL
Filter
+
Echo
Canceller
VAD
Filter
voice
SW
VAD
Tel. Line
DSP Block
I/F
Mic.
Speaker
Filter
Ctrl.
A/D
A/D
Block Diagram
(2) Audio Surround Mode Diagram
D/A
D/A
iFFT
Spectrum
Subtraction
FFT
ARM Processor
Noise Canceller
Audio_in
RAM
ROM
Digital
OUT(6(8))ch)
µP
I/F
EEPROM
Digital
IN(8(10))ch)
PLL
Sound processing
(EQ,Surround,…)
VAD
voice
SW
Speaker
DSP Block
I/F
Audio_in
Speaker
A/D
A/D
OFF
Block Diagram


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