Datasheet > CX20662

CX20662

更新时间： 2024-11-06 12:24:35

品牌	Logo	应用领域
科胜讯 - CONEXANT		/
页数	文件大小	规格书
2页	215K
描述
Line echo suppression

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中文翻译

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数据手册

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CX20662 数据手册

Audio

Speakers-on-a-Chip

Speakers-on-a-Chip Wideband Full Duplex

Mono Speakerphone SoC

CX20662

Conexant’s portfolio includes a comprehensive suite of semiconductor

solutions for communications and consumer applications.

The CX20662 speakerphone System-on-Chip (SoC) is one of Conexant’s

Speakers-on-a-Chip (SPoC) solutions with the proprietary low cost on-chip

Digital Signal Processor (DSP) performing wideband full-duplex hands-free

speakerphone applications. The SPoC integrates the functionality of a DSP,

audio codec, programmable microphone boost, and Class-D amplifier in one

cost-effective 40-pin Quad Flat-No Lead (QFN) package.

The device features dual integrated codecs, a hardware Acoustic Echo

Cancellation (AEC) DSP, Line Echo Supression (LES), Noise Reduction (NR),

microphone boost, headphone driver and Class-D amplifier. The device

eliminates the need for an external speaker amplifier and has low external Bill

of Materials (BOM) for speaker output. This turnkey solution can be integrated

with any analog audio system to deliver high quality hands-free speakerphone

function.

Applications

Distinguishing Features

•ꢀ Intercomꢀsystemsꢀ

•ꢀ TelepresenceꢀWebcamꢀwithꢀspeakerphone

•ꢀ Fullꢀduplexꢀhands-freeꢀtelephony

• Wideband acoustic echo cancellation DSP

engine exceeding TIA 920 requirement

• Line echo suppression

UART

EEPROM

GPIO

• Integrated 600mW Class-D amplifier,

filterless output wth selectable gains

• AEC DSP tuning parameters

• Voice activity detection with comfort

noise

Speakerphone

On/Off

32 Ω

Class-AB

Digital Volume

Control

DAC

Analog Out

Analog In

DSP

(AEC, NR, LES)

Low Res

ADC

Analog Volume

Potentiometer

ADC

• Speech-trained acoustic echo cancellation

• Microphone noise reduction filter

• Power saving mode

MIC Mute

MIC LED

Boost

• Fast convergence trained from half duplex

to full duplex

Jack Sense

Speaker Mute

• UART MCU interface

Speaker LED

Mono Line Out or

Mono Headphone

Speakers

Microphone

CX20662 Block Diagram

Part Number CX20662

Description Speakers-on-a-Chip Wideband Full

Duplex Mono Speakerphone SoC

中文翻译

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