CX20708 Super Wideband Voice Input Processor SoC

Complies with Skype Certification requirements for TV solutions

Conexant's CX20708 is industry's

first dedicated Super Wideband

Voice Input Processor SoC for

Telepresence and Speech

Recognition applications. This highly

integrated SoC features high-fidelity

16-bit ADC, microphone pre-amp,

Asynchronous Sample Rate

Converter, Sync Buffer, and our

award-winning Digital Signal

Processor.

The included advanced super-

wideband voice processing

algorithms deliver a crisp clear, full-

duplex, low-latency, audio

experience, requiring as little as two

matched high-sensitivity

unidirectional microphones. The

are ideal for integration in the High

Definition Camera module or directly

inside the Television/ Set-Top-Box.

The CX20708 is a turnkey, single-

chip solution that compensates for

microphone self-noise, eliminates

ambient noise, and maximizes long

distance voice pick-up, all

withoutloading the host CPU. This

allows the system designer to

achieve a consistent level of voice

performance cross software

applications and fast to market.

Conexant offers complete an

Evaluation Kit (EVK), including the

EVK board, data sheet, reference

design schematics, AVL, and sample

silicon.

Applications

Telepresence/Unified

Communication Device

Speech Recognition applications

Key Features

Benefits

Flexible topology to match with the host

system

Integrated Super Wideband Voice Processing

Higher performance voice quality

Far Field Pickup Microphone and Beam

Forming

Only require minimum of 2 microphones for

long range speakerphone and speech

recognition usage

Integrated microphone pre-amp, ADC, and

DSP

Single chip voice input

Sub-band Acoustic Echo Cancellation

Enable full duplex speech recognition.

Part Number CX20708

Description Super Wideband Voice

Input Processor SoC