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
flexible USB and I
2
S/I
2
C interfaces
Key Features
I
2
S/USB Interface
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.
Benefits
Flexible topology to match with the host
system
Higher performance voice quality
Only require minimum of 2 microphones for
long range speakerphone and speech
recognition usage
Single chip voice input
Part Number CX20708
Description
Super Wideband Voice
Input Processor SoC
Applications
Telepresence/Unified
Communication Device
Speech Recognition applications
Integrated Super Wideband Voice Processing
Far Field Pickup Microphone and Beam
Forming
Integrated microphone pre-amp, ADC, and
DSP
Sub-band Acoustic Echo Cancellation
Enable full duplex speech recognition.
CONEXANT [ CONEXANT SYSTEMS, INC ]
