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CX23102 Datasheet(PDF) 1 Page - Conexant Systems, Inc

Part No. CX23102
Description  USB 1.1/2.0 compliant bus
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Maker  CONEXANT [Conexant Systems, Inc]
Homepage  http://www.conexant.com
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CX23102 Broadcast USB Audio/Video Decoder
Features
USB 1.1/2.0 compliant bus
Support for the following audio
formats: Stereo, Mono, Dual
Language (Mono), Tri Language
(Trivox)
Three I2C master ports (two ports are
provided for a two-tuner design to
isolate I2C transactions to reduce
noise)
Macrovision 1.0 Detection Compliant
Support for the following video
formats: Composite, S-Video, 480i
YPrPb, RBG Packed, YCrCb Packed,
10-bit Packed, and YCrCb/YUY2
Format
Advanced consumer IR functionality
enables systems to receive, learn, and
blast IR signals
High-quality multi-tap horizontal and
vertical image scaler for decoded
video or 4:2:2 sources
I2S out
Auxiliary Phase Locked Loop (PLL)
clock for general use
Integrated analog demodulator
compatible with direct IF tuners
Worldwide audio and video decoding
Automatic video and broadcast audio
standards detection and configuration
Flexible video input MUX supporting
composite, S-Video, and component
inputs with integrated anti-alias
filtering
Integrated sigma-delta stereo audio
ADCs with 4:2 MUX
Audio sample rate converters on all
inputs and outputs
Two MPEG transport stream ports:
Parallel and Serial
Two program stream inputs
accommodating serial or parallel
interfaces
Programmable VBI data slicer for data
services such s closed caption, WSS,
and program guides, such as
GEmstar 1x & 2x
ITU-R BT.656 output port
Demodulator low or high IF for direct
IF tuners
Overview
The CX23102 brings Conexant’s
long heritage of audio and video
capture solutions to systems that
enable universal serial bus
architectures. The CX23102
integrates all the functions
required to perform television and
external
A/V capture on personal
computers or consumer electronic
devices.
The CX23102 decoder enables
the capture of analog and digital
broadcast streams on personal
computers through an integrated Universal Serial Bus (USB) interface. The
device can capture a single analog stream, two simultaneous digital television
transport streams, or a combination of analog and digital programming. In
addition, analog, hybrid and combo configurations may be used in conjunction
with hardware MPEG encoders.
The CX23102 integrates anti-aliasing, noise rejection filters and automatic gain
control (AGC) and also includes an integrated analog IF demodulator
compatible with low IF tuners. Quality video is accomplished by using 10-bit
video ADCs, a full 10-bit video data path, and a horizontal and 5-tap vertical
scaling, hue, brightness, saturation, and contrast controls.
For high-quality audio, the CX23102 has analog to digital converters for stereo
audio capture and a minimum of 16-bit audio resolution through the entire audio
data path which ensures high fidelity audio, whether it comes from the
integrated broadcast audio decoder or the ADCs. The audio path includes an
automatic volume control function and two assignable stereo processing units
for control of volume, three-band equalization, and balance. The level of audio
and video integration provided by the CX23102 removes the need for additional
broadcast audio decoding and processing chips or external sound
demodulation chips. It also reduces the overall bill of materials (BOM) for the
system developer, without compromising audio and video performance.
Part Number CX23102
Description USB Broadcast Audio/
Video Decoder




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