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CX20873 데이터시트(PDF) 1 Page - Synaptics Incorporated.

부품명 CX20873
상세설명  Full duplex stereo I2S/PCM
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제조업체  CONEXANT [Synaptics Incorporated.]
홈페이지  https://www.synaptics.com/
Logo CONEXANT - Synaptics Incorporated.

CX20873 데이터시트(HTML) 1 Page - Synaptics Incorporated.

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CX20873 Dolby Headphone Decoder IC
Features
High Speed USB2.0 Device,
supporting up to eight endpoint
Quad Digital microphone PDM
interface
SPDIF Transmitter and SPDIF
receiver
Full duplex stereo I2S/PCM
Six 32-bit timers/counters
Serial peripheral interface (SPI)
Master and Slave
Inter-Integrated Circuit (I2C) Master
and Slave
1 UART interface
Dedicated peripheral and memory-to-
memory DMAs
Interrupt controller
13 FlexIOs fully programmable
through PIC processor
2 sets of Tri-color PWM LED drivers
6 dedicated general-purpose I/Os
(GPIOs),
Debug/JTAG interface and On chip
logic analyzer
On-chip programmable PLLs
Advanced power management
allowing USB suspend mode to meet
2.3 mA using off chip converter
5V/3.3 V
Package 116p Dual Row QFN
Firmware Features
Conexant proprietary algorithms
available for voice and audio
processing
Supports integration of 3rd party
algorithms e.g. Dolby Digital Plus
decoder, Dolby Headphone, Dolby
Prologic, Speech Recognition and
Synthesis
Applications
USB Headset, USB Headphones, Docks
& SoundBar, Gaming Consoles, DVD
players, Automotive, DSP off load
applications in Ultrabooks, Ultrathins, and
more
Part Number CX20873
Description Dolby Headphone
Decoder IC
Overview
The CX20873 device family from Conexant provides a turnkey Dolby Headphone
and Headset solution for customers. Conexant provides optimized implementation
of Dolby Digital Plus Decoder, Dolby Headphone, and Dolby Prologic II algorithms
(royalties applicable).
Dolby Headphone technology allows users to simulate a highly realistic 5.1/7.1
surround sound listening environment from stereo transducer headphones.
CX20873 allows users to combines Dolby Headphone technology with either Pro
Logic IIx or Pro Logic IIz processing while simultaneously decoding multi-channel
encoded streams received from an external source over SPDIF or a USB 2.0
interface.
CX20873 provides a similar turnkey solution for headset customers and includes
Conexant Voice Processing Algorithms coupled with the Dolby algorithms. The
Conexant VPA offers advanced in-band microphone noise reduction, 3D sound
effects, sub-band Acoustic Echo Cancellation, and Automatic Gain Control features.
A Configuration Toolbox allows for fast configuration of the various signal
processing algorithms and optimizes performance.
Block Diagram
PMC
DCDC
PLLs
DMAs
Timers
OCLA
USB2.0 HS
SPI Master
I2C Master
UART
I2C/SPI Slave
PIC, GPIO,
PWM
SPDIF TX
SPDIF RX
Quad Dig. Mic /
PDM
I2S/PCM
32 bit DSP
(CAPE)
X Y P
P SRAM/ROM
X SRAM/ROM
Y SRAM/ROM
JTAG
Bridge


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