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CC8520是一款双通道的无线音频传输芯片，主要应用于无线耳机，无线音响系统。
描述
The PurePath? Wireless platform is a cost-effective and low-power solution optimized for wireless transmission of high-quality digital audio.
The CC85xx includes a robust built-in wireless audio transmission protocol and can control selected external audio devices. Utilizing numerous coexistence mechanisms allows the CC85xx to avoid interfering with, or being interfered by other 2.4 GHz radio systems.
The CC85xx operates autonomously, and can be used with or without an external MCU. An external host processor can be connected through SPI and control some aspects of its operation. The CC85xx interfaces easily with other TI audio ICs and DSPs (using I2S and DSP/TDM interfaces). More details can be found in the CC85xx Family User Guide.
特性
Built-in Audio Protoco
CD-Quality Uncompressed Audio
Excellent Robustness and Co-Existence Through Multiple Techniques
Adaptive Frequency Hopping
Forward ErrorCorrection
Buffering and Retransmission
Error Concealment
Optional High Quality Audio Compression
No Software Development Needed When Used in Autonomous Mode
External System
Can be Used Autonomously, or can be Controlled by an
External Host MCU for Greatest Flexibility
Seamless Connection and Control of External Audio Codecs, DACs/ADCs and Digital Audio Amplifiers
Using I2S and I2C
HID Functions Like Power Control, Pairing, Volume Control,
Audio Channel Selection eand so on. Can be Mapped to I/Os
RoHS Compliant 6 mm x 6 mm QFN-40 Package
RF Section
5 or 2 Mbps Over-the-Air Data Rate
Bandwidth-Efficient Modulation Format
Excellent Link budget with Programmable Output Power
up to +3.5 dBm and –83 or –86 dBm Sensitivity
Seamless Support for CC2590 Range Extender (+11 dBm Output Power,
–87 dBm Sensitivity)
Suited for Systems Targeting Compliance with Worldwide
Radio Frequency Regulations: ETSI EN 300 328 and EN 300 440 class 2
(Europe)FCC CFR47 Part 15 (US) and ARIB STD-T66 (Japan)
Digital Audio Support
Digital I2S Audio Interface Supports 1 or 2
Audio Channels for the CC8520 and 1 to 4 Audio Channels for
the CC8530 at Sample Rates of 32, 40.275, 44.1 and 48 kHz, and Supports 16 and 24 bit Word-Widths
Digital I2S Audio Interface Supports 1 or 2 Audio Channels
for the CC8520 and 1 to 4 Audio Channels for the CC8530 at Sample Rates
of 32, 40.275, 44.1 and 48 kHz, and Supports 16 and 24 bit Word-Widths
Audio Latency Down to 10.7 ms
Data Side-Channel Allows Data to be Sent Alongside the Audio
Between External Host Processors
USB
Full-Speed USB Audio Device
USB Basic Audio Device Class: HT1, HS1 and MT topologies
(Headphone, Headset and Microphone)
USB Audio Device Class
Basic USB HID Device Class Support for Remote Control, Mouse
and Keyboard Functionality
Autonomous Operation Only
Development Tools
PC-Based PurePath? Wireless Configurator for CC85xx Configuration
CC85xx Family User Guide
CC85XXDK Audio Development Kit
CC85XXDK-HEADSET Development Kit