APPLICATIONS

- Wireless high-quality digital audio

- Wireless point-to-point audio link

- Wireless (USB) headphones / headsets

- Wireless (USB) loudspeakers

- Wireless (USB) microphones

- Wireless 2.1 speaker systems

- CC852x supports up to 2 channels

- CC853x supports up to 4 channels

- CC85x1 supports USB

FEATURES

Built-in audio protocol

- CD-quality uncompressed audio

- Excellent robustness and co-existence

through multiple techniques

- Adaptive Frequency Hopping

- Forward Error Correction

- 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

etc. can be mapped to I/Os

- RoHS compliant 6mm x 6mm 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/-86

dBm sensitivity

- Seamless support for CC2590 range

extender (+11dBm output power, -87dBm

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

- USB audio support for 32, 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

DESCRIPTION

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 [2].