Avnera AVRB7201 User Manual

AVRB7201

Wireless Audio USB Dongle

General Description

Every consumer wants to be free from wires,
but system designers could never find a low­cost, high-quality, easy-to-use wireless audio
solution for speakers, microphones,
headphones and headsets on the market.

Avnera’s proprietary wireless system changes
the game by taking a new approach to
wireless audio. The wireless protocol was
designed from the ground up and delivers
uncompressed stereo audio over the air
without interference problems.

Avnera’s wireless USB dongle offers a low­touch, easy-to-integrate wireless audio
solution and enable fast time to market by
already solving the problem associated with
FCC, antenna tuning and board optimization.

Avnera’s AVRB7201 USB dongle provides
breakthrough wireless audio functionality with
point to point transport of uncompressed
stereo PCM audio data from an AVRB7201
sender to an AVMD72x2 listener.

User Guide

Features

9 Uncompressed audio, point to point
9 Forward audio path: stereo 91 dB SNR, 48

kHz sampling rate

9 Reverse voice path: mono 64 dB SNR, 16

kHz sampling rate

9 Support for 10m (typical) range
9 Frequency range: 2.4 GHz ISM band,

continuous dynamic frequency selection

9 Forward error correction coding, error

detection, and audio-specific error
concealment

9 Connector: USB connector
9 One programmable button
9 One programmable LED
9 Auto-search/synch and dynamic channel

selection

9 Low, fixed latency suitable for video lip-

synch

Applications

9 Wireless audio transmitter for wireless

USB headsets and headphones

9 Wireless audio distribution hub for

surround speakers

9 Support for 16, 20, 24, and 32 bit PCM

words at 16, 22.05, 24, 32, 44.1, 48, and 96
kHz

9 General purpose over-the-air (OTA) serial

interface:

9 2 kbps, bi-directional, full duplex
9 Support for meta-data and remote

control commands

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AVRB7201 Dongle User Guide v0p22

AVRB7201 Pin Information

Pin Number Pin Name Type Pin Description

1 VDC Power USB power connection (Vbus)
2 DM Analog USB D- connection
3 DP Analog USB D+ connection
4 GND Ground USB ground connection

Absolute Maximum Ratings

Absolute Maximum Ratings (AMR) are stress ratings only. AMR corresponds to the maximum value that can be applied without leading
to instantaneous or very short-term unrecoverable hard failure (destructive breakdown). Stresses beyond those listed under AMR may
cause permanent damage to the device.

Functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Range” is
not implied. Exposure to absolute-maximum-rated conditions for extended periods may adversely affect device reliability.

Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test
conditions specified.

CONDITION MIN MAX

USB VDC Supply Voltage Input -0.3V 6.5V
Operating Temperature -40ºC +85ºC
Storage Temperature -40ºC +100ºC

Static Discharge Voltage – HBM
*

1000V

*Terminology: HBM => ESD human body model

Recommended Operating Range

PARAMETER MIN TYP MAX UNIT

USB VDC Supply Voltage Input 4.5 5.0 5.5 V
Ambient Temperature (TA) -20 70 ºC

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 2 AVNERA PROPRIETARY & CONFIDENTIAL