User's Manual

AVNERA CORPORATION | 16505 NW BETHANY COURT SUITE 100 | BEAVERTON, OREGON 97006, U.S.A. | MAIN +1.503.718.4100 | FAX [phone] | WWW.AVNERA.COM
AVNERA PROPRIETARY & CONFIDENTIAL | PROVIDED UNDER NDA
General Description
Every consumer wants to be free from wires,
but system designers could never find a low-
cost, 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 modules offer a low-touch,
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 AudioMagic technologies provide
breakthrough wireless audio functionality with
point-to-multipoint transport of uncompressed
stereo PCM audio data from a single
AVMD7300 or AVMD7300 sender and a total
of up to four simultaneous AVMD7300
listeners.
Modules based upon Avnera’s next generation
AudioMagic silicon AV7300 incorporate
enhanced error concealment, low audio jitter,
low latency, reduced power consumption and
digital audio interface for the receiver.
Applications
9 Wireless audio transmitter for portable
audio player
9 Wireless speakers
o Rear/surround
o Subwoofer
Ordering Options
AVMD7300RX-DHNW: Digital audio-in, normal range,
wire antennas
Features
9 Uncompressed audio, point to multipoint
capable (1 to 4)
9 Digital Audio interface
9 Digital audio path SNR: 106 dB (1 to 4) , 48
kHz sampling rate Dual Subcarrier Mode
9 Sub 1 microsecond audio jitter end to end
9 Less than 16 ms fixed audio latency
9 15m range
9 Diversity antennas for multipath and fading
mitigation
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: 2mm header supports vertical or
horizontal mounting (Contact Avnera for
other options)
9 Compatible with AVMD7300 modules
9 Auto-search/synch and dynamic channel
selection
9 Sample rate converter: 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
VoiceMagic™ Module Datasheet
Point-to-Multipoint AVMD7300 Receiver for
Wireless Audio Systems, based on Avnera’s AV7300 IC