User's Manual

Model Name : R3
Product Description.
The Module is an OEM module (35x35mm) based on the SMSC DARR83. It is an uncompressed
wireless digital audio transceiver operating in the 2.4GHz, 5.2GHz and 5.8GHz bands. The wireless
audio link supports up to 4 stereo audio streams and comes together with additional features such as:
data encryption, pairing functionality, bi-directional control data messages, low power audio snooze
mode, WLAN detection and Automatic Frequency Allocation. The DARR83 chip itself provides the
basic functions of Audio Processing and buffering, Data Link Layer and Physical Layer. The module
integrates all functionality for a wireless digital audio connection, comprising:
D
ARR83 Wireless Audio Processor
2.4GHz/ 5.
2GHz/ 5.8 GHz RF Transceiver
Embedded Antennas
Digital audio interfaces (I
2
S and/or S/PDIF)
I
2
C control interface
26 pins interface connector (FFC) for power, digital audio and control interface and GPIOs
Built-in 1MB SPI interface Flash 3V 4KB uniform sector
RF Frequency Bandwidth.
2.4GHz: 2400 – 2483.5MHz
5.2GHz: 5150 – 5250MHz
5.8GHz: 5725 – 5875MHz.
RF Performance.
For 2.4GHz application (VCC=3.3V, 25°C)
Parameter Min Typ. Max Units
RF Frequency Range 2400 2483.5 MHz
Number of
RF -Channels
Carries in the spectrum 3
Transmission Power 14 dBm
Frequency
(dynamic or fixed
allocation)
Ch1 2412 MHz
Ch2 2438
Ch3 2464
Channel Spacing 26 MHz

Summary of content (8 pages)