Samsung WISP50S User Manual
Rev0.0
WISP50S Module:
USER Manual
Product Name : Three View Audio Module
Model Name : WISP50S
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1. Product Description
The WISP50S module is a wireless audio module (60X21mm)) based on the SMSC
DARR83. This module can used to build an uncompressed wireless digital audio
transceiver operating in the 2.4GHz, 5.2GHz and 5.8GHz bands.
The wireless audio link supports up to two 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 WISP50S module integrates all functionality for a wireless
digital and analog audio connection, comprising:
2. Features
DARR83 Wireless Audio Processor
2.4GHz/ 5.2GHz/ 5.8 GHz RF Transceiver
Embedded Antennas
Digital audio interfaces (I
Integrated 24 bit stereo Audio DAC + Headphone AMP
Integrated 16 bit Audio ADC + Microphone AMP
Built-in SPI interface Flash
9 pins interface connector for power, audio output, control interface and GPIOs
Regulated 5V supply
2
S)
3. WISP50S Block Diagram
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4. Description of operations
4.1 Operating Conditions ( 5 V 450 mA)
Symbol Parameter Min. Typ Max Unit
VCC Supply Voltage 4.7 5.0 5.25 V
Temp Operating Temperature 0 25 60 °C
4.2 RF Information
Parameter Value Unit
Modulation QPSK
2400 – 2483.5
RF Frequency range (band)
RF Frequency
Audio Latency
5150 – 5250
5725 – 5875
Ch1 – 2412
Ch2 – 2436
Ch3 – 2464
Ch4 – 5180
Ch5 – 5210
Ch6 – 5240
Ch7 – 5736
Ch8 – 5726
Ch9 – 5814
20ms
MHz
MHz
Audio Bit Resolution
Audio Sampling Rate
Note: Country/ Region dependent.
16bit
48ksps
4.3 Receive mode
In receive mode, antenna diversity is supported. The single ended output of the TR switch is
connected to the RF LNA input through Diplexer and matching networks. Filtering and amplification is
all performed by the radio transceiver. The gain setting is controlled by the BB. The analog IQ outputs
are sampled by the BB by its integrated 22Msps dual channel 8bit ADC. This received data is
demodulated and fed to the audio processing engine controlling the audio function.
4.4 Transmit mode
In transmit mode, the audio engine transforms the audio data into packetized digital IQ signals. These
are in turn pulse-shaped before conversion by a 10bits 44Msps DAC to match to the analog IQ inputs
of the radio IC. The radio IC has programmable baseband filters to lower the RF spectrum side lobes
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