LG 9QK DMRS3 User Manual

Model Name : RS3_2.4GHz_NAM-SS01 module

Product Description.

The Module is an OEM module (35x35mm) based on the IA3S4. It is a compressed wireless digital

audio transceiver operating in the 2.4GHz bands. The wireless audio link supports 1 stereo audio

stream and comes together with additional features such as: pairing functionality, seamless and bi-

direction transmission of high quality audio, I2S sampling frequency detection, support Sleep mode,

Programmable end-to-end audio latency, Control Channel ability, support no audio detection, Robust

packet error correction.

 SYNIC IA3S4 Integrated Wireless Audio Processor
 GFSK digital modulation.
 Audio format 16bit, 32/44.1/48KHz sampling rate

2

 Digital audio interfaces (I

2

 I

C, SPI control interface

 26 pins interface connector (FFC).
 Support no audio detection function.
 Robust packet error correction.
 Low power consumption.
 Low audio delay time < 20ms

S and/or S/PDIF)

RF Frequency Bandwidth.

2.4GHz: 2400 – 2485MHz

RF Performance.

For 2.4GHz application (VCC=3.3V, 25°C)

Parameter Min Typ. Max Units

RF Frequency Range 2400 2485 MHz

Available channel 39

Transmission Power 5 7 9 dBm

RF Bandwidth 1 MHz

Rx Sensitivity -80 dBm

Antena Diversity ON

Audio Performance.

Item Min Typ Max Unit Note

SNR @ 1Khz -88 dBr

THD+N @ 1KHz -70 dB

Dynamic Range @ 1KHz -85 dBr

Crosstalk @ 1KHz -100 dB

Frequency Response @ 20Hz to 20KHz -3 0 +3 dB

POWER

- Supply Voltage : 3.1V(Min), 3.3V(Typ), 3.5V(Max)

- Peak to Peak Ripple: 100mV(Max)

- Operating Current: 50mA(Typ)

- Operating Temperature : 0°C (Min) , 25°C (Typ) , 55°C (Max)