2.4G Digital Wireless Audio Microphone Module
Features
*Digital audio with 64K sampling rate and 16-bit resolution.
*Low power consumption.
*GFSK digital modulation/demodulation.
*20Hz ~ 20 KHz audio frequency response.
*90dB audio dynamic range.
*Power-on function to prevent pop noise.
*Avoiding reception errors by employing forward error correction (FEC).
*Operating at 2.4GHz ISM band with 20 selectable channels.
*-85dBm receiving sensitivity, 45dB channel rejection and Application distance up to 180 meters (L. O. S. )
with perfect reception.
Applications
*Car Audio /Car Speaker
*Home theater rear speakers
*Wireless speakers
*Sound Card, MP3, CD player and DVD player
*Headphone
*Ordinary sound box
NO.DescriptionTransmitter moduleReceiver module1Work voltage 3.6- 6V DC 2.5 - 3.6V DC2Work electric current Max 120mA Max 35mA 3Work temperature-15 - +65-15 - +654Frequency response2400 - 2483 MHz 2400 - 2483 MHz 5ModulationGFSK 6Baud rate2M bps 2M bps 7Channel space4MHz4MHz 8Stabilization of frequency+/-156KHz +/-156KHz9Work frequency range2400 - 2483 MHz2400 - 2483 MHz10Work channel20 CH20 CH11Channel space of module4MHz 4MHz 12Output power0-20 dBm 13Receiver sensitivity 90dBm 14Input powerMax 1.0Vrms 15Input impedance10k Ohm 16Input modeTwo input modes:
1. Microphone
2. Stereo audio 17Stereo output 1 30mWRL = 32Ω 18Stereo output 2 50mWRL = 16Ω 19Output impedance 1k Ohm 20RF Distance100-150 meters in the open area under 20dBm21Output input gain ratio1:122Frequency response20 - 20000Hz ( +/1dB )23The latency time< 0.5 ms 24Sampling ratio64kHz@16 bit*225SNR95 dB26Distortion0.8%@1kHz 27Dynamic range90dB 28Separation between the left and right track70 dB