Wireless Audio Stereo Transceiver Module

MCD Jasmine is a transceiver module of short-distance (200-300m in open space) wireless stereo or mono transmission, which integrates audio and RF circuits. It covers VHF and UHF frequency of 86-1000MHz. The receiver consists of high-frequency receiving, stereo demodulation, squelch circuit, MCU frequency control and other functions. The transmitter consists of high-frequency transmitting, audio amplification, stereo modulation, MCU frequency control and other functions. By simply adding an external antenna, an audio socket, a DIP switch for frequency setting and an external MIC, the transceiver could be embedded in a variety of devices such as general amplifiers and lights.

Compared with another transceiver MCD Silver Flower that also integrates RF and audio circuits, MCD Jasmine reduces voice compressing and expanding circuits, whereas adds stereo circuit. Therefore, it sacrifices a little audio dynamic state and signal to noise ratio compared with MCD Silver Flower. However, the cost is greatly reduced, meanwhile frequency response and distortion degree is improved.

MCD Jasmine is characterized by low cost, and it comes with audio circuit. Stereo RX size is 39.6?7.4?1.0mm, and mono RX size is 31.0X72.9X11.0mm. Both modules work at 4.2V with RSSI squelch circuit, and output audio directly by being connected to an amplifier. TX size is 17.5?0mm, working at 4.2V. It is equipped with MIC bias circuit and amplifying circuit, and voice, wire and stereo audio input could be selected. The transmitting power of TX audio is 10dBm, and the receiving sensitivity of RX is -108dBm@12dBSINAD. With a reasonably matched antenna, the transmission distance of MCD Jasmine transceiver at 864MHz in open space is 180m, and the transmission distance across rooms is 25m, without staccato.