Wireless Stereo FM Transmitter BA1404


Posted on Feb 6, 2014

This Wireless Stereo FM Transmitter built from a monolithic IC. The internal structure of this FM transmitter integrated circuit consist of stereo modulator that creates a stereo composite signal, an FM modulator that modulate a carrier frequency with the composite signal, and an RF amplifier that provide enough power to be transmitted through ant


Wireless Stereo FM Transmitter BA1404
Click here to download the full size of the above Circuit.

enna. The core of this stereo FM transmitter is BA1404 integrated circuit chip. from ROHM. This FM transmitter is ideal for wireless microphone, or for audio interface and distribution for home or car appliance. For example, you can now play your portable mp3/mp4 player on your old car radio sound system that doesn`t have line-input plug. This stereo FM transmitter chip is designed for 75-108 FM band, and you can adjust the operation by trimming the LC network connected to pin 10 of this IC chip. To ease the adjustment, you can use a 22-33p variable capacitor for the 15p capacitor connected to pin 10. Finally, this stereo FM transmitter works with only 1. 5-3V power supply, ideal for battery operation. More than 3. 5V supply voltage could burn this FM transmitter circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Morse Keyer circuit
    Rain warning beeper
    Simple FM transmitter
    Oscilloscope-preamplifier
    Relay Output Proximity Sensor
    rf digital
    6V6 6J5 Class A Vacuum Tube (Valve) Amplifier Circuit
    Clock keeps on ticking
    Most Accurate Clock
    Infrared Wireless Headphones circuit
    Mains voltage bidirectional limit alarm protection circuit diagram



    Top