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:

New Circuits

.

 


Popular Circuits

Electronic-time-delay
Agc System For Audio Signals Circuit
Crystal Oscillator - Parallel Resonant
Magic Lights
SLA7611M 3-Phase Stepper Motor Driver ICs
Tilt Sensor Alarm Circuit
Simple Easy Parametric and Graphic EQs Plus Peaks and Notches
Wien Bridge Oscillator



Top