BA1404 FM stereo transmitter
BA1404 is a IC designed for fm mini stereo transmitters. It can be used as a pc fm transmitter, ipod fm transmitter, mp3 transmitter or even car fm transmitter because it has a small pcb dimension ( can fit anyplace ) and maximum 3V power supply.
It has a good frequency stability due the high quality 3.5 turns coil and a crystal clear stereo sound and improved sound separation due the use of 38 KHz crystal which provides rock solid frequency for stereo encoder.
The capacitors have to be as close as possible to a BA1404 chip and a variable coil because this will improve the sound quality, sound separation and even frequency stability as well.
Dimensions of the PCB should be 57 mm x 35 mm (W x H).
The range of this BA1404 transmitter depends of the length and type of the antenna, it must be 1/2 Lambda or 1 x Lambda ( around 1.5 meters long ) and made from copper. Beside this, the range is affected by the elevation of the antenna, weather conditions and line of sight.
If you need to cover a larger area connect an external amplifier to this fm wireless transmitter for mp3 player. You can find in this site by searching for it.
Related Schematics
If you enjoyed this post, please consider to leave a comment or subscribe to the feed and get future articles delivered to your feed reader.
Comments
No comments yet.
Leave a comment