Andy's Technical Information Page
ROHM BA1404
Stereo VHF Transmitter IC
The BA1404 and BA1404F are monolithic FM stereo transmitters. The devices contain a stereo modulation an FM modulator, and an RF amplifier The stereo modulato, creates a stereo composite signal.
The FM modulator oscillates a carrier in the FM broadcast band (76 to 108 MHz) and modulates it with The composae signal.
The AF amplifier creates energy to emit the modulated FM signal. It also func-tions as a buffer for the FM modulator
Features
1. Low voltage, low power design.
2. Stereo FM modulator and transmitter on a single chip
3. Few external components required,
4. High separaton (45 dB typ.).