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ROHM BH1415F FM stereo transmitter IC Wireless Audio BH1415
The BH1415F is a FM stereo transmitter IC that transmits simple configuration. This IC consists of a stereo modulator for generating stereo composite signals and a FM transmitter for broadcasting FM signals .
The stereo modulator generates a composite signal which consists of the MAIN, SUB, and pilot signal from a 38kHz oscillator.
The FM transmitter radiates FM wave on the air by modulating the carrier signal with a composite signal.
CD changer, Car TV, Car navigation, Wireless speakers, Personal computer (sound board), Game player
1) The timbre could be improved since it has the pre-emphasis circuit, limiter circuit, and the low-pass filter circuit.
2) Built-in pilot-tone system FM stereo modulator circuit.
3) The transmission frequency is stable because it has a PLL system FM transmitter circuit.
4) PLL data input (CE, CK, DA) by serial input.
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