The MC13747FBR2 is a monolithic integrated circuit designed for use as a direct FM audio transmitter. Formerly manufactured by Freescale Semiconductor (now NXP), it is designed to transmit audio signals over short distances using frequency modulation. This IC is commonly used in applications requiring wireless audio transmission, such as wireless microphones and intercom systems.

Applications:

• Wireless Microphones: Transmitting audio from a microphone to a receiver.
• Wireless Intercom Systems: Two-way communication systems for home or office use.
• Baby Monitors: Audio transmission from a baby's room to a monitoring device.
• FM Transmitters: Creating small FM transmitters for various applications.
• Remote Control Systems: Transmitting audio signals for remote control purposes.

Features:

• FM Transmitter: Integrated FM transmitter circuitry.
• Low Power Consumption: Designed for battery-powered operation.
• Adjustable Output Power: Allows adjustment of the transmission range.
• Pre-emphasis Circuitry: Improves audio quality and reduces noise.
• Low Distortion: Provides clear and accurate audio transmission.
• Compact Package: Available in a small package for space-constrained applications.

Benefits:

• Wireless Audio Transmission: Enables wireless audio connectivity.
• Portable Operation: Low power consumption allows for battery-powered operation.
• Adjustable Range: Output power adjustment allows for customization of transmission range.
• Improved Audio Quality: Pre-emphasis circuitry enhances audio quality.
• Simplified Design: Integrated circuitry reduces design complexity.

Additional Details:

The MC13747FBR2 operates with a supply voltage range. It includes internal circuitry for generating the FM carrier signal and modulating it with the audio input. The IC is designed to minimize harmonic distortion. The design facilitates easy integration into various wireless audio systems. It is commonly used in consumer electronics, security systems, and other applications requiring wireless audio transmission.