The RDA5807M is a highly integrated single-chip broadcast FM stereo tuner designed for portable electronic devices. This device leverages a fully integrated direct conversion receiver architecture, incorporating all the necessary receiver functions from RF signal input to audio output. Built on a CMOS process, the RDA5807M supports the worldwide FM band, making it suitable for global applications. Its compact size and low power consumption make it an excellent choice for battery-powered devices.

Applications

• Mobile phones
• Portable media players (MP3/MP4)
• FM radio receivers
• Bluetooth audio devices
• FM radio modules

Features

• Worldwide FM band support (76-108 MHz)
• Low power consumption
• High sensitivity
• Digital low-IF architecture
• FM stereo receiver with automatic gain control (AGC)
• Automatic frequency control (AFC)
• Digital noise suppression
• Bass boost
• Programmable de-emphasis (50/75 μs)
• I2C control interface
• Minimal external components required

Benefits

• Enables FM radio reception in portable devices with minimal power consumption.
• Extends battery life for portable applications.
• Provides clear and stable audio quality even in weak signal conditions.
• Simplifies circuit design and reduces the overall cost of the system.
• Easy integration with existing microcontroller-based systems via I2C.

Additional Details

The RDA5807M's digital low-IF architecture allows for high-quality audio output while minimizing external component requirements. The integrated AGC and AFC features ensure stable and reliable FM reception. The device can be controlled via the I2C interface. Its low power consumption makes it ideal for battery-powered devices such as mobile phones and portable media players. Programmable de-emphasis enables compatibility with global FM broadcast standards. The chip contains internal LDO, so it can be powered directly with 3.3V supply.