The RDA5807FP is a single-chip broadcast FM stereo tuner. It's designed with fully integrated direct conversion receiver. The device incorporates the complete receiver function from RF to the audio output. It uses a CMOS process and supports worldwide FM band.

Applications

• Mobile phones
• MP3 players
• Portable radios
• Bluetooth devices
• FM modules

Features

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

Benefits

• Enables FM radio functionality in portable devices.
• Reduces power consumption, extending battery life.
• Provides clear and stable FM reception even in weak signal areas.
• Simplifies design and reduces bill of materials (BOM).
• Easy to integrate with other components.

Additional Details

The RDA5807FP operates at a low supply voltage. It includes an on-chip LDO regulator. This chip is typically controlled via an I2C interface. The digital low-IF architecture allows for high-quality audio output with minimal external components. This device supports both 50 and 75 μs de-emphasis, making it compatible with different FM broadcast standards.