The RDA5815S is a single-chip broadcast FM stereo tuner designed for high performance and low power consumption. It integrates a complete receiver function from RF signal to audio output. This chip supports worldwide FM bands and is fabricated using CMOS process technology.

Applications

• Mobile phones
• MP3 players
• Portable radios
• Bluetooth headsets/speakers
• FM radio modules

Features

• Worldwide FM band support (76 – 108 MHz)
• Low power consumption
• High sensitivity
• Digital low-IF architecture
• FM stereo receiver
• 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 required

Benefits

• Enables FM radio functionality in portable devices with minimal power consumption.
• Extends battery life in mobile applications.
• Provides clear and stable FM reception even in weak signal areas.
• Simplifies product design and reduces the bill of materials (BOM).
• Allows for easy integration with other system components.

Additional Details

The RDA5815S integrates almost all functional blocks needed for a complete FM radio receiver. Its digital low-IF architecture ensures high-quality audio output while minimizing external components. The chip can be controlled through an I2C interface. It also supports both 50 and 75 μs de-emphasis standards to support various FM broadcasting standards globally. It has excellent RF performance. Its LDO also allows it to be powered from a wider range of supply voltages.