Description

The RDA5810X is a fully integrated FM transceiver with a single-chip CMOS process. It contains an IF selectivity, MPX decoder, and synthesizer, making it adjustment-free and suitable for portable devices. It also has a powerful low-IF digital audio processor resulting in varying reception condition sound quality.

Specifications and features

• CMOS single-chip transceiver
• Low power consumption: < 20mA at 3.0V power supply
• Supports worldwide and campus frequency bands: 65-115 MHz
• Digital low-IF tuner
• Fully integrated digital frequency synthesizer
• All digital transmitter
• Supports integrated Rx/Tx PCB antenna
• Digital auto gain control (AGC)
• 32.768KHz crystal oscillator
• Programmable de-emphasis: 50/75 ms
• Line-level analog output voltage
• Integrated LDO regulator: 2.7 to 5.5 V operation voltage
• 4X4mm 24 pin QFN package

Application Scenarios

The RDA5810X is well-suited for various applications, including cellular handsets, MP3 and MP4 players, portable radios, PDAs and notebook PCs, and wireless toys.

Comparison

• Compact size: The RDA5810X has a small size of 4X4mm and is adjustment-free, making it suitable for portable devices.
• Optimal sound quality: The powerful low-IF digital audio processor provides the RDA5810X with optimum sound quality in varying reception conditions.
• Integrated synthesizer: The fully integrated digital frequency synthesizer provides agility to the RDA5810X.
• Supports multiple interfaces: The RDA5810X supports multi-interface and requires the least external components, making it relatively easy to use.
• Low power consumption: The RDA5810X has a total current consumption lower than 20mA at 3.0V power supply, making it energy-efficient.

• Limited frequency band: The RDA5810X can only support 65M~115M frequency bands, making it less flexible when compared to models that support a wider range of frequency bands.