RDA5807FP Broadcast FM Radio Tuner IC SOP-16

RDA5807FP Broadcast FM Radio Tuner IC SOP-16 is a single-chip broadcast FM stereo radio tuner that integrates the complete tuner function, including the synthesizer, IF selectivity, and MPX decoder. This highly integrated IC leverages a powerful digital low-IF architecture, which eliminates the need for external filters and manual alignment during production. Consequently, manufacturers can significantly reduce the overall bill of materials (BOM) and assembly time for consumer electronics. The RDA5807FP supports the worldwide frequency band (50 MHz to 115 MHz) and includes advanced features such as soft mute, adaptive noise cancellation, and an integrated RDS/RBDS processor. Furthermore, its low power consumption and high sensitivity make it a perfect choice for portable devices where battery life and signal reception are critical. Therefore, you should choose this IC to achieve high-quality FM audio with a compact and cost-effective circuit design.

Key Features:

• High Integration: The chip minimizes external component requirements by integrating the voltage-controlled oscillator (VCO), low-noise amplifier (LNA), and frequency synthesizer on a single die.
• Flexible Interface: Users can control the device via a standard I²C serial bus, allowing for easy adjustment of frequency, volume, and processing parameters.
• Global Frequency Support: It covers a wide frequency range from 50 MHz up to 115 MHz, supporting worldwide FM bands including the Japanese band.
• Digital Processing: The IC uses digital signal processing (DSP) for excellent audio quality, automatic frequency control (AFC), and digital auto-gain control (AGC).
• Integrated RDS/RBDS: It features a dedicated Radio Data System processor that decodes station information, song titles, and time data automatically.

Technical Specifications:

• Operating Voltage (V_DD): 2.7 V to 3.3 V
• Frequency Range: 50 MHz to 115 MHz
• Interface Type: 2-wire I²C Bus (Standard and Fast mode)
• Sensitivity: ≈ 1.5 μV_RMS
• Signal-to-Noise Ratio (SNR): 58 dB (Stereo)
• Total Harmonic Distortion (THD): ≈ 0.15%
• Supply Current: 18 mA (Active mode), < 10 μA (Power-down mode)

Mechanical Specifications:

• Package Style: SOP-16 (Small Outline Package)
• Mounting Type: Surface Mount Device (SMD)
• Material: Lead-free, RoHS compliant molding compound.
• Pin Count: 16-pin configuration for enhanced heat dissipation and signal routing.

Dimensions:

• Body Length: ≈ 9.9 mm
• Body Width (including pins): ≈ 6.0 mm
• Body Height: ≈ 1.55 mm
• Pin Pitch: 1.27 mm (Standard SOP spacing)

Pinout and Wiring:

• Pin 1 (GND): Connect to the system ground.
• Pin 2 (FM Antenna): Connect to a 75 Ω antenna or a wire antenna for signal reception.
• Pin 3 (V_DD): Connect to the 3.3 V DC power supply.
• Pin 13 (SCLK): Connect to the I²C Clock line of your microcontroller.
• Pin 14 (SDIO): Connect to the I²C Data line of your microcontroller.
• Pins 15 & 16 (L-OUT / R-OUT): These pins provide the analog audio output for left and right channels, typically connected to an audio amplifier or headphones.

Datasheet Reference:

• Download RDA5807FP Broadcast FM Tuner Datasheet

Commonly Used in:

• Portable Radios: Small, handheld battery-operated radio units and scanners.
• Multimedia Players: MP3 players and mobile phones that require an integrated FM radio function.
• DIY Electronics: Hobbyist projects involving Arduino or ESP32-based digital radio receivers.

Applications:

• Stereo Audio Systems: Implementing a digital FM tuner into home audio receivers or desktop speakers.
• Smart Home Devices: Adding radio functionality to smart alarm clocks and intercom systems.
• Wireless Audio Transmission: Acting as the receiver end for short-range FM broadcast applications.

Equivalent Models:

• TEA5767 (NXP): A very common equivalent, however, it may require different software drivers for I²C communication.
• Si4703 (Silicon Labs): A high-performance alternative that also supports RDS, though often available in smaller QFN packages.
• RDA5807M: A similar IC from the same family, typically found in a smaller 10-pin MSOP format.

Package Includes:

• 1 x RDA5807FP Broadcast FM Radio Tuner IC SOP-16