The SI4720CY is a highly integrated FM radio receiver from Vishay. This device is designed for low-power, high-performance applications in portable audio devices, mobile phones, and other consumer electronics where FM radio reception is required. It incorporates advanced digital signal processing (DSP) to deliver superior audio quality and robust reception even in challenging environments.

Applications

• Portable media players (PMPs)
• Mobile phones
• Tablets
• Clock radios
• Automotive entertainment systems

Features

• Worldwide FM band support (76-108 MHz)
• Advanced digital signal processing (DSP)
• Low power consumption
• Automatic frequency control (AFC)
• Automatic gain control (AGC)
• I2C control interface
• Integrated LDO regulator
• Small form factor

Benefits

• Superior audio quality: DSP ensures clear and noise-free FM reception.
• Extended battery life: Low power consumption is crucial for portable devices.
• Simplified design: High integration reduces external component count and board space.
• Robust reception: AFC and AGC maintain stable reception in varying signal conditions.
• Easy integration: Standard I2C interface simplifies control and configuration.

The SI4720CY uses a CMOS process technology, which enables high performance while minimizing power consumption. The device supports both mono and stereo audio output and includes advanced features such as adjustable deemphasis and noise blanking to optimize audio quality. The device's small size and low power make it suitable for integration into a wide range of portable devices. The I2C interface allows for easy control of the device's settings, including frequency selection, volume control, and audio output configuration. The integrated LDO regulator further simplifies the power supply design.