描述 Description

The Si4702/03 integrates the complete tuner function from antenna input to stereo audio output for FM broadcast radio reception.

特性 Features

■ This data sheet applies to Si4702/03-C Firmware 19 and greater

■ Worldwide FM band support (76–108 MHz)

■ Digital low-IF receiver

■ Frequency synthesizer with integrated VCO

■ Seek tuning

■ Automatic frequency control (AFC)

■ Automatic gain control (AGC)

■ Excellent overload immunity

■ Signal strength measurement

■ Programmable de-emphasis (50/75 μs)

■ Adaptive noise suppression

■ Volume control

■ Line-level analog output

■ 32.768 kHz reference clock

■ 2-wire and 3-wire control interface

■ 2.7 to 5.5 V supply voltage

■ Integrated LDO regulator allows direct connection to battery

■ 3 x 3 mm 20-pin QFN package

● Pb-free/RoHS compliant

■ RDS/RBDS Processor (Si4703)

■ Integrated crystal oscillator

Applications

■ Cellular handsets

■ MP3 players

■ Portable radios

■ USB FM radio

■ PDAs

■ Notebook PCs

■ Portable navigation

■ Consumer electronics