General description
The TEF6621 is an AM/FM radio including Phase-Locked Loop (PLL) tuning system. The system is designed in such a way, that it can be used as a world-wide tuner coveringcommon FM and AM bands for radio reception. All functions are controlled by the I2C-bus.Besides the basic feature set it provides a good weak signal processing function.

Features
?FM tuner for Japan, Europe and US reception
?AM tuner for Long Wave (LW) and Medium Wave (MW) reception
?Integrated AM Radio Frequency (RF) selectivity
?Integrated PLL tuning system; controlled via I2C-bus
?Fully integrated Local Oscillator (LO)
?No alignment needed
?Very easy application on the main board
?No critical RF components
?Fully integrated Intermediate Frequency (IF) filters and FM stereo decoder
?Fully integrated FM noise blanker
?Field strength (LEVEL), multipath [Wideband AM (WAM)] and noise [UltraSonic Noise
(USN)] dependent stereo blend
?Field strength (LEVEL), multipath (WAM) and noise (USN) dependent High-Cut
Control (HCC)
?Field strength (LEVEL), multipath (WAM) and noise (USN) dependent soft mute
?Single power supply

Block diagram

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