3. TECHNICAL BRIEF
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3.16 FM radio with RDS function
The FM receiver uses a digital low-IF architecture which allows for the elimination of external
components and factory adjustments. The receive (RX) section integrates a low noise amplifier (LNA)
supporting the worldwide FM broadcast band (87.5 to 108 MHz). An automatic gain control (AGC)
circuit controls the gain of the LNA to optimize sensitivity and rejection of strong interferers.
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