SDA4331X receivers equivalent, pll with i2c bus for am/fm receivers.
155 MHz FM and 40 MHz AM input frequency 30 mVeff AM and 50 mVeff FM sensitivity Additional open drain ports controlled by I2C Bus 2-pin quartz oscillator Fast phase det.
The SDA 4331X is a radio PLL controlled via I2C Bus for frequency synthesis in the AM and FM range. 3 Circuit Description
The reference frequency for the PLL is derived from the quartz oscillator OSC1). The R-prescaler can be adapted to quartz freq.
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