A radio-frequency (RF) receiver includes a receiver analog circuitry and a
receiver digital circuitry. The receiver analog circuitry resides within
a first integrated circuit and the receiver digital circuitry resides
within a second integrated circuit. The second integrated circuit couples
to the first integrated circuit via a one-bit digital interface. The
receiver analog circuitry receives an RF signal and processes the
received RF signal to generate a digital signal. The receiver analog
circuitry provides the digital signal to the receiver digital circuitry.
The receiver digital circuitry includes a digital down-converter
circuitry that mixes the digital signal with an intermediate frequency
(IF) local oscillator (LO) signal to generate a digital down-converted
signal. The receiver digital circuitry also includes a digital filter
circuitry that filters the digital down-converted signal to generate a
filtered digital signal.