STW82103B is an integrated down converter providing 8 dB of gain, 10.5 dB NF, and a very high input linearity by means of its passive mixer. Embedding two wide band automatic center frequency calibration differential VCOs, dual modulus programmable prescaler (16/17 or 19/20), programmable reference frequency divider (10 bits), adjustable charge pump current, digital lock detector and fast lock time (150 µs).