SA639 Datasheet - NXP

SA639 Low voltage mixer FM IF system

The SA639 is a low-voltage high performance monolithic FM IF system with high-speed RSSI incorporating a mixer/oscillator, two wideband limiting intermediate frequency amplifiers, quadrature detector, logarithmic Received Signal Strength Indicator (RSSI), fast RSSI op amps, voltage regulator, wideba.

SA639 Features

* VCC = 2.7 V to 5.5 V

* Low power consumption: 8.6 mA (typical) at 3 V

* Wideband data output (1 MHz minimum)

* Fast RSSI rise and fall times

* Mixer input to >500 MHz

* Mixer conversion power gain of 9.2 dB and noise figure of 11 dB at 110 MHz

* XTAL oscillator effectiv

SA639-NXP.pdf