View sa608 datasheet:

Philips Semiconductors RF Communications Products Product specification Low voltage high performance mixer FM IF system SA608 DESCRIPTION PIN CONFIGURATION • Low external component count; suitable for The SA608 is a low voltage high performance crystal/ceramic/LC filters monolithic FM IF system incorporating a D, DK and N Packages • Excellent sensitivity: 0.31µV into 50? mixer/oscillator, two limiting intermediate matching network for 12dB SINAD (Signal frequency amplifiers, quadrature detector, 1 to Noise and Distortion ratio) for 1kHz tone, RF IN+ 20 MIXER OUT logarithmic received signal strength indicator 8kHz deviation with RF at 45MHz and IF at RF IN– IF AMP (RSSI), voltage regulator and audio and RSSI 2 19 DECOUPLING DECOUPLING 455kHz op amps. The SA608 is availa