DESCRIPTION

The SA616 is a low-voltage high performance monolithic FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator and audio and RSSI op amps. The SA616 is available in 20-lead SSOP (shrink small outline package).

FEATURES

? Low power consumption: 3.5mA typical at 3V

? Mixer input to >150MHz

? Mixer conversion power gain of 17dB at 45MHz

? XTAL oscillator effective to 150MHz (L.C. oscillator or external oscillator can be used at higher frequencies)

? 102dB of IF Amp/Limiter gain

? 2MHz IF amp/limiter small signal bandwidth

? Temperature compensated logarithmic Received Signal Strength Indicator (RSSI) with a 80dB dynamic range

? Low external component count; suitable for crystal/ceramic/LC filters

? Excellent sensitivity: 0.31μV into 50? matching network for 12dB SINAD (Signal to Noise and Distortion ratio) for 1kHz tone with RF at 45MHz and IF at 455kHz

? SA616 meets cellular radio specifications

? Audio output internal op amp

? RSSI output internal op amp

? Internal op amps with rail-to-rail outputs

? ESD protection: Human Body Model 2kV

Robot Model 200V

APPLICATIONS

? Portable cellular radio FM IF

? Cordless phones

? Wireless systems

? RF level meter

? Spectrum analyzer

? Instrumentation

? FSK and ASK data receivers

? Log amps

? Portable high performance communication receiver

? Single conversion VHF receivers