Low-Voltage High-Performance Mixer FM IF System

Key Features

• Low power consumption: 3.5 mA typical at 3 V
• Mixer input to >150 MHz
• Mixer conversion power gain of 17 dB at 45 MHz
• XTAL oscillator effective to 150 MHz (LC oscillator or external oscillator can be used at higher frequencies)
• 102 dB of IF amp/limiter gain
• 2 MHz IF amp/limiter small signal bandwidth
• Temperature compensated logarithmic RSSI with a 80 dB dynamic range
• Low external component count; suitable for crystal/ceramic/LC filters
• Excellent sensitivity: 0.31 μV into 50 Ω matching network for 12 dB SINAD (Signal-to-Noise-and-Distortion ratio) for 1 kHz tone with RF at 45 MHz and IF at 455 kHz
• 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 exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
• Latch-up testing is done to JEDEC Standard JESD78 Class II, Level B
• 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