SA58640 - NXP Semiconductors

SA58640 Low-voltage mixer FM-IF

The SA58640 is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic RSSI, voltage regulator and audio and RSSI operational amplifiers. The SA58640 is available in a 20-pin SSOP package. 3. Features and benefits „ Low power consumption: 5.0 mA typical at 5 V „ .

Features

„ Low power consumption: 5.0 mA typical at 5 V „ Mixer input to >100 MHz „ Mixer conversion power gain of 17 dB at 45 MHz „ Crystal oscillator effective to 100 MHz (LC oscillator or external oscillator can be used at higher frequencies) „ 102 dB of IF amplifier/limiter gain „ 2 MHz IF amplifier/limiter small signal bandwidth „ Temperature compensated logarithmic RSSI with a 70 dB dynamic range „ Low external component count; suitable for crystal/ceramic/LC filters „ Audio output internal op amp „ RSSI output internal op amp „ Internal op amps with rail-to-rail outputs „ ESD protection: Human b.