General description

The SA676 is a low-voltage 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 SA676 is available in a 20-pin SSOP (Shrink Small Outline Package).

Features and benefits

■ Low power consumption: 3.5 mA typical at 3 V

■ Mixer input to > 100 MHz

■ Mixer conversion power gain of 17 dB at 45 MHz

■ XTAL 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 amp/limiter small signal bandwidth

■ Temperature compensated logarithmic Received Signal Strength Indicator (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 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

Applications

■ Cordless telephones

SA676属于RF/IF，射频/中频和 RFID > 射频混频器。恩智浦半导体公司制造生产的SA676射频混频器射频混频器又称混频器，这些器件具有三个端口，用于改变两个输入信号的频率。射频混频器是一些无源或有源器件，可用于对信号进行上下变频。特征包括射频类型、频率、混频器数、增益、噪声系数、辅助属性、电流和电压。频率范围为 0 至 90 GHz，混频器数为 1、2、3 或 4。