Low-voltage high performance mixer FM IF system

文件：214 Kbytes 頁數(shù)：19 Pages

PHI

PHI

Low-voltage high performance mixer FM IF system

文件：214 Kbytes 頁數(shù)：19 Pages

PHI

PHI

低壓高性能混頻器FM IF系統(tǒng)

SA606是低壓高性能單片F(xiàn)M IF系統(tǒng)，集成了一個(gè)混頻器/振蕩器、兩個(gè)限幅中頻放大器、正交檢波器、對(duì)數(shù)接收信號(hào)強(qiáng)度指示器(RSSI)、電壓調(diào)節(jié)器以及音頻和RSSI運(yùn)算放大器。SA606采用SO20和SSOP20封裝。\nSA606專門針對(duì)便攜式通信應(yīng)用而設(shè)計(jì)，其工作電壓可低至2.7 V。RF部分與著名的SA605類似。音頻和RSSI輸出具有可訪問反饋路徑的放大器。因此，設(shè)計(jì)人員能夠調(diào)整輸出電平或添加濾波。 低功耗：3.5 mA典型值（3 V時(shí)）\n混頻器輸入達(dá)150 MHz以上\n45 MHz時(shí)17 dB的混頻器轉(zhuǎn)換功率增益\nXTAL振蕩器有效頻率達(dá)150 MHz（LC振蕩器或外部振蕩器可在更高頻率下使用）\n102 dB的IF放大器/限幅器增益\n2 MHz的IF放大器/限幅器小信號(hào)帶寬\n溫度補(bǔ)償對(duì)數(shù)RSSI，具有90 dB動(dòng)態(tài)范圍\n外部元器件數(shù)少；適合晶體/陶瓷/ LC濾波器\n出色的靈敏度：在1 kHz音頻信號(hào)（RF為45 MHz、IF為455 kHz）時(shí)，信噪和失真比(SINAD)為12 dB，對(duì)于50 Ω匹配網(wǎng)絡(luò)為0.31 μV\nSA606符合蜂窩無線電規(guī)范\n音頻輸出內(nèi)部運(yùn)算;

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Low-voltage high performance mixer FM IF system

The SA606 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 SA606 is available in SO Low power consumption: 3.5 mA typical at 3 V\nMixer input to >150 MHz\nMixer conversion power gain of 17 dB at 45 MHz\nXTAL oscillator effective to 150 MHz (LC oscillator or external oscillator can be used at higher frequencies)\n102 dB of IF amp/limiter gain\n2 MHz IF amp/limiter small signal bandw;

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