ALM-1612

45676765dd

【用　途】 【性能 参数】   是高增益低噪音 1.575GHz GPS放大器,集成了低噪音放大器(LNA)和GPS FBAR滤波器,具有可变电流/关断功能. ALM-1612采用GaAs pHEMT工艺制造,具有非常低的噪音,典型值为0.95dB, 典型增益为18.2dB, IIP3 = +2 dBm, IP1dB = -8 dBm,可用于GPS前端接收模块.    ALM-1612的主要特性和指标, 应用电路, 演示板和演示板所用元件表以及散射参数和测量参考平面：    1.575GHz GPS High-Gain Low Noise Amplifier with Integrated FiLTEr and Variable Current/Shutdown Function    Avago Technologies’ ALM-1612 is a GPS front-end module that combines a low-noise amplifier (LNA) with a GPS FBAR filter. The LNA uses Avago Technologies’ proprietary GaAs Enhancement-mode pHEMT process to achieve high gain with very low noise figure and high linearity. Noise figure distribution is very tightly controlLED. A CMOS-compati?ble shutdown PIN is included either for turning the LNA on/off, or for current adjustment. The integrated filter utilizes an Avago Technologies’ leading-edge FBAR filter for exceptional rejection at Cell/PCS-Band frequencies.    The low noise figure and high gain, coupled with low current consumption make it suitable for use in critICal low-power GPS applications or during low-battery situations.    ALM-1612主要特性:    Very Low Noise Figure: 0.95 dB typ.    High Gain: 18.2 dB typ.    High IIP3 and IP1dB    Exceptional Cell/PCS-Band rejection    Advanced GaAs E-pHEMT & FBAR Technology    Low external component count    Shutdown current:  3kV; All other pins: ESD MachineModel = 70V, ESD Human Body Model = 350V    Meets MSL3    Useable down to 1.8V supply    Adjustable current via single external resistor/voltage    Small PACkage dimension: 3.3(L)x2.1(W)x1(H) mm3    ALM-1612主要指标(25度C典型性能)    At 1.575GHz, Vdd = 2.7V, Idd = 6.0mA    Gain = 18.2 dB    NF = 0.95 dB    IIP3 = +2 dBm, IP1dB = -8 dBm    S11 = -9 dB, S22 = -14 dB    Cell-Band Rejection: 69 dBc    PCS-Band Rejection: 67 dBc    应用:    GPS Receiver Front-end Module图1.ALM-1612应用电路图2.ALM-1612演示板ALM-1612演示板所用元件表图3. ALM-1612应用电路图图4.ALM-1612散射参数和测量参考平面【代换】【ALM-1612的】