厂商：Freescale
类别：16位单片机
厂商：SGmicro
类别：电压监测电路
厂商：TDK
类别：绕组电感器
厂商：Linear
类别：I2C和SMBus总线缓冲器和加速器
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：
类别：ATtiny系列单片机
我要询价我要收藏
详细描述The RF7173 is a dual band (GSM850/PCS1900 or EGSM900/DCS1800) GSM/GPRS Class 12compliant transmit module with two symmetrical receive ports that has been specifically tuned for better efficiency. This transmit module builds upon RFMD’s leading power amplifier with PowerStar® integrated power control technology, pHEMT switch technology, and integrated transmit filtering for best-in-class harmonic performance. The results are high performance, reduced solution size, and ease of implementation. The device is designed for use as the final portion of the transmitter section in a GSM850/PCS1900 or EGSM900/DCS1800 handset and eliminates the need for a PA-to-antenna switch module matching network.The RF7173 features RFMD’s latest integrated power-flattening circuit, which significantlyreduces current and power variation into load mismatch. Additionally, a VBATT tracking feature is incorporated to maintain switching performance as supply voltage decreases. The RF7173 also integrates an ESD filter to provide excellent ESD protection at the antenna port. The RF7173 is designed to provide maximum efficiency at rated POUT.特点Enhanced Performance Transmit ModuleNo External RoutingEnhanced Efficiency at Rated POUT , VBATT = 3.6V, GSM850/EGSM900 42%, DCS1800/PCS1900 36%Low Rx Insertion LossSymmetrical Rx Ports0dBm to 6dBm Drive Level, > 50dB of Dynamic RangeExcellent ESD Protection at Antenna Port: 8kVIntegrated Power Flattening CircuitVBATT Tracking Circuit