基于TQM8M9076下的0.05?–?4 GHz Digital Variable Gain Amplifier

　　Applications

　　? Wireless Infrastructure ? Fixed Wireless ? Microwave and Satellite Radio ? IF and RF Applications ? General Purpose Wireless

　　Product Features

　　? Integrates DSA + Amp Functionality ? 50 – 4000 MHz Broadband Performance ? 19.5 dB Gain at 2.14 GHz ? 2.9 dB Noise Figure at Maximum Gain Setting ? +21.5 dBm P1dB ? +38.5 dBm OIP3 ? +5 V Supply Voltage ? 125 mA Operating Current ? MTTF 》 1000 Years

　　General Description

　　The TQM8M9076 is a digitally controlled variable gain amplifier （DVGA） with a broadband frequency range of 50 to 4000 MHz The DVGA features high linearity and low noise while providing digital variable gain with 31.5?dB of range in 0.5?dB steps through a 6-bit serial mode control interface. This combination of performance parameters makes the DVGA ideal for receiver applications requiring gain control with high IIP3 and low noise figure. The TQM8M9076 integrates a high performance digital step attenuator and a high linearity， broadband gain block. Both stages are internally matched to 50?Ohms and do not require any external matching components. A serial output port enables cascading with other serial controlled devices. The TQM8M9076 is packaged in a RoHS-compliant， compact 5?x?5 mm surface-mount leadless package. Superior thermal design allows the product to have a minimum MTTF rating of 1000 years at a mounting temperature of +85?°C. The TQM8M9076 is targeted for use in wireless infrastructure， point-to-point， or can be used for any general purpose wireless application.