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基于TQM8M9077下的0.05 – 4 GHz Digital Variable Gain Amplifier
479461
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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
• 13 dB Gain at 2.14 GHz • 3.9 dB Noise Figure at max gain setting
• +21.5 dBm P1dB
• +38.5 dBm OIP3
• +5 V Supply Voltage
• 88 mA Operating Current
• MTTF 》 1000 Years
General Description
The TQM8M9077 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 TQM8M9077 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 TQM8M9077 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 TQM8M9077 is targeted for use in wireless infrastructure， point-to-point， or can be used for any general purpose wireless application.
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