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Low Noise 200MHZ Broadband Amplifier Circuit

2014-11-17 12:11  
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Low Noise 200MHZ Broadband Amplifier Circuit
The circuit consists of two CX35D. The main technological indicators are: bandwidth of 10-20MHz; When the load resistance value is 500Ω, the voltage gain Au is not less than 80; the undistorted output voltage is not less than 500mV; the short noise which is put on input terminal is less than 40μV. When the capacitors which are connected to pin5,pin9,pin10 are adjusted, the band width can reach 300KHz; Every level should be shielded;Transistor's characteristic frequency should be larger than 1000MHz.