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wiki:projects:vnarefit:diag_details

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wiki:projects:vnarefit:diag_details [2018/02/01 18:02]
nats [Mixer]
wiki:projects:vnarefit:diag_details [2018/02/01 18:09] (current)
nats [Mixer]
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   - [[http://​www.linear.com/​product/​LTC5548|LTC5548]]:​ This mixer goes from 2 to 14GHz LO/RF ! And 0 to 6GHz IF. The LO has a doubler integrated (can be activated independantly). This mixer suit perfectly the needs, please note if you need a single ended output over 500MHz the LTC5549 is integrating an output balun !   - [[http://​www.linear.com/​product/​LTC5548|LTC5548]]:​ This mixer goes from 2 to 14GHz LO/RF ! And 0 to 6GHz IF. The LO has a doubler integrated (can be activated independantly). This mixer suit perfectly the needs, please note if you need a single ended output over 500MHz the LTC5549 is integrating an output balun !
  
-The differential output directly goes to an ADA4940-1 with MFB topology filter. The filter is designed to be a 1MHz Low-Pass with an in-band gain of about 3 (to compensate for the mixer loss).+The differential output directly goes to an [[http://​www.analog.com/​en/​products/​amplifiers/​adc-drivers/​fully-differential-amplifiers/​ada4940-1.html|ADA4940-1]] with MFB topology filter. The filter is designed to be a 1MHz Low-Pass with an in-band gain of about 3 (to compensate for the mixer loss). An Input of 0dBm should be just on the range limit of the ADC. Giving a theorical 96dB dynamic range from -96 to 0dBm.
  
 //In the first prototype one of the two path has a Mini-Circuit splitter and a Log Detector to measure the signal power but this feature will be removed and the power will be computed in the FPGA.// //In the first prototype one of the two path has a Mini-Circuit splitter and a Log Detector to measure the signal power but this feature will be removed and the power will be computed in the FPGA.//
wiki/projects/vnarefit/diag_details.txt ยท Last modified: 2018/02/01 18:09 by nats