Difference between revisions of "TinySA"

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** 1/2W max
 
** 1/2W max
  
−
[[file:30dB_Attenuator_R10.PNG]]
+
[[file:LTSPice_30dB.PNG]]
  
 
== Videos ==
 
== Videos ==

Revision as of 00:40, 6 September 2021

TinySA - Spectrum Analyzer

  • Maximum input level
    • 0 dBm = 1 mW
    • dBm = 10*LOG(milliwatts)
    • -10 dBm = 0.1 mW
    • +10dBm = 10 mW
    • +20dBm = 1000 mW
  • 3.3V at 50 Ohm = 0.2178W
    • 217.8 mW = 23.4 dBm
  • tinySA wiki

Attenuators

30 dBm Attenuator

30dB Attenuator.PNG

  • Built
    • Standard 5% resistor values
    • R2 = 2 paralleled 120 Ohm 1/4W resistors paralleled with 470 ohms = 53.2 ohms
    • R1 = 820 in parallel with 22K = 790.6 ohms
    • Flat from 0-30 MHz
    • Measured -29.6dB
    • 53.4 ohms
    • 1/2W max

LTSPice 30dB.PNG

Videos

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