Difference between revisions of "Kits and Parts Mixers"

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*** [[Crystal Filter Design#SSB 4 Crystal Filter on Kits and Parts Board|SSB4 Crystal filter]]
 
*** [[Crystal Filter Design#SSB 4 Crystal Filter on Kits and Parts Board|SSB4 Crystal filter]]
 
*** [[Crystal_Filter_Design#CW 5 Crystal Filter on Kits and Parts Board|CW5 Crystal Filter]]
 
*** [[Crystal_Filter_Design#CW 5 Crystal Filter on Kits and Parts Board|CW5 Crystal Filter]]
 
==== Toroid Winding Direction ====
 
 
* Toroids needs to be wound to match the pad locations/offsets on the PCB
 
 
[[file:toroid-cw.jpg]]
 
  
 
== Kits and Parts ADE-1 Mixer ==
 
== Kits and Parts ADE-1 Mixer ==
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[[file:ADE-1.PCB.png]]
 
[[file:ADE-1.PCB.png]]
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 +
==== Toroid Winding Direction ====
 +
 +
* Toroids needs to be wound to match the pad locations/offsets on the PCB
 +
 +
[[file:toroid-cw.jpg]]
  
 
== Kits and Parts Diode Mixer ==
 
== Kits and Parts Diode Mixer ==

Revision as of 11:27, 27 September 2021

Kits and Parts Mixers Features in Common

  • All Ports are 50Ω
  • +7dBm Local Oscillator Injection Design
  • Full Diplexer at the IF Port
  • Optional Attenuators for RF & LO Ports
  • Available as bare PCB or kit of parts

My Typical Applications

Kits and Parts ADE-1 Mixer

ADE-1.SCH.png

ADE-1.PCB.png

Toroid Winding Direction

  • Toroids needs to be wound to match the pad locations/offsets on the PCB

Toroid-cw.jpg

Kits and Parts Diode Mixer

DBDM.SCH.png

DBDM.PCB.png

Bridged Tee Diplexer

  • LTSpice simulation
    • 9 MHz
    • FT37-67, 20T-12" = 8 uH
    • T37-17, 13T-10" = 250 nH
  • C2 adjusts peak from left to right

DIPLEXER SPICE SIM.PNG

Diplexor is a bandpass/band-stop filter popularized by Joe Reisert W1JR that is used after a double Balanced Mixer to provide a 50 ohm termination to all frequencies at the mixer's IF port, and to the following amplifier stage. Maintaining a consistent load at the mixer avoids overload and Inter-Modulation Distortion (IMD) effects that these mixers are prone to when not properly terminated.

Diplexer.PNG

Diplexer pass.PNG

Videos

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