Difference between pages "Kits and Parts Mixers" and "File:TinySA 10MHz-Sinewave From DC to 30MHz .png"

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== 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 ===
 
 
* 7 MHz RF, 40 M band
 
* 16 MHz LO
 
** Si5351A square wave drive, 50 Ohm source impedance, 1.65V peak
 
* 9 MHz IF feeds Crystal Filter
 
** SSB or CW [[Crystal Filter Design|Crystal Filter Design]]
 
*** [[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]]
 
 
== Kits and Parts ADE-1 Mixer ==
 
 
* [https://kitsandparts.com/ADE.php Kits and Parts Mixer]
 
* Build and tune diplexer first
 
 
[[file:ADE-1.SCH.png]]
 
 
[[file:ADE-1.PCB.png]]
 
 
==== 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 ==
 
 
* [https://kitsandparts.com/DBDM.php Double Balanced Diode Ring Mixer Kit]
 
* Build and tune diplexer first
 
 
[[file:DBDM.SCH.png]]
 
 
[[file:DBDM.PCB.png]]
 
 
== Bridged Tee Diplexer ==
 
 
Diplexor is a bandpass/band-stop filter popularized by [https://www.youtube.com/watch?v=iVUv8C-8g-Y 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.
 
 
=== LTSpice simulation ===
 
 
* 9 MHz
 
* FT37-67, 20T-12" = 8 uH
 
* T37-17, 13T-10" = 250 nH
 
* C2 adjusts peak from left to right
 
 
[[FILE:DIPLEXER_SPICE_SIM.PNG]]
 
 
* [https://www.changpuak.ch/electronics/calc_16a.php Diplexer Calculator (Bridged Tee) Diplexer Calculator]
 
* [https://www.qsl.net/g3oou/mixerterminations.html Mixer Diplexer description]
 
 
[[file:Diplexer.PNG]]
 
 
[[file:Diplexer_pass.PNG]]
 
 
<video type="youtube">zOk_0IiIgZY</video>
 
 
== Videos ==
 
 
<video type="youtube">GvadQpkZ8l0</video>
 

Revision as of 11:41, 1 October 2021