Amateur Radio Site Of  VE1XYL & VE1ALQ, or VE9DW  

See the New Versatile4 GPS PLL Board Below. See price list below, no additional cost for Gain Control

  This is Image of Number 999,1000 & 1011 PLL Boards Shipped Now 1078 in service.

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  Image can be seen here as well, connected for Versatile 2 or 4.

  Anyone wishing to purchase the Origional Version 1 PLL Versatile1 board using 1pps please contact me for prices please. Using this E-mail Form:

  CPLD Versatile-2 PLL Synthesizer *N (LO), Binary Selected Dividable from 50 to 2047, and *R* (Ref.) Dividable by:
100, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, & 25.

Production Schematic of New PLL Board Versatile Board for ver2 and ver4 + 1pps if required

   New PLL Version 4 PLL Board For Versatile1, 2 & 4 Code

  Here is an EXCEL Spread Sheet to Determine Your Division Ratios. OpenOffice2 will work just as well as MS Office.     http://www.openoffice.org/

  This New Board will accommodate any of Luis's(CT1DMK) Universal, or Classic, and 1pps .POF files as they exists from earlier design using the  EPM3032, or EPM3064 Altera Devices, but with the very successful saturating PNP Front End design. Also the 10Khz Ref input POF File, and can be found at Luis's link above.

This system is TRUE XOR Phase comparitor, and extremely clean. It needs not USB connection to change VCXO operating Freq. simply connect you VCXO and change jumper on the fly (hot connected) to lock the VCXO. This system produce very, very low Phase Noise, but close in spurs is determined by the VCXO XTAL Osc. A 7th Overtone XTAL is preferred, but not alway available below 120Mhz.

This PLL also does NOT require a divide by??? to run up to 300Mhz as some I have heard about. And there is NO DDS involved to elevate your system noise floor.

All PLL's should operate at the XTAL Freq. and this system requires a very small signal of -12dbm or less to function with.

Please see this PDF for functional applications, still more work needed on PDF, but this is a start

  I have heard this System at 47Ghz, and it sounds like a free Running XTAL, there was a slight warble in two of the VCXO's, but NOT on another Frequency West Brick at 47Ghz. That Warble was present with, or without, the PLL attached and Locked, Obviously different XTAL's, the Regulator was suspect at this Freq. but the regulator has since been ruled out.

  Examples of 47Ghz LO with and without Warble, Waddle, or whatever you wish to call it.

Video Using Scope to Tune Phase Locking of VCXO on XOR Line of PLL Board

Video File of tuning VCXO using Analog Meter on V-Tune Line of PLL.

Another example of Locking VCXO to PLL Board.

Video of Saturated PNP pair input devices and how little to drive them to Saturation.

Determine the mV required to obtain -15dbm

  PDF Files To help answer at least as few of the Questions??

New PDF File that may help you configure your PLL System, ------PART 1, Part 2 to follow

  Think about it, these were 106Mhz XTAL's Multiplied ~442 time to reach the LO for 144Mhz IF. I hope to have some Audio Files available soon.

  This new PLL board offers and adjustable Tuning Voltage from 2 to approx. 10VDC. Adjustable Gain is also available on the latest PLL Board. This allows for a much broader selection of Varicaps in your VCXO, and well as XTAL *Q*, such as 7th overtone. This PLL also allows for changing the V-tune line Voltage gain to what ever suites your application.

Keep in Mind :

For a good 5th overtone, 95 to 120 MHz low phase noise crystal, typical specs are as follows:

Static capacitance = 1.7 pf, motional capacitance  = 0.24 ff, motional inductance = 10.25 mH,     Q  approximates 120,000, typical phase   noise @ 100 hz approximates 115-135 db. While tending to maximize Q for low phase noise, it is not the only design criteria. Most oscillator designers utilize high drive & low motional capacitance for low phase noise. This means that the crystal has little pull for setting frequency. For example: the crystals depicted above approximate 0.1-0.2 ppm/pf pull.

  The crystal pull ability is a function of the inverse of the overtone squared. If the pull as a fundamental is X, the pull for a 3rd OT is X/9, the pull for a 5th OT is X/25, 7th OT X/49, etc. Low phase noise, low ageing, etc all work best on overtone crystals.

  Now for some DEMI Micro-LO 7th high Q overtone Osc's. Demo films below.

  Here is a FLASH file of a DEMI Micro-LO that is exceptionally stable and locked solid for days.

  This is an FLASH Movie of the 6cm DEMI Micro-LO running at 187.200000Mhz but packaged and ready to install, after I remove my Frequency West Brick. Also shown in the background is the Micro-LO above packaged and ready for 2304.

  These are all 7th overtone XTAL's and very high Q as all 7th overtone are.

  Coupling to Micro-LO is via a small Audio Cable through a 220R + 8.2pF Cap in Series on the Micro-LO Board and across a 51R Resister on the PLL Board,   extremely small signal required. This applies if you are using 10Mhz or 10Khz Reference, 10Khz as applied from Jupiter Interface & GPS Engine

  Under Side Of 10Ghz DEMI Micro-LO Board as connected to PLL

  An Excellent Example of this is the DEMI Micro-LO Osc.using 7th Overtone that can be hindered by the 2nd & 3rd Harmonic. More information to Follow, I have 3 that     This configuration has been locked for weeks now on for a couple of weeks

      Image showing Harmonic Filters

   Image Showing Solid Locking approach

 

  Newly Populated & Programmed CPLD Board. Please NOTE: This board accepts Male Headers and ShortingJumpers in exact numerical order and , no more Wire Jumpers required.

  Price of this New Version 4 Versatile1, 2 or 4 PLL Board is $109.50, Plus SHIPPING of $11.00 First Class Post with no Tractability GB & Europe, Priority Post to Europe and GB is now $29.00USD with Tractability.

To Place an Order.......Note: My Mailing Address is located on this Mail Form as well as OK on QRZ.COM

PDF File briefly describing the PLL Systems, including the 10Khz Ref. input board. Approx. 600K

 Folks I make nearly nothing on these Boards, and spend many hours, purchasing compoents, maintaining inventory and assembling, pogramming and  testing final product.  

Shopping Cart available for those who wish to use PayPal. I Still Prefer Form Mail, There is an additional $5.00 added to cover PayPal cost.

How I determine correct Loop Filter Components by Simulation This one is 300Khz and paying with the Loop Gain Pot. Top Trace is the V-tune line to VCXO, Square wave is the XOR output when locked to center of locking range.

This one is Set up for 10Khz Ref. Freq. I do not touch the Filter Pots in this one at all.

This is rather neat (dirty) when you attempt to run a 10Khz Ref. on a Loop Filter Desesigned for 200 to 400Khz. Hope I have the correct video associated, hi hi

This board also offers a -(minus) 2 to 10VDC output as well for those who may need that function for 10Mhz & Several 100Mhz Osc. that require a Negative going Voltage....otherwise consider it as option perhasp not Required.

 

If You need a Board (s), please contact me by form mail.

This is a NEW extremely (versatile PLL), system using Binary Coded Jumpers to select VCXO, or XTAL Freq, division at both the LO & Ref Freq. This system will operate to 350Mhz without Pre-Scalar as well as all PLL Systems should.

Flash movie of a DEMI Micro-LO, very impressive using this new board

This New VERSATILE Design eliminates the many short Falls of the of the Ref-Lock version as it was called, 94.666667Mhz is just as clean as 106Mhz, 106.5Mhz, or 106.8000Mhz, 120.000Mhz, 189.333333Mhz, etc, etc. Example of Programming Jumpers are shown on the schematics.

The Power Supply configuration remains the same as Luis's origional, with one exception: The +5V Regulator MUST be changed to at least a       78M05 (500mA) device. the total current consumption is in the order of 120mA with the new Microwave Input PNP's consuming approx. 20 to 24mA at each input.

VCXO, Or XTAL Freq. is Dividable from: 50 to 2047 by Binary selection of n0 thorugh n14....this means 16383
division possibilities. Minimum Division = 50 and Maximum Division = 2047 for LO input port, or n0 to n14, 50 to 2047 and Ref. 100, 95, 90, 85, 80, 75, 70, 65, 60, 55, 50, 45, 40, 35, 30, & 25,

-There are 3 versions of the Versatile PLL Board:

1/ Versatile 2 supports 10Mhz as the Reference Freq.

2/ Versatile 4 supports 10Khz as Reference Freq.

3/ Versatile 1 supports 1pps as the Ref Freq. This one does require the EPM3264ATC-4 CPLD

This PDF File that may be less congested and MORE informative,

LATEST PDF with setup procedure. Right Click and save

Note the LO and Ref Freq. Input now use 2 X BTF92 PNP Microwave devices (differential pair limiters), at each input and extremely clean and usabe to at least 330Mhz.

Silkscreen Lawout

Note the correct numerical sequence of the Binary Jumpers, relative to the earlier board

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