Recent development in Integrated Circuits have changed our views for these requirements and have made our lives easier. One such example is Maxim Dallas Econ oscillator chip DS1085 designed to replaced Quartz Crystal Oscillators.

DS1085 is used in this project. It can generate from 1MHZ to 133MHZ at various steps. Signal Generated may be used for various purposes. However, please keep in mind the frequency tolerance of this chip before using it in your project.

This programmer addresses two objectives. It can program your DS1085 chip located elsewhere on your project board (thru a 5pin Header Socket) and at the same time, you can reprogram installed DS1085 in this programmer for required frequency of test. Board has a small Isolation/Buffer RF amplifier and a Low Pass filter.

With this, you have a programmer for your "in Project Econ" and a Signal Generator for producing test frequencies. Space for a LPF is provided and there is an option to either bypass LPF or insert a suitable LPF for your specific needs.

Using this programmer with supplied free parallel port software, you have all doors of developments open for your projects. You will have no hesitation to use an oscillator at 9.00015, which you always wanted to have, thinking of difficulties in getting a quartz crystal.

Two kits are available:

Only programmer is a simple parallel port interface to program your econ fitted elsewhere on your project board.

Programmer + Generator Includes a DS1085 with isolation amplifier, voltage regulator, LPF (LPF : Parts not supplied) and RF Output connector.

Click the picture to enlarge

            

Click the picture to enlarge

1. Econ Programmer only (components between D25 &  H1 Header. See picture)

2. Econ Programmer Mini Kit. This kit has Programmer section fully assembled & includes essential Generator section parts like BNC Connector, DC connector & Amidon core. 

You will use your own parts to complete Generator section & also buy ECON chip from Maxim-IC or their distributors.

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