Dear group members,
This is not an oscilloscope but it is a good company of it. We believe it will benefit many oscilloscope users.
We are finalizing the hardware design of a simple DDS function generator kit (please see attachment for photo). It is built on two AVR chips and capable to do 2.5Msps D/A with 8bit resolution. The waveform buffer is 256 bytes in size which is user programmable. Presently we have implemented or are going to implement following features.
1 ) Generating standard waveforms including sine, square, triangle, ramp, stair ...
2 ) Genearting NTSC/PAL video related signals including stripe (mono), composite synchorous, vertical sync only, horizontal sync only, ...
3 ) Generating servo test/control signal
4 ) Frequency can be set directly by digits with resolution down to 1Hz
5 ) Period can be set directly by digits with resolution down to 1ms
6 ) Amplitude can be set directly by digits with resolution of 0.01V in 0 - 5V range
7 ) Frequency sweeping
8 ) Arbitary waveform generation (AWG). Waveform data can be downloaded via a serial connection.
We would like have ideas/suggestions for
1 ) what other waveforms/features desirable
2 ) particularly, what is the best format for AWG data. We are hoping for something simple and easy to use and don't need specific tool.
Any comments/suggestions are greatly appreciated.
Zemin