Blog Archives

Frequency generator based on the LTC6946

A new project is online: A frequency generator from theoretically 0.37 GHz to 3.740 GHz output frequency. It is based on the LTC6946-1 from Linear Technology, an Ultralow Noise 0.37 GHz to 3.740 GHz Integer N Synthesizer with Integrated VCO.

Tagged with: , , , , , , , , , , , , , ,
Posted in Uncategorized

Arduino Due clone based on the Atmel SAM3X8E, KiCAD design

This project came up to test PCB design with KiCAD. Some Atmel SAM3X8E microprocessors were available, the same as one finds on the Arduino Due, and I got tired on the limitations of the free version of Eagle. So I

Tagged with: , , , , , , , , , , , , , , , ,
Posted in Uncategorized

Breakout board for the DAC900E a 165 MSPS @ 10 Bit DAC

This breakout board helps me to interface my FPGA with the DAC900E from Texas Instruments. The DAC has 165 MSPS and 10 bits which is quite some speed. The combination FPGA and DAC opens up for experiments with digital signal

Tagged with: , , , , , , , , , , , , , , , , , , ,
Posted in Uncategorized

Arduino controlled Frequency Generator 1kHz – 68 MHz

This project is a description of how to build a signal generator with an output frequency from 1kHz to 68 MHz. The frequency generation is handled by a small Programmable Oscillator from Linear Technology the LTC6903. The control of the

Tagged with: , , , , , , , , , , , , , , , , ,
Posted in Uncategorized

Design of a FPGA PCB including USB2.0 interface and two 80 MHz ADCs

This is my most advanced homemade PCB design until now. The PCB contains a EP3C5E144C8N Cyclone III FPGA from ALTERA, two 8 bit ADCs AD9057 from Analog Devices @ 80 MHz, a FTDI USB2.0 controller and many other things. The

Tagged with: , , , , , , , , , , , , , , , , , , , , , ,
Posted in Uncategorized

PCB tinning including VIA soldering

This is some method I found on the net for solving the problem of protecting the cooper of self produced PCBs. What is done is the PCB is tinned before parts are soldered on it. I discovered that this was

Tagged with: , , , , , , , , , , , ,
Posted in Uncategorized

Raspberry Pi as a Macro Camera

This post describes how to use the Raspberry Pi camera as a Macro camera. I use it to do control checks when soldering PCBs with very small components. It is very convenient since I get the picture directly on the

Tagged with: , , , , , , , ,
Posted in Uncategorized