Blog Archives

Interpolation implementation in VHDL

This is a follow up on the previews article on the low and high pass filter designer. An algorithm is developed in order to perform interpolation. The FIR low pass filter from the last post is used in the interpolation

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Low and High pass filter designer for implementation in VHDL

This post is about digital low and high pass FIR filter design in VHDL. Implementing high/low pass filter in the digital domain has a lot of benefits compared to implementations in the analog domain. The VHDL code for an implementation

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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

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Arduino Soundcard project online

The Arduino Soundcard project is now online. This project is a proof of concept approach to transfer continuously Audio from a computer to the Arduino and play it via PWM or via a Digital Analog Converter (DAC). Audio is streamed

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