Parts: 133MHz-16.2kHz programmable oscillator (DS1077)

posted Nov 28th 2008 10:39am by Ian
filed under: misc hacks, parts

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The DS1077 is a 5volt, 133MHz to 16kHz programmable clock source. The internal frequency divider is configured over a simple I2C interface, and the chip requires no external parts. Not bad for under $2. We used the Bus Pirate to test this chip before using it in a project. Grab the datasheet (PDF) and follow along. Read the rest of this entry »

How-To: Make a digital synthesizer

posted May 1st 2008 11:55am by loganwilliams
filed under: how-to

This week’s How-To comes from our newest contributor: Logan Williams.

This simple guide will show you how to build a digital synthesizer that generates and manipulates square waves. Your synthesizer will have one oscillator, which produces a variable pitch controlled by a potentiometer, as well as an LFO which modulates that pitch at a variable frequency. The part count for this project is quite low, and it can be built for under $20.

Read the rest of this entry »




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