3 ms·
That sine wave shaping network is blowing my mind! I've always wondered how function generators do that, and I knew filtering would only work at one frequency.
by myself248 5y ago
That sine wave shaping network is blowing my mind! I've always wondered how function generators do that, and I knew filtering would only work at one frequency.
The diode-resistor network is all sorts of elegant. Using twelve resistors of carefully chosen values though, tolerance issues must be tricky. I'd imagine laser-trimmed networks being a good fit for that topology.
Is that likely used in monolithic function generator chips like the XR2206?
- kens 5y agoI looked at the XR2206 datasheet. It has a "sine shaper", but from the schematic it isn't a resistor-diode network. It's not immediately obvious to me how that sine shaper works. https://www.sparkfun.com/datasheets/Kits/XR2206_104_020808.pdf https://www.sparkfun.com/datasheets/Kits/XR2206_104_020808.p...