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Square Wave to Sine Wave
- Thread starter DPJ
- Start date
There are several ways depending requirements:
1.) CMOS buffer ( for constant amplitude ) followed by multipole lowpass filter.
2.) Multiply frequency e.g. by 256 using phase lock loop
-- ROM sine wave look-up table -- DAC . If multiplier is low, follow by low pass filter.
3.) Use MC1648 VCO in PLL -- it has AGC.
If need more help send specs to nbucska@pcperipherals.com
Good luck Nick
1.) CMOS buffer ( for constant amplitude ) followed by multipole lowpass filter.
2.) Multiply frequency e.g. by 256 using phase lock loop
-- ROM sine wave look-up table -- DAC . If multiplier is low, follow by low pass filter.
3.) Use MC1648 VCO in PLL -- it has AGC.
If need more help send specs to nbucska@pcperipherals.com
Good luck Nick
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