oops. the ascii art width was too large. umm. This is like what i am getting: (y) | | | | | o |o| ||| ||| ||| ||| ||| ||| o ||| | o ||| | | o |||_|_|______|_____________________o_______________________o_ 0 1k 2k 3k 4k 5k 6k 7k 8k 9k 10k (K) This is what the goertzel function is showing: (and Windows Media Player etc too) (y) | | | | o | o | |o| o o | ||| | o | | o ||| | | | | | ||| | | | | | ||| | | | | | ||| | | | | | ||| | | | | | ||| | | | | | ||| | | | | | |||_|_|______|_____________________|_______________________|_ 0 1k 2k 3k 4k 5k 6k 7k 8k 9k 10k (K)
Goertzel Algorithm: Help Needed
Started by ●December 31, 2009
Reply by ●January 5, 20102010-01-05
Reply by ●January 5, 20102010-01-05
Hello all, Could you suggest a reading about the effects of clock jitter in delta-sigma ADCs ? How does it affect SNR, THD, IMD, SFDR ? For some reason, this practical aspect is not mentioned in the ADC datasheets and manuals; the typical phrase is "good quality low jitter clock should be provided", whatever it means. It shouldn't be too difficult to figure out the numbers by hand; however I am pretty sure there must be a closed form solution already. Vladimir Vassilevsky DSP and Mixed Signal Design Consultant http://www.abvolt.com