Title :
Bandpass spread spectrum clocking for reduced clock spurs in autozeroed amplifiers
Author :
Tang, Andrew T K
Author_Institution :
Analog Devices Inc., San Jose, CA, USA
Abstract :
Amplifiers utilizing autozeroing suffer from clock spurs at the sampling frequency. This paper describes a method of controlling the clock in order to reduce the amplitude of the spurs in the frequency domain, allowing a wider spurious-free dynamic range for signals with bandwidths approaching or exceeding the sampling frequency. Improvements of 20 dB were measured when using this technique
Keywords :
amplifiers; clocks; amplifier; autozeroing; bandpass spread spectrum clocking; bandwidth; clock spur; frequency domain; sampling frequency; spurious-free dynamic range; Bandwidth; Broadband amplifiers; Clocks; Frequency; Low-frequency noise; Noise cancellation; Noise reduction; Sampling methods; Spread spectrum communication; Voltage;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921943
