Programmable spread spectrum clock generation based on successive phase selection technique

A wideband frequency modulator capable of modulating the input frequency within a range of 0.5% to 5% with a programmable step of 0.5% is presented. The block has been built in 65nm technology with a low power consumption of 1mW. The proposed topology uses a period locking delay locked loop, phase i...

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Bibliographic Details
Main Authors: Saraswat, Ruchir, Zillmann, Uwe, Supriyanto, Supriyanto, Droege, Guido, Bretthauer, Ulrich
Format: Conference Proceeding
Language:English
Subjects:
Clocks
Digital modulation
Energy consumption
Frequency modulation
Modulation coding
Phase modulation
Shape control
Spread spectrum communication
Topology
Wideband
Online Access:Request full text
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Description
Summary:A wideband frequency modulator capable of modulating the input frequency within a range of 0.5% to 5% with a programmable step of 0.5% is presented. The block has been built in 65nm technology with a low power consumption of 1mW. The proposed topology uses a period locking delay locked loop, phase interpolator and a digital controller to modulate the input frequency and gives the flexibility of controlling the shape of the modulating signal.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2008.4542050