Journal article
Low-power operation using self-timed circuits and adaptive scaling of the supply voltage
Recent research has demonstrated that for certain types of applications like sampled audio systems, self-timed circuits can achieve very low power consumption, because unused circuit parts automatically turn into a stand-by mode. Additional savings may be obtained by combining the self-timed circuits with a mechanism that adaptively adjusts the supply voltage to the smallest possible, while maintaining the performance requirements.
This paper describes such a mechanism, analyzes the possible power savings, and presents a demonstrator chip that has been fabricated and tested. The idea of voltage scaling has been used previously in synchronous circuits, and the contributions of the present paper are: 1) the combination of supply scaling and self-timed circuitry which has some unique advantages, and 2) the thorough analysis of the power savings that are possible using this technique.>
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 1994 |
| Pages: | 391-397 |
| ISSN: | 15579999 and 10638210 |
| Types: | Journal article |
| DOI: | 10.1109/92.335008 |
| ORCIDs: | Sparsø, Jens |
Audio systems CMOS digital integrated circuits CMOS process Capacitance Circuit testing Clocks Delay estimation Energy consumption Laboratories Power dissipation Voltage adaptive scaling delays demonstrator chip low power consumption low-power operation network analysis self-timed circuits stand-by mode supply voltage scaling
