Best usage of free-space capacitors in ASIC regulators
In this work we examine how to improve the performance of voltage regulators in application specific integrated circuits (ASICs) by placing capacitors into free layout space. The problem arising after layout, when there are areas not covered by functional elements, is where to connect the free-space...
| Main Authors: | , , |
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| Format: | Article |
| Language: | deu |
| Published: |
Copernicus Publications
2013-07-01
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| Series: | Advances in Radio Science |
| Online Access: | http://www.adv-radio-sci.net/11/125/2013/ars-11-125-2013.pdf |
| _version_ | 1811285788977004544 |
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| author | T. Maier D. Droste M. Siegel |
| author_facet | T. Maier D. Droste M. Siegel |
| author_sort | T. Maier |
| collection | DOAJ |
| description | In this work we examine how to improve the performance of voltage regulators
in application specific integrated circuits (ASICs) by placing capacitors
into free layout space. The problem arising after layout, when there are
areas not covered by functional elements, is where to connect the free-space
capacitors (FSCs), as they can be connected to the input or the output net of
a voltage regulator. Therefore we designed a testbench for mathematical
calculations and one for simulations to identify the influence of a
capacitance connected at these certain positions. We mainly focused on PSR
analysis while not losing sight of transient effects. The results of
calculation and simulation illustrate that the best solution is to split the
capacitance half by half to both possible nets if no output capacitance was
installed during design. Otherwise a ratio of one to one for input capacitance to
output capacitance has to be set up for best performance. |
| first_indexed | 2024-04-13T02:49:12Z |
| format | Article |
| id | doaj.art-12dec5f8583b4583843681470c75c4c0 |
| institution | Directory Open Access Journal |
| issn | 1684-9965 1684-9973 |
| language | deu |
| last_indexed | 2024-04-13T02:49:12Z |
| publishDate | 2013-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Advances in Radio Science |
| spelling | doaj.art-12dec5f8583b4583843681470c75c4c02022-12-22T03:05:53ZdeuCopernicus PublicationsAdvances in Radio Science1684-99651684-99732013-07-011112513010.5194/ars-11-125-2013Best usage of free-space capacitors in ASIC regulatorsT. Maier0D. Droste1M. Siegel2Robert Bosch GmbH, Reutlingen, GermanyRobert Bosch GmbH, Reutlingen, GermanyKarlsruher Institut für Technologie (KIT), Karlsruhe, GermanyIn this work we examine how to improve the performance of voltage regulators in application specific integrated circuits (ASICs) by placing capacitors into free layout space. The problem arising after layout, when there are areas not covered by functional elements, is where to connect the free-space capacitors (FSCs), as they can be connected to the input or the output net of a voltage regulator. Therefore we designed a testbench for mathematical calculations and one for simulations to identify the influence of a capacitance connected at these certain positions. We mainly focused on PSR analysis while not losing sight of transient effects. The results of calculation and simulation illustrate that the best solution is to split the capacitance half by half to both possible nets if no output capacitance was installed during design. Otherwise a ratio of one to one for input capacitance to output capacitance has to be set up for best performance.http://www.adv-radio-sci.net/11/125/2013/ars-11-125-2013.pdf |
| spellingShingle | T. Maier D. Droste M. Siegel Best usage of free-space capacitors in ASIC regulators Advances in Radio Science |
| title | Best usage of free-space capacitors in ASIC regulators |
| title_full | Best usage of free-space capacitors in ASIC regulators |
| title_fullStr | Best usage of free-space capacitors in ASIC regulators |
| title_full_unstemmed | Best usage of free-space capacitors in ASIC regulators |
| title_short | Best usage of free-space capacitors in ASIC regulators |
| title_sort | best usage of free space capacitors in asic regulators |
| url | http://www.adv-radio-sci.net/11/125/2013/ars-11-125-2013.pdf |
| work_keys_str_mv | AT tmaier bestusageoffreespacecapacitorsinasicregulators AT ddroste bestusageoffreespacecapacitorsinasicregulators AT msiegel bestusageoffreespacecapacitorsinasicregulators |