True Filterless Class-D Audio Amplifier
The design of a fully integrated, filterless, class-D audio amplifier in standard 0.25- CMOS technology is described: a novel class-D amplifier architecture, where uniform pulsewidth modulation is introduced. The architecture attenuates residual clock signals around the loop allowing very low harmon...
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| Veröffentlicht in: | IEEE journal of solid-state circuits 2011-12, Vol.46 (12), p.2784-2793 |
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| container_end_page | 2793 |
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| container_issue | 12 |
| container_start_page | 2784 |
| container_title | IEEE journal of solid-state circuits |
| container_volume | 46 |
| creator | Teplechuk, M. A. Gribben, T. Amadi, C. |
| description | The design of a fully integrated, filterless, class-D audio amplifier in standard 0.25- CMOS technology is described: a novel class-D amplifier architecture, where uniform pulsewidth modulation is introduced. The architecture attenuates residual clock signals around the loop allowing very low harmonic distortion, , to be achieved in conjunction with high PSRR, at 217 Hz. When driving 1.2 W into an 8- load, it achieves an SNR of 103 dB (A-weighted) with an efficiency of . The maximum output power at 1% THD is 3.1 W. Figures of merit are defined to establish that the amplifier exceeds the performance of alternative designs. The amplifier occupied a chip area 1.44 and was packaged as a WLCSP. |
| doi_str_mv | 10.1109/JSSC.2011.2162913 |
| format | Article |
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Solid state devices ; switch mode amplifier ; Switches ; switching amplifiers ; Switching, multiplexing, switched capacity circuits ; total harmonic distortion (THD) ; true filterless Class-D amplifier ; uniform pulsewidth modulation (UPWM)</subject><ispartof>IEEE journal of solid-state circuits, 2011-12, Vol.46 (12), p.2784-2793</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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A.</creatorcontrib><creatorcontrib>Gribben, T.</creatorcontrib><creatorcontrib>Amadi, C.</creatorcontrib><title>True Filterless Class-D Audio Amplifier</title><title>IEEE journal of solid-state circuits</title><addtitle>JSSC</addtitle><description>The design of a fully integrated, filterless, class-D audio amplifier in standard 0.25- CMOS technology is described: a novel class-D amplifier architecture, where uniform pulsewidth modulation is introduced. The architecture attenuates residual clock signals around the loop allowing very low harmonic distortion, , to be achieved in conjunction with high PSRR, at 217 Hz. When driving 1.2 W into an 8- load, it achieves an SNR of 103 dB (A-weighted) with an efficiency of . The maximum output power at 1% THD is 3.1 W. Figures of merit are defined to establish that the amplifier exceeds the performance of alternative designs. The amplifier occupied a chip area 1.44 and was packaged as a WLCSP.</description><subject>Amplifiers</subject><subject>Applied sciences</subject><subject>Audio power amplifier</subject><subject>Circuit properties</subject><subject>Circuits of signal characteristics conditioning (including delay circuits)</subject><subject>class-D amplifier</subject><subject>Design. Technologies. Operation analysis. Testing</subject><subject>efficiency</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronic circuits</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>filterless</subject><subject>Frequency modulation</subject><subject>Harmonic analysis</subject><subject>Integrated circuits</subject><subject>intermodulation distortion (IMD)</subject><subject>linearity</subject><subject>power supply rejection ratio (PSRR)</subject><subject>Pulse width modulation</subject><subject>pulsewidth modulation (PWM)</subject><subject>sample and hold (SAH)</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><subject>switch mode amplifier</subject><subject>Switches</subject><subject>switching amplifiers</subject><subject>Switching, multiplexing, switched capacity circuits</subject><subject>total harmonic distortion (THD)</subject><subject>true filterless Class-D amplifier</subject><subject>uniform pulsewidth modulation (UPWM)</subject><issn>0018-9200</issn><issn>1558-173X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE9LAzEQxYMoWKsfQLwsgnjaOpNsdpNj2Vr_UPDQCt5CNk0gZdutSffgtzdLS0_DML_3ZuYRco8wQQT58rlc1hMKiBOKJZXILsgIORc5VuznkowAUOSSAlyTmxg3qS0KgSPyvAq9zea-PdjQ2hizutUx5rNs2q99l023-9Y7b8MtuXK6jfbuVMfke_66qt_zxdfbRz1d5IZResgbrrESnGkHTqNLO6TjuihMwdEAVoWxDVszsK6RvKEFlQbMGqACZoWRmo3J49F3H7rf3saD2nR92KWVKj1VUSGFSBAeIRO6GIN1ah_8Voc_haCGONQQhxriUKc4kubpZKyj0a0Lemd8PAspZ1VZVmXiHo6ct9aex-VwYsnYP5-4ZkQ</recordid><startdate>20111201</startdate><enddate>20111201</enddate><creator>Teplechuk, M. A.</creator><creator>Gribben, T.</creator><creator>Amadi, C.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20111201</creationdate><title>True Filterless Class-D Audio Amplifier</title><author>Teplechuk, M. 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Testing</topic><topic>efficiency</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electronic circuits</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>filterless</topic><topic>Frequency modulation</topic><topic>Harmonic analysis</topic><topic>Integrated circuits</topic><topic>intermodulation distortion (IMD)</topic><topic>linearity</topic><topic>power supply rejection ratio (PSRR)</topic><topic>Pulse width modulation</topic><topic>pulsewidth modulation (PWM)</topic><topic>sample and hold (SAH)</topic><topic>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</topic><topic>switch mode amplifier</topic><topic>Switches</topic><topic>switching amplifiers</topic><topic>Switching, multiplexing, switched capacity circuits</topic><topic>total harmonic distortion (THD)</topic><topic>true filterless Class-D amplifier</topic><topic>uniform pulsewidth modulation (UPWM)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Teplechuk, M. A.</creatorcontrib><creatorcontrib>Gribben, T.</creatorcontrib><creatorcontrib>Amadi, C.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE journal of solid-state circuits</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Teplechuk, M. A.</au><au>Gribben, T.</au><au>Amadi, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>True Filterless Class-D Audio Amplifier</atitle><jtitle>IEEE journal of solid-state circuits</jtitle><stitle>JSSC</stitle><date>2011-12-01</date><risdate>2011</risdate><volume>46</volume><issue>12</issue><spage>2784</spage><epage>2793</epage><pages>2784-2793</pages><issn>0018-9200</issn><eissn>1558-173X</eissn><coden>IJSCBC</coden><abstract>The design of a fully integrated, filterless, class-D audio amplifier in standard 0.25- CMOS technology is described: a novel class-D amplifier architecture, where uniform pulsewidth modulation is introduced. The architecture attenuates residual clock signals around the loop allowing very low harmonic distortion, , to be achieved in conjunction with high PSRR, at 217 Hz. When driving 1.2 W into an 8- load, it achieves an SNR of 103 dB (A-weighted) with an efficiency of . The maximum output power at 1% THD is 3.1 W. Figures of merit are defined to establish that the amplifier exceeds the performance of alternative designs. The amplifier occupied a chip area 1.44 and was packaged as a WLCSP.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/JSSC.2011.2162913</doi><tpages>10</tpages></addata></record> |
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| identifier | ISSN: 0018-9200 |
| ispartof | IEEE journal of solid-state circuits, 2011-12, Vol.46 (12), p.2784-2793 |
| issn | 0018-9200 1558-173X |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Amplifiers Applied sciences Audio power amplifier Circuit properties Circuits of signal characteristics conditioning (including delay circuits) class-D amplifier Design. Technologies. Operation analysis. Testing efficiency Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology filterless Frequency modulation Harmonic analysis Integrated circuits intermodulation distortion (IMD) linearity power supply rejection ratio (PSRR) Pulse width modulation pulsewidth modulation (PWM) sample and hold (SAH) Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices switch mode amplifier Switches switching amplifiers Switching, multiplexing, switched capacity circuits total harmonic distortion (THD) true filterless Class-D amplifier uniform pulsewidth modulation (UPWM) |
| title | True Filterless Class-D Audio Amplifier |
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