A 1-V 3.5-mW CMOS switched-opamp quadrature IF circuitry for Bluetooth receivers
A 1-V switched-capacitor (SC) quadrature IF circuitry for Bluetooth receivers is demonstrated using switched-opamp technique. To achieve double power efficiency while maintaining low sensitivity to finite opamp gain effects for the SC IF circuitry, half-delay integrator-based filters and /spl Sigma/...
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| Veröffentlicht in: | IEEE journal of solid-state circuits 2003-05, Vol.38 (5), p.805-816 |
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| container_end_page | 816 |
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| container_issue | 5 |
| container_start_page | 805 |
| container_title | IEEE journal of solid-state circuits |
| container_volume | 38 |
| creator | Cheung, V.S.-L. Luong, H.C. Chan, M. Wing-Hung Ki |
| description | A 1-V switched-capacitor (SC) quadrature IF circuitry for Bluetooth receivers is demonstrated using switched-opamp technique. To achieve double power efficiency while maintaining low sensitivity to finite opamp gain effects for the SC IF circuitry, half-delay integrator-based filters and /spl Sigma//spl Delta/ modulator have been proposed. The proposed quadrature IF circuitry employs a seventh-order IF filter for channel selection and a third-order /spl Sigma//spl Delta/ modulator for analog-to-digital conversion. A noise-shaping extension technique is employed to enhance the resolution of the low-pass /spl Sigma//spl Delta/ modulator by 16 dB while operating at the same oversampling ratio and power consumption. At a 1-V supply, the quadrature IF circuitry achieves a measured IIP3 of -3 dBm at a nominal gain of 24 dB with a 48-dB variable gain control while consuming a total power dissipation of 3.5 mW. |
| doi_str_mv | 10.1109/JSSC.2003.810031 |
| format | Article |
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To achieve double power efficiency while maintaining low sensitivity to finite opamp gain effects for the SC IF circuitry, half-delay integrator-based filters and /spl Sigma//spl Delta/ modulator have been proposed. The proposed quadrature IF circuitry employs a seventh-order IF filter for channel selection and a third-order /spl Sigma//spl Delta/ modulator for analog-to-digital conversion. A noise-shaping extension technique is employed to enhance the resolution of the low-pass /spl Sigma//spl Delta/ modulator by 16 dB while operating at the same oversampling ratio and power consumption. At a 1-V supply, the quadrature IF circuitry achieves a measured IIP3 of -3 dBm at a nominal gain of 24 dB with a 48-dB variable gain control while consuming a total power dissipation of 3.5 mW.</description><identifier>ISSN: 0018-9200</identifier><identifier>EISSN: 1558-173X</identifier><identifier>DOI: 10.1109/JSSC.2003.810031</identifier><identifier>CODEN: IJSCBC</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Analog-digital conversion ; Bluetooth ; Circuits ; Electric circuits ; Energy consumption ; Filters ; Gain ; Gain control ; Gain measurement ; Intermediate frequency ; Modulators ; Noise levels ; Noise shaping ; Power dissipation ; Power measurement ; Quadratures ; Receivers ; Switching circuits</subject><ispartof>IEEE journal of solid-state circuits, 2003-05, Vol.38 (5), p.805-816</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2003</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c352t-203d9fe0f516ddb511b861159aa490081438708d780d3888e83743854e63b9033</citedby><cites>FETCH-LOGICAL-c352t-203d9fe0f516ddb511b861159aa490081438708d780d3888e83743854e63b9033</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/1196227$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/1196227$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Cheung, V.S.-L.</creatorcontrib><creatorcontrib>Luong, H.C.</creatorcontrib><creatorcontrib>Chan, M.</creatorcontrib><creatorcontrib>Wing-Hung Ki</creatorcontrib><title>A 1-V 3.5-mW CMOS switched-opamp quadrature IF circuitry for Bluetooth receivers</title><title>IEEE journal of solid-state circuits</title><addtitle>JSSC</addtitle><description>A 1-V switched-capacitor (SC) quadrature IF circuitry for Bluetooth receivers is demonstrated using switched-opamp technique. To achieve double power efficiency while maintaining low sensitivity to finite opamp gain effects for the SC IF circuitry, half-delay integrator-based filters and /spl Sigma//spl Delta/ modulator have been proposed. The proposed quadrature IF circuitry employs a seventh-order IF filter for channel selection and a third-order /spl Sigma//spl Delta/ modulator for analog-to-digital conversion. A noise-shaping extension technique is employed to enhance the resolution of the low-pass /spl Sigma//spl Delta/ modulator by 16 dB while operating at the same oversampling ratio and power consumption. At a 1-V supply, the quadrature IF circuitry achieves a measured IIP3 of -3 dBm at a nominal gain of 24 dB with a 48-dB variable gain control while consuming a total power dissipation of 3.5 mW.</description><subject>Analog-digital conversion</subject><subject>Bluetooth</subject><subject>Circuits</subject><subject>Electric circuits</subject><subject>Energy consumption</subject><subject>Filters</subject><subject>Gain</subject><subject>Gain control</subject><subject>Gain measurement</subject><subject>Intermediate frequency</subject><subject>Modulators</subject><subject>Noise levels</subject><subject>Noise shaping</subject><subject>Power dissipation</subject><subject>Power measurement</subject><subject>Quadratures</subject><subject>Receivers</subject><subject>Switching circuits</subject><issn>0018-9200</issn><issn>1558-173X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kUtLA0EMgAdRsD7ugpfBg3jZmszsvI5afKIo1Ndt2O5mcaV125ldxX_vlAqCBy8JSb4EwsfYHsIQEdzx9Xg8GgoAObSYIq6xASplMzTyZZ0NANBmLs032VaMb6nMc4sDdn_CMXvicqiy2TMf3d6NefxsuvKVqqydF7M5X_RFFYquD8SvznnZhLJvuvDF6zbw02lPXdt2rzxQSc0HhbjDNupiGmn3J2-zx_Ozh9FldnN3cTU6uclKqUSXCZCVqwlqhbqqJgpxYjWickWROwCLubQGbGUsVNJaS1aa1FI5aTlxIOU2O1zdnYd20VPs_KyJJU2nxTu1ffTCogGd6wQe_QuiNigcCGsSevAHfWv78J7e8E4IrbRRmCBYQWVoYwxU-3loZkX48gh-qcIvVfilCr9SkVb2VysNEf3i6LQQRn4Dpe-AXA</recordid><startdate>20030501</startdate><enddate>20030501</enddate><creator>Cheung, V.S.-L.</creator><creator>Luong, H.C.</creator><creator>Chan, M.</creator><creator>Wing-Hung Ki</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20030501</creationdate><title>A 1-V 3.5-mW CMOS switched-opamp quadrature IF circuitry for Bluetooth receivers</title><author>Cheung, V.S.-L. ; Luong, H.C. ; Chan, M. ; Wing-Hung Ki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c352t-203d9fe0f516ddb511b861159aa490081438708d780d3888e83743854e63b9033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Analog-digital conversion</topic><topic>Bluetooth</topic><topic>Circuits</topic><topic>Electric circuits</topic><topic>Energy consumption</topic><topic>Filters</topic><topic>Gain</topic><topic>Gain control</topic><topic>Gain measurement</topic><topic>Intermediate frequency</topic><topic>Modulators</topic><topic>Noise levels</topic><topic>Noise shaping</topic><topic>Power dissipation</topic><topic>Power measurement</topic><topic>Quadratures</topic><topic>Receivers</topic><topic>Switching circuits</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cheung, V.S.-L.</creatorcontrib><creatorcontrib>Luong, H.C.</creatorcontrib><creatorcontrib>Chan, M.</creatorcontrib><creatorcontrib>Wing-Hung Ki</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 1998–Present</collection><collection>IEL</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE journal of solid-state circuits</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Cheung, V.S.-L.</au><au>Luong, H.C.</au><au>Chan, M.</au><au>Wing-Hung Ki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A 1-V 3.5-mW CMOS switched-opamp quadrature IF circuitry for Bluetooth receivers</atitle><jtitle>IEEE journal of solid-state circuits</jtitle><stitle>JSSC</stitle><date>2003-05-01</date><risdate>2003</risdate><volume>38</volume><issue>5</issue><spage>805</spage><epage>816</epage><pages>805-816</pages><issn>0018-9200</issn><eissn>1558-173X</eissn><coden>IJSCBC</coden><abstract>A 1-V switched-capacitor (SC) quadrature IF circuitry for Bluetooth receivers is demonstrated using switched-opamp technique. To achieve double power efficiency while maintaining low sensitivity to finite opamp gain effects for the SC IF circuitry, half-delay integrator-based filters and /spl Sigma//spl Delta/ modulator have been proposed. The proposed quadrature IF circuitry employs a seventh-order IF filter for channel selection and a third-order /spl Sigma//spl Delta/ modulator for analog-to-digital conversion. A noise-shaping extension technique is employed to enhance the resolution of the low-pass /spl Sigma//spl Delta/ modulator by 16 dB while operating at the same oversampling ratio and power consumption. At a 1-V supply, the quadrature IF circuitry achieves a measured IIP3 of -3 dBm at a nominal gain of 24 dB with a 48-dB variable gain control while consuming a total power dissipation of 3.5 mW.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/JSSC.2003.810031</doi><tpages>12</tpages></addata></record> |
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| ispartof | IEEE journal of solid-state circuits, 2003-05, Vol.38 (5), p.805-816 |
| issn | 0018-9200 1558-173X |
| language | eng |
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| source | IEL |
| subjects | Analog-digital conversion Bluetooth Circuits Electric circuits Energy consumption Filters Gain Gain control Gain measurement Intermediate frequency Modulators Noise levels Noise shaping Power dissipation Power measurement Quadratures Receivers Switching circuits |
| title | A 1-V 3.5-mW CMOS switched-opamp quadrature IF circuitry for Bluetooth receivers |
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