Low-Voltage Low-Power Filters with Independent <i<ω</i<<sub<0</sub< and <i<Q</i< Tuning for Electronic Cochlea Applications
An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub&l...
Ausführliche Beschreibung
Autor*in: |
Waldemar Jendernalik [verfasserIn] Jacek Jakusz [verfasserIn] Grzegorz Blakiewicz [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2022 |
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Übergeordnetes Werk: |
In: Electronics - MDPI AG, 2013, 11(2022), 4, p 534 |
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Übergeordnetes Werk: |
volume:11 ; year:2022 ; number:4, p 534 |
Links: |
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DOI / URN: |
10.3390/electronics11040534 |
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Katalog-ID: |
DOAJ031661629 |
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10.3390/electronics11040534 doi (DE-627)DOAJ031661629 (DE-599)DOAJ225bb7b3861f449cad9c833267736b10 DE-627 ger DE-627 rakwb eng TK7800-8360 Waldemar Jendernalik verfasserin aut Low-Voltage Low-Power Filters with Independent <i<ω</i<<sub<0</sub< and <i<Q</i< Tuning for Electronic Cochlea Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub<0</sub<) and the <i<Q</i<-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low <i<Q</i<-factor sensitivity to component mismatch. These filter features greatly simplify the implementation of the electronic cochlea in CMOS technologies. An exemplary filter bank designed and simulated in an X-FAB 180 nm CMOS process is presented, which consumes 1.25–34.75 nW of power per individual filter when supplied with 0.5 V. The 11-channel filter bank covers a 20–20 kHz band, while the <i<Q</i<-factor of each channel can be tuned from 2 to 40. The simulation-predicted sensitivities of <i<Q</i< and <i<ω</i<<sub<0</sub< to process/voltage/temperature (PVT) variations are less than 1%. The input-referred noise is no greater than 22 µV<sub<RMS</sub<, and the dynamic range is at least 68 dB for all filters in the bank. analog filters low-frequency filters audio filters low-power circuits analog integrated circuits CMOS analog circuits Electronics Jacek Jakusz verfasserin aut Grzegorz Blakiewicz verfasserin aut In Electronics MDPI AG, 2013 11(2022), 4, p 534 (DE-627)718626478 (DE-600)2662127-7 20799292 nnns volume:11 year:2022 number:4, p 534 https://doi.org/10.3390/electronics11040534 kostenfrei https://doaj.org/article/225bb7b3861f449cad9c833267736b10 kostenfrei https://www.mdpi.com/2079-9292/11/4/534 kostenfrei https://doaj.org/toc/2079-9292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2022 4, p 534 |
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10.3390/electronics11040534 doi (DE-627)DOAJ031661629 (DE-599)DOAJ225bb7b3861f449cad9c833267736b10 DE-627 ger DE-627 rakwb eng TK7800-8360 Waldemar Jendernalik verfasserin aut Low-Voltage Low-Power Filters with Independent <i<ω</i<<sub<0</sub< and <i<Q</i< Tuning for Electronic Cochlea Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub<0</sub<) and the <i<Q</i<-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low <i<Q</i<-factor sensitivity to component mismatch. These filter features greatly simplify the implementation of the electronic cochlea in CMOS technologies. An exemplary filter bank designed and simulated in an X-FAB 180 nm CMOS process is presented, which consumes 1.25–34.75 nW of power per individual filter when supplied with 0.5 V. The 11-channel filter bank covers a 20–20 kHz band, while the <i<Q</i<-factor of each channel can be tuned from 2 to 40. The simulation-predicted sensitivities of <i<Q</i< and <i<ω</i<<sub<0</sub< to process/voltage/temperature (PVT) variations are less than 1%. The input-referred noise is no greater than 22 µV<sub<RMS</sub<, and the dynamic range is at least 68 dB for all filters in the bank. analog filters low-frequency filters audio filters low-power circuits analog integrated circuits CMOS analog circuits Electronics Jacek Jakusz verfasserin aut Grzegorz Blakiewicz verfasserin aut In Electronics MDPI AG, 2013 11(2022), 4, p 534 (DE-627)718626478 (DE-600)2662127-7 20799292 nnns volume:11 year:2022 number:4, p 534 https://doi.org/10.3390/electronics11040534 kostenfrei https://doaj.org/article/225bb7b3861f449cad9c833267736b10 kostenfrei https://www.mdpi.com/2079-9292/11/4/534 kostenfrei https://doaj.org/toc/2079-9292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2022 4, p 534 |
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10.3390/electronics11040534 doi (DE-627)DOAJ031661629 (DE-599)DOAJ225bb7b3861f449cad9c833267736b10 DE-627 ger DE-627 rakwb eng TK7800-8360 Waldemar Jendernalik verfasserin aut Low-Voltage Low-Power Filters with Independent <i<ω</i<<sub<0</sub< and <i<Q</i< Tuning for Electronic Cochlea Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub<0</sub<) and the <i<Q</i<-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low <i<Q</i<-factor sensitivity to component mismatch. These filter features greatly simplify the implementation of the electronic cochlea in CMOS technologies. An exemplary filter bank designed and simulated in an X-FAB 180 nm CMOS process is presented, which consumes 1.25–34.75 nW of power per individual filter when supplied with 0.5 V. The 11-channel filter bank covers a 20–20 kHz band, while the <i<Q</i<-factor of each channel can be tuned from 2 to 40. The simulation-predicted sensitivities of <i<Q</i< and <i<ω</i<<sub<0</sub< to process/voltage/temperature (PVT) variations are less than 1%. The input-referred noise is no greater than 22 µV<sub<RMS</sub<, and the dynamic range is at least 68 dB for all filters in the bank. analog filters low-frequency filters audio filters low-power circuits analog integrated circuits CMOS analog circuits Electronics Jacek Jakusz verfasserin aut Grzegorz Blakiewicz verfasserin aut In Electronics MDPI AG, 2013 11(2022), 4, p 534 (DE-627)718626478 (DE-600)2662127-7 20799292 nnns volume:11 year:2022 number:4, p 534 https://doi.org/10.3390/electronics11040534 kostenfrei https://doaj.org/article/225bb7b3861f449cad9c833267736b10 kostenfrei https://www.mdpi.com/2079-9292/11/4/534 kostenfrei https://doaj.org/toc/2079-9292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2022 4, p 534 |
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10.3390/electronics11040534 doi (DE-627)DOAJ031661629 (DE-599)DOAJ225bb7b3861f449cad9c833267736b10 DE-627 ger DE-627 rakwb eng TK7800-8360 Waldemar Jendernalik verfasserin aut Low-Voltage Low-Power Filters with Independent <i<ω</i<<sub<0</sub< and <i<Q</i< Tuning for Electronic Cochlea Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub<0</sub<) and the <i<Q</i<-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low <i<Q</i<-factor sensitivity to component mismatch. These filter features greatly simplify the implementation of the electronic cochlea in CMOS technologies. An exemplary filter bank designed and simulated in an X-FAB 180 nm CMOS process is presented, which consumes 1.25–34.75 nW of power per individual filter when supplied with 0.5 V. The 11-channel filter bank covers a 20–20 kHz band, while the <i<Q</i<-factor of each channel can be tuned from 2 to 40. The simulation-predicted sensitivities of <i<Q</i< and <i<ω</i<<sub<0</sub< to process/voltage/temperature (PVT) variations are less than 1%. The input-referred noise is no greater than 22 µV<sub<RMS</sub<, and the dynamic range is at least 68 dB for all filters in the bank. analog filters low-frequency filters audio filters low-power circuits analog integrated circuits CMOS analog circuits Electronics Jacek Jakusz verfasserin aut Grzegorz Blakiewicz verfasserin aut In Electronics MDPI AG, 2013 11(2022), 4, p 534 (DE-627)718626478 (DE-600)2662127-7 20799292 nnns volume:11 year:2022 number:4, p 534 https://doi.org/10.3390/electronics11040534 kostenfrei https://doaj.org/article/225bb7b3861f449cad9c833267736b10 kostenfrei https://www.mdpi.com/2079-9292/11/4/534 kostenfrei https://doaj.org/toc/2079-9292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2022 4, p 534 |
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10.3390/electronics11040534 doi (DE-627)DOAJ031661629 (DE-599)DOAJ225bb7b3861f449cad9c833267736b10 DE-627 ger DE-627 rakwb eng TK7800-8360 Waldemar Jendernalik verfasserin aut Low-Voltage Low-Power Filters with Independent <i<ω</i<<sub<0</sub< and <i<Q</i< Tuning for Electronic Cochlea Applications 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub<0</sub<) and the <i<Q</i<-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low <i<Q</i<-factor sensitivity to component mismatch. These filter features greatly simplify the implementation of the electronic cochlea in CMOS technologies. An exemplary filter bank designed and simulated in an X-FAB 180 nm CMOS process is presented, which consumes 1.25–34.75 nW of power per individual filter when supplied with 0.5 V. The 11-channel filter bank covers a 20–20 kHz band, while the <i<Q</i<-factor of each channel can be tuned from 2 to 40. The simulation-predicted sensitivities of <i<Q</i< and <i<ω</i<<sub<0</sub< to process/voltage/temperature (PVT) variations are less than 1%. The input-referred noise is no greater than 22 µV<sub<RMS</sub<, and the dynamic range is at least 68 dB for all filters in the bank. analog filters low-frequency filters audio filters low-power circuits analog integrated circuits CMOS analog circuits Electronics Jacek Jakusz verfasserin aut Grzegorz Blakiewicz verfasserin aut In Electronics MDPI AG, 2013 11(2022), 4, p 534 (DE-627)718626478 (DE-600)2662127-7 20799292 nnns volume:11 year:2022 number:4, p 534 https://doi.org/10.3390/electronics11040534 kostenfrei https://doaj.org/article/225bb7b3861f449cad9c833267736b10 kostenfrei https://www.mdpi.com/2079-9292/11/4/534 kostenfrei https://doaj.org/toc/2079-9292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2022 4, p 534 |
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Low-Voltage Low-Power Filters with Independent <i<ω</i<<sub<0</sub< and <i<Q</i< Tuning for Electronic Cochlea Applications |
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An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub<0</sub<) and the <i<Q</i<-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low <i<Q</i<-factor sensitivity to component mismatch. These filter features greatly simplify the implementation of the electronic cochlea in CMOS technologies. An exemplary filter bank designed and simulated in an X-FAB 180 nm CMOS process is presented, which consumes 1.25–34.75 nW of power per individual filter when supplied with 0.5 V. The 11-channel filter bank covers a 20–20 kHz band, while the <i<Q</i<-factor of each channel can be tuned from 2 to 40. The simulation-predicted sensitivities of <i<Q</i< and <i<ω</i<<sub<0</sub< to process/voltage/temperature (PVT) variations are less than 1%. The input-referred noise is no greater than 22 µV<sub<RMS</sub<, and the dynamic range is at least 68 dB for all filters in the bank. |
abstractGer |
An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub<0</sub<) and the <i<Q</i<-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low <i<Q</i<-factor sensitivity to component mismatch. These filter features greatly simplify the implementation of the electronic cochlea in CMOS technologies. An exemplary filter bank designed and simulated in an X-FAB 180 nm CMOS process is presented, which consumes 1.25–34.75 nW of power per individual filter when supplied with 0.5 V. The 11-channel filter bank covers a 20–20 kHz band, while the <i<Q</i<-factor of each channel can be tuned from 2 to 40. The simulation-predicted sensitivities of <i<Q</i< and <i<ω</i<<sub<0</sub< to process/voltage/temperature (PVT) variations are less than 1%. The input-referred noise is no greater than 22 µV<sub<RMS</sub<, and the dynamic range is at least 68 dB for all filters in the bank. |
abstract_unstemmed |
An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (<i<Q</i<)-factor tuning technique, an independent change of the cutoff frequency (<i<ω</i<<sub<0</sub<) and the <i<Q</i<-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low <i<Q</i<-factor sensitivity to component mismatch. These filter features greatly simplify the implementation of the electronic cochlea in CMOS technologies. An exemplary filter bank designed and simulated in an X-FAB 180 nm CMOS process is presented, which consumes 1.25–34.75 nW of power per individual filter when supplied with 0.5 V. The 11-channel filter bank covers a 20–20 kHz band, while the <i<Q</i<-factor of each channel can be tuned from 2 to 40. The simulation-predicted sensitivities of <i<Q</i< and <i<ω</i<<sub<0</sub< to process/voltage/temperature (PVT) variations are less than 1%. The input-referred noise is no greater than 22 µV<sub<RMS</sub<, and the dynamic range is at least 68 dB for all filters in the bank. |
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Low-Voltage Low-Power Filters with Independent <i<ω</i<<sub<0</sub< and <i<Q</i< Tuning for Electronic Cochlea Applications |
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