dc.citation.conferencePlace |
CH |
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dc.citation.conferencePlace |
85 Sky Tower HotelKaohsiung |
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dc.citation.endPage |
160 |
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dc.citation.startPage |
157 |
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dc.citation.title |
IEEE Asian Solid-State Circuits Conference |
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dc.contributor.author |
Heo, Sanghyun |
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dc.contributor.author |
Ma, Hyunggun |
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dc.contributor.author |
Kim, Jae Joon |
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dc.contributor.author |
Bien, Franklin |
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dc.date.accessioned |
2023-12-19T23:08:12Z |
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dc.date.available |
2023-12-19T23:08:12Z |
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dc.date.created |
2015-03-17 |
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dc.date.issued |
2014-11-10 |
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dc.description.abstract |
In this paper, a continuous-time differential type multi-signal parallel driving architecture touch screen sensing circuit for projective capacitive type panel is presented. In order to further enhance the Signal-to-Noise Ratio (SNR), a new transmitter (TX) architecture is proposed with parallel signal processing algorithm. In this work, charge amplifiers with built-in band-pass filter are designed that filter out low frequency noise and common-mode noise simultaneously. Conventional approaches in continuous-time operation with band-pass filter suffer from a synchronization problem in the case of multi-signal parallel driving. In this work, a built-in delay calibration circuit is proposed that can align signal timing for TX signal and adjacent receiver (RX) sensing line. This proposed architecture enables multi-signal parallel driving in continuous-time operation for projective capacitive sensing circuits. The proposed work supports 16 × 8 mutual capacitive touch screen panel (TSP). TSP load is 12.5 kΩ and 40 pF with frame rate of 200 Hz and 58 dB SNR. Power dissipation is 46 mW. |
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dc.identifier.bibliographicCitation |
IEEE Asian Solid-State Circuits Conference, pp.157 - 160 |
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dc.identifier.doi |
10.1109/ASSCC.2014.7008884 |
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dc.identifier.scopusid |
2-s2.0-84922496209 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/46685 |
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dc.identifier.url |
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7008884 |
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dc.language |
영어 |
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dc.publisher |
IEEE |
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dc.title |
Highly improved SNR differential sensing method using parallel operation signaling for touch screen application |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2014-11-10 |
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