An on-chip automatic tuning circuit is proposed. The circuit is applied to a 3.3V 1.1MHz butterworth low-pass Gm-C filter for ADSL (Asymmetric Digital Subscriber Loops). A new frequency tuning method is used to adjust the cut-off frequency of the filter. The frequency tuning circuit can reduce the tolerance due to process variations and without a large off-chip capacitor. HSPICE simulations and experimental results verify the proposed circuits. All the circuits are designed based on the TSMC 0.35um 2p4m CMOS process technology.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0803106-160857 |
| Date | 03 August 2006 |
| Creators | Tsai, Yu-Huang |
| Contributors | Chia-Hsiung Kao, none, none |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803106-160857 |
| Rights | not_available, Copyright information available at source archive |
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