A single-chip 20-channel speech spectrum analyaer using a multiplexed switched-capacitor filter bank
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概要
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A single-chip speech spectrum analyzer which contains a 20-channel filter bank, a 9 bit resolution analog-to-digital converter, and a 396 bit buffer memory is described. Several efficient design techniques were used to realize the equivalent 308th-order transfer functions on a single chip monolithic MOS circuit. A new time division multiplexed switched-capacitor filter technique is introduced which can easily cancel dc offsets which appear in the multiplexed channel outputs. The LSI was fabricated in 3. 5 mu m CMOS technology, with a 7. 0 multiplied by 6. 5 mm**2 die size and a 150 mw power consumption with a plus 5 v single power supply. Experimental results show that designed performance was realized.
- Institute of Electrical and Electronics Engineers (IEEE)の論文
- 1984-12-00
Institute of Electrical and Electronics Engineers (IEEE) | 論文
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