CMOS Design of Group Delay Equaliser
CMOS Design of Group Delay Equaliser
Two new current-mode allpass sections based on dual-output OTAs and triple-output OTAs and grounded capacitors are described. Techniques to minimise the equaliser active device count and efficiently simulate grounded resistors are proposed. A 5th-order group delay equaliser based on the presented allpass sections is designed and simulated using multiple-output CMOS OTAs. Numerical optimisation is used to determine the equaliser order and parameters. SPICE simulation results are given demonstrating that the equaliser can effectively compensate the delay characteristic of 4th-order 4MHz lowpass Chebyshev filter to <8ns ripple over 90% of the filter passband.
163-169
Al-Hashimi, B.M.
0b29c671-a6d2-459c-af68-c4614dce3b5d
Dudek, F.
7bc8ba9b-e5c9-413e-ab8a-39f5154276b3
Sun, Y.
f9a339ca-9e03-4220-8df6-0c7ecf47c06c
August 2000
Al-Hashimi, B.M.
0b29c671-a6d2-459c-af68-c4614dce3b5d
Dudek, F.
7bc8ba9b-e5c9-413e-ab8a-39f5154276b3
Sun, Y.
f9a339ca-9e03-4220-8df6-0c7ecf47c06c
Al-Hashimi, B.M., Dudek, F. and Sun, Y.
(2000)
CMOS Design of Group Delay Equaliser.
.
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Conference or Workshop Item
(Other)
Abstract
Two new current-mode allpass sections based on dual-output OTAs and triple-output OTAs and grounded capacitors are described. Techniques to minimise the equaliser active device count and efficiently simulate grounded resistors are proposed. A 5th-order group delay equaliser based on the presented allpass sections is designed and simulated using multiple-output CMOS OTAs. Numerical optimisation is used to determine the equaliser order and parameters. SPICE simulation results are given demonstrating that the equaliser can effectively compensate the delay characteristic of 4th-order 4MHz lowpass Chebyshev filter to <8ns ripple over 90% of the filter passband.
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Published date: August 2000
Additional Information:
Address: USA
Organisations:
Electronic & Software Systems
Identifiers
Local EPrints ID: 251551
URI: http://eprints.soton.ac.uk/id/eprint/251551
PURE UUID: b0b6b259-70b2-4c78-82fb-6c1e7ab1c071
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Date deposited: 21 Jun 2000
Last modified: 08 Jan 2022 08:45
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Contributors
Author:
B.M. Al-Hashimi
Author:
F. Dudek
Author:
Y. Sun
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