The University of Southampton
University of Southampton Institutional Repository

Broad-band odd-number CMOS prescalers with quadrature/symmetrical outputs

Broad-band odd-number CMOS prescalers with quadrature/symmetrical outputs
Broad-band odd-number CMOS prescalers with quadrature/symmetrical outputs
In this brief we present two architectures for digital division by odd numbers suitable for implementation in high-speed prescalers. First, we show a technique that delivers accurate in-phase and quadrature outputs over a wide frequency range from an inherently symmetrical circuit structure, which is particularly suited to the realization of image-rejection transceiver architectures with offset local oscillator frequency. The second technique focuses on generating precise 50$%$ duty cycle outputs, which are intended for direct mixer drive to achieve low output dc offset and second-order input intercept point. Both concepts can be realized in a wide range of logic forms. Demonstrator circuits implemented in high-speed current-mode logic have been fabricated in 0.18-$muhbox{m}$ digital CMOS technology, and both techniques show robust odd-number division. The test chips consume approximately 7 mA each from a 1.8-V supply.
counting circuits, local oscillator (lo), radio-frequency (rf) integrated circuits
1549-7747
399-403
Dekate, P.
f4c4494c-f8b9-4a98-8717-62e42468cb43
Redman-White, W.
d5376167-c925-460f-8e9c-13bffda8e0bf
Leenaerts, D.M.W.
2847f917-2c2e-4fb1-937c-81437489644d
Long, J.R.
e8318821-f5e4-4ab0-b71b-ea056cd07d20
Dekate, P.
f4c4494c-f8b9-4a98-8717-62e42468cb43
Redman-White, W.
d5376167-c925-460f-8e9c-13bffda8e0bf
Leenaerts, D.M.W.
2847f917-2c2e-4fb1-937c-81437489644d
Long, J.R.
e8318821-f5e4-4ab0-b71b-ea056cd07d20

Dekate, P., Redman-White, W., Leenaerts, D.M.W. and Long, J.R. (2012) Broad-band odd-number CMOS prescalers with quadrature/symmetrical outputs. IEEE Transactions on Circuits and Systems II: Express Briefs, 59 (7), 399-403. (doi:10.1109/TCSII.2012.2198986).

Record type: Article

Abstract

In this brief we present two architectures for digital division by odd numbers suitable for implementation in high-speed prescalers. First, we show a technique that delivers accurate in-phase and quadrature outputs over a wide frequency range from an inherently symmetrical circuit structure, which is particularly suited to the realization of image-rejection transceiver architectures with offset local oscillator frequency. The second technique focuses on generating precise 50$%$ duty cycle outputs, which are intended for direct mixer drive to achieve low output dc offset and second-order input intercept point. Both concepts can be realized in a wide range of logic forms. Demonstrator circuits implemented in high-speed current-mode logic have been fabricated in 0.18-$muhbox{m}$ digital CMOS technology, and both techniques show robust odd-number division. The test chips consume approximately 7 mA each from a 1.8-V supply.

Full text not available from this repository.

More information

Published date: 22 July 2012
Keywords: counting circuits, local oscillator (lo), radio-frequency (rf) integrated circuits
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 341426
URI: https://eprints.soton.ac.uk/id/eprint/341426
ISSN: 1549-7747
PURE UUID: 8878c2f9-01e7-48bd-84ee-2748982fe2ff

Catalogue record

Date deposited: 23 Jul 2012 12:00
Last modified: 16 Jul 2019 21:57

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×