A low-power single-phase clock multiband flexible divider

In this paper, a low-power single-phase clock multiband flexible divider for Bluetooth, Zigbee, and IEEE 802.15.4 and 802.11 a/b/g WLAN frequency synthesizers is proposed based on pulse-swallow topology and is implemented using a 0.18-μm CMOS technology. The multiband divider consists of a proposed...

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Bibliographic Details
Main Authors: Manthena, Vamshi Krishna, Do, Manh Anh, Boon, Chirn Chye, Yeo, Kiat Seng
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/101669
http://hdl.handle.net/10220/16540
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Institution: Nanyang Technological University
Language: English
Description
Summary:In this paper, a low-power single-phase clock multiband flexible divider for Bluetooth, Zigbee, and IEEE 802.15.4 and 802.11 a/b/g WLAN frequency synthesizers is proposed based on pulse-swallow topology and is implemented using a 0.18-μm CMOS technology. The multiband divider consists of a proposed wideband multimodulus 32/33/47/48 prescaler and an improved bit-cell for swallow (S) counter and can divide the frequencies in the three bands of 2.4-2.484 GHz, 5.15-5.35 GHz, and 5.725-5.825 GHz with a resolution selectable from 1 to 25 MHz. The proposed multiband flexible divider is silicon verified and consumes power of 0.96 and 2.2 mW in 2.4- and 5-GHz bands, respectively, when operated at 1.8-V power supply.