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2.4 GHz divide-by-256∼271 single-ended frequency divider in standard 0.35-μm CMOS technology

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5 Author(s)
Sheng-Che Tseng ; Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Chinchun Meng ; Shao-Yu Li ; Jen-Yi Su
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This paper demonstrates a low-cost 2.4 GHz single-ended frequency divider with the divide-by-value from 256 to 271 in standard 0.35-μm 2P4M CMOS technology. This frequency divider is composed of a synchronous CML divide-by-4/5 prescaler, an asynchronous TSPC TFF divide-by-64 divider and digital control circuitry. This proposed divider is single-ended and compatible to the single-ended low-phase-noise Colpitts VCO. The operating frequency range of the divider is from 400 MHz to 2.9 GHz. Most of input sensitivity levels are about -10 dBm and the lowest level is -25 dBm at 2.4 GHz. Its core power consumption is about 28 mW. The chip size is 1.2×0.7 mm2.

Published in:

Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings  (Volume:2 )

Date of Conference:

4-7 Dec. 2005