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A highly integrated dual-band triple-mode transmit IC for cellular CDMA2000 applications

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10 Author(s)
Aggarwal, S. ; Philips Semicond., San Jose, CA, USA ; Daanen, A. ; Locher, M. ; Landesman, A.L.
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A highly integrated transmit integrated circuit intended for dual-band (CELL/PCS) and triple-mode (CDMA/TDMA/AMPS) cellular mobile stations is presented. It features a linear-in-dB gain-control range of 90 dB and provides a high output power of 9 dBm (PCS band) while meeting linearity requirements (-53-dBc ACPR) and achieving the receive-band noise floor of -133 dBm/Hz. It consumes only 130-mA current (3-V supply) in the PCS band. A dynamic-biasing feature results in additional power savings at lower signal levels. The circuit is fabricated in a 30-GHz fT BiCMOS technology.

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:38 ,  Issue: 9 )

Date of Publication:

Sept. 2003

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