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A new GaAs variable-gain amplifier MMIC with a wide-dynamic-range and low-voltage-operation linear attenuation circuit

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5 Author(s)
Inamori, M. ; Discrete Device Div., Matsushita Electron. Corp., Kyoto, Japan ; Motoyoshi, K. ; Kitazawa, T. ; Tara, K.
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A 40-dB dynamic-range variable-gain amplifier (VGA) designed for the code division multiple access (CDMA) cellular phone has been developed. A wide-dynamic-range VGA under a low control voltage of 2.0 V, compatible with high linearity and low distortion characteristics, essential for CDMA, is realized by the new gain control technique. It greatly contributes to the high performance and small size of RF circuits for CDMA cellular handsets

Published in:
Microwave Theory and Techniques, IEEE Transactions on  (Volume:48 ,  Issue: 2 )

Date of Publication: Feb 2000

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