Title :
Noise optimization of a broadband LNA for tuner applications
Author :
Gul, H. ; Simin, Alexander
Author_Institution :
NXP Semicond. B.V., Nijmegen, Netherlands
Abstract :
Based on shunt - series feedback topology, a 10dB broadband low noise amplifier is developed for tuner front end applications. With such gain, low noise operation with high linearity is a challenging specification. In this paper, it is shown that there is a direct relation between gain and minimum noise figure under input/output simultaneous matching condition. The measurement of a packaged device with 3.3V supply gives a noise figure NF of 3.5dB, a gain of 10dB and an OIP3 of 30dBm with a supply current of 38mA.
Keywords :
feedback amplifiers; low noise amplifiers; network topology; tuning; wideband amplifiers; OIP3; broadband LNA; broadband low noise amplifier; current 38 mA; current supply; input-output simultaneous matching condition; low noise operation; noise figure; noise optimization; packaged device measurement; shunt-series feedback topology; tuner applications; tuner front end applications; voltage 3.3 V; Noise measurement; Radio frequency; RF circuits; Silicon bipolar/BiCMOS process technology; analog circuits; broadband LNA; low noise amplifier (LNA); noise optimization; tuner;
Conference_Titel :
IC Design & Technology (ICICDT), 2013 International Conference on
Conference_Location :
Pavia
Print_ISBN :
978-1-4673-4740-2
Electronic_ISBN :
978-1-4673-4741-9
DOI :
10.1109/ICICDT.2013.6563331
