Title :
Modeling and Experimental Verification to Investigate the Effect of Power Supply Noise Imbalance on 900MHz Differential LNA
Author :
Koo, Kyoungchoul ; Shim, Jongjoo ; Shim, Yujeong ; Kim, Joungho
Author_Institution :
Terahertz Interconnection & Package Lab., KAIST, Daejeon
Abstract :
In this paper, the effect of power supply noise imbalance on 900 MHz differential low noise amplifier (LNA) output is investigated. Chip and package (PKG) power distribution network (PDN) are modeled with lumped components to estimate the power supply noise imbalance. Also an equivalent circuit of differential LNA is modeled to estimate the noise voltage at differential LNA output and verified through measurements. The results of this study reveal that the power supply noise imbalance is mainly caused by impedance resonances of PKG PDN and it directly coupled to the differential LNA output.
Keywords :
UHF amplifiers; distribution networks; equivalent circuits; low noise amplifiers; UHF amplifier; differential LNA; differential low noise amplifier; equivalent circuit; frequency 900 MHz; impedance resonances; lumped components; package power distribution network; power supply noise imbalance; Circuit noise; Differential amplifiers; Equivalent circuits; Low-noise amplifiers; Noise measurement; Packaging; Power supplies; Power systems; Semiconductor device measurement; Voltage;
Conference_Titel :
Signal Propagation on Interconnects, 2008. SPI 2008. 12th IEEE Workshop on
Conference_Location :
Avignon
Print_ISBN :
978-1-4244-2317-0
Electronic_ISBN :
978-1-4244-2318-7
DOI :
10.1109/SPI.2008.4558341
