A CMOS RF Programmable Gain Amplifier Using Current Mirror Method for Digital TV Tuner Applications

Hyouk-Kyu CHA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E93-C   No.5   pp.706-708
Publication Date: 2010/05/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E93.C.706
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Microwaves, Millimeter-Waves
Keyword: 
RF programmable gain amplifier,  current mirror amplifier,  digital TV,  

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Summary: 
In this letter, a highly linear 1.22 GHz current mirror based differential RF programmable gain amplifier (RFPGA) for digital TV tuner applications is proposed and implemented using 0.18-µm CMOS process. The fabricated RFPGA shows a maximum power gain of 9 dB, an OIP3 of 23.5 dBm, and an accurate dB-linear discrete gain step control while consuming 36 mA from a 1.8-V supply voltage.