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A CMOS RF Programmable Gain Amplifier Using Current Mirror Method for Digital TV Tuner Applications
IEICE TRANSACTIONS on Electronics
Publication Date: 2010/05/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Microwaves, Millimeter-Waves
RF programmable gain amplifier, current mirror amplifier, digital TV,
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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.