Title :
A Highly Linear Broadband Variable Gain LNA for TV Applications
Author :
Manstretta, D. ; Dauphinee, L.
Abstract :
A broadband variable-gain low noise amplifier with triple output for TV tuners has been demonstrated in a 0.18 mum SiGe technology. The gain varies continuously from 27 dB to -28 dB and has better than 1 dB precision over a 1GHz bandwidth. At 27 dB gain the amplifier shows 6.5 dB NF, 82 dBmV OIP3 and 121 dBmV OIP2. OIP3 is above 73 dBmV down to -21 dB gain. With all three outputs enabled the circuit draws 170 mA from a 3.3V supply.
Keywords :
Ge-Si alloys; low noise amplifiers; television; tuning; wideband amplifiers; SiGe; TV tuners; bandwidth 1 GHz; broadband amplifier; current 170 mA; gain 27 dB; low noise amplifier; noise figure 6.5 dB; size 0.18 mum; variable gain amplifier; voltage 3.3 V; Bandwidth; Broadband amplifiers; Circuits; Gain; Germanium silicon alloys; Low-noise amplifiers; Noise measurement; Silicon germanium; TV; Tuners;
Conference_Titel :
Custom Integrated Circuits Conference, 2007. CICC '07. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-1623-3
Electronic_ISBN :
978-1-4244-1623-3
DOI :
10.1109/CICC.2007.4405787
