Title:
RADIO FREQUENCY LOW NOISE AMPLIFIER WITH AUTOMATIC GAIN CONTROL
Document Type and Number:
WIPO Patent Application WO2005078921
Kind Code:
A3
Abstract:
A low noise amplifier (500) includes a first transconductance device (326) having a control electrode for receiving a first input signal, and a first current electrode; a first load device (322) having a first terminal coupled to a first power supply voltage terminal and a second terminal coupled to the first current electrode of the first transconductance device (326) and forming a first output voltage signal; a second transconductance device (336) having a control electrode for receiving a second input signal, and a second current electrode; a second load device (332) having a first terminal coupled to the first power supply voltage terminal and a second terminal coupled to the first current electrode of the second transconductance device (336) and forming a second output voltage signal; and an attenuation device (340) coupled between the first current electrodes of the first (326) and second (336) transconductance devices and having a control input terminal for receiving a control voltage thereon.
Inventors:
KRONE ANDREW W (US)
Application Number:
PCT/US2005/002665
Publication Date:
April 27, 2006
Filing Date:
February 02, 2005
Export Citation:
Assignee:
SILICON LAB INC (US)
KRONE ANDREW W (US)
KRONE ANDREW W (US)
International Classes:
H03D7/14; H03F1/26; H03F3/193; H03F3/45; H03G1/00; H03G7/00; (IPC1-7): H03G1/00; H03D7/14
Foreign References:
| EP1134890A1 | 2001-09-19 | |||
| US3984783A | 1976-10-05 | |||
| US20030155972A1 | 2003-08-21 | |||
| EP0711031A1 | 1996-05-08 |
Download PDF:
Previous Patent: PIEZO-OSCILLATOR AND MANUFACTURING METHOD THEREOF
Next Patent: DC COMPONENT REMOVAL FILTER, METHOD, AND PROGRAM
Next Patent: DC COMPONENT REMOVAL FILTER, METHOD, AND PROGRAM