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1. WO2006095296 - RECEIVER HAVING A GAIN-CONTROLLABLE INPUT AMPLIFIER.

Publication Number WO/2006/095296
Publication Date 14.09.2006
International Application No. PCT/IB2006/050674
International Filing Date 03.03.2006
IPC
H03G 3/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
3Gain control in amplifiers or frequency changers
H03F 3/45 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
45Differential amplifiers
CPC
H03F 2203/45392
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2203Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
45Indexing scheme relating to differential amplifiers
45392the AAC comprising resistors in the source circuit of the AAC before the common source coupling
H03F 3/45
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
45Differential amplifiers
H03F 3/45085
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
45Differential amplifiers
45071with semiconductor devices only
45076characterised by the way of implementation of the active amplifying circuit in the differential amplifier
4508using bipolar transistors as the active amplifying circuit
45085Long tailed pairs
H03G 1/0076
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
1Details of arrangements for controlling amplification
0005Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
0035using continuously variable impedance elements
0076using galvanomagnetic elements
H03G 3/3052
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
3Gain control in amplifiers or frequency changers ; without distortion of the input signal
20Automatic control
30in amplifiers having semiconductor devices
3052in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
Applicants
  • NXP B.V. [NL]/[NL] (AllExceptUS)
  • MERCIER, Frédéric [FR]/[FR] (UsOnly)
Inventors
  • MERCIER, Frédéric
Agents
  • WHITE, Andrew
Priority Data
05300176.410.03.2005EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RECEIVER HAVING A GAIN-CONTROLLABLE INPUT AMPLIFIER.
(FR) RECEPTEUR COMPORTANT UN AMPLIFICATEUR D'ENTREE A GAIN CONTROLABLE
Abstract
(EN)
A receiver has an input amplifier (RFAMP) that comprises a signal-voltage amplifier (SVA) and a feedback path (FBP). The signal-voltage amplifier (SVA) provides a voltage gain (VG) from an input node (SESf) to an output node (SON). The voltage gain (VG) is controllable. The feedback path (FBP) provides a transadmittance (GM) from the output node (SON) to the input node (SIN). The transadmittance (GM) is controllable.
(FR)
La présente invention a trait à un récepteur comportant un amplificateur d'entrée (RFAMP) comprenant un amplificateur de tension de signal (SVA) et un trajet de rétroaction (FBP). L'amplificateur de tension de signal (SVA) fournit un gain de tension (VG) depuis un noeud d'entrée (SESf) vers un noeud de sortie (SON). Le gain de tension (VG) est contrôlable. Le trajet de rétroaction (FBP) fournit une transadmittance (GM) depuis le noeud de sortie (SON) vers le noeud d'entrée (SIN). La transadmittance (GM) est contrôlable.
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