公开(公告)号：ITVA980013A1

公开(公告)日：1999-12-23

申请号：ITVA980013

申请日：1998-06-23

Applicant: ST MICROELECTRONICS SRL

Inventor： PALMISANO GIUSEPPE ,  PANNISI SALVATORE

IPC: H03G1/00

Abstract: By selecting a particular configuration of an input stage of a low noise RF amplifier, an optimal combination of linearity and input matching is achieved upon selecting a certain gain factor from a set of fixed step values. Each input stage configuration defines an input matching network specifically suitable to operate at a certain RF frequency. An RF signal input inductor is selectively associated to an input coupling capacitor, and a second degeneration inductor of a gain transistor of the input stage having a different gain value. The selection of a certain configuration is made through at least one switch through which a bias current generator is switched to the programmably selected input stage.

公开(公告)号：ITVA980013D0

公开(公告)日：1998-06-23

申请号：ITVA980013

申请日：1998-06-23

Applicant: ST MICROELECTRONICS SRL

Inventor： PALMISANO GIUSEPPE ,  PANNISI SALVATORE

IPC: H03G1/00

Abstract: By selecting a particular configuration of an input stage of a low noise RF amplifier, an optimal combination of linearity and input matching is achieved upon selecting a certain gain factor from a set of fixed step values. Each input stage configuration defines an input matching network specifically suitable to operate at a certain RF frequency. An RF signal input inductor is selectively associated to an input coupling capacitor, and a second degeneration inductor of a gain transistor of the input stage having a different gain value. The selection of a certain configuration is made through at least one switch through which a bias current generator is switched to the programmably selected input stage.

公开(公告)号：IT1305642B1

公开(公告)日：2001-05-15

申请号：ITVA980013

申请日：1998-06-23

Applicant: ST MICROELECTRONICS SRL

Inventor： PALMISANO GIUSEPPE ,  PANNISI SALVATORE

IPC: H03G1/00

Abstract: By selecting a particular configuration of an input stage of a low noise RF amplifier, an optimal combination of linearity and input matching is achieved upon selecting a certain gain factor from a set of fixed step values. Each input stage configuration defines an input matching network specifically suitable to operate at a certain RF frequency. An RF signal input inductor is selectively associated to an input coupling capacitor, and a second degeneration inductor of a gain transistor of the input stage having a different gain value. The selection of a certain configuration is made through at least one switch through which a bias current generator is switched to the programmably selected input stage.