公开(公告)号：AT323969T

公开(公告)日：2006-05-15

申请号：AT99401290

申请日：1999-05-31

Applicant: ST MICROELECTRONICS NV

Inventor： HERNANDEZ GAMAZO JOSE MIGUEL ,  MOTOS LOPEZ TOMAS ,  MARTINEZ FERNANDEZ CARLOS ,  CORTIJO FERNANDEZ VICTOR MANUE ,  GARCIA GIL PABLO ANTONIO

IPC: H03L7/08 ,  H03L7/18 ,  H03L7/183

Abstract: The present invention relates to a frequency synthesiser for generating an output signal (So) the frequency of which has a non-integer, fractional relationship of value Nn/Nd, where Nn and Nd are integer numbers, with respect to a frequency (fr) of an input signal (Sr). The synthesiser is characterised in that it comprises means (20) for multiplying by M, where M is an integer number, the frequency of said input signal in order to produce a high frequency intermediate signal (Si), and means (21) for dividing the frequency of this intermediate signal by (MxNd)/Nn in order to generate said output signal (So).

公开(公告)号：DE69930892D1

公开(公告)日：2006-05-24

申请号：DE69930892

申请日：1999-05-31

Applicant: ST MICROELECTRONICS NV

Inventor： HERNANDEZ GAMAZO JOSE MIGUEL ,  MOTOS LOPEZ TOMAS ,  MARTINEZ FERNANDEZ CARLOS ,  CORTIJO FERNANDEZ VICTOR MANUE ,  GARCIA GIL PABLO ANTONIO

IPC: H03L7/08 ,  H03L7/18 ,  H03L7/183

Abstract: The present invention relates to a frequency synthesiser for generating an output signal (So) the frequency of which has a non-integer, fractional relationship of value Nn/Nd, where Nn and Nd are integer numbers, with respect to a frequency (fr) of an input signal (Sr). The synthesiser is characterised in that it comprises means (20) for multiplying by M, where M is an integer number, the frequency of said input signal in order to produce a high frequency intermediate signal (Si), and means (21) for dividing the frequency of this intermediate signal by (MxNd)/Nn in order to generate said output signal (So).