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1. WO2007145653 - SEMICONDUCTOR DEVICE AND SYSTEM AND METHOD OF CRYSTAL SHARING

Publication Number WO/2007/145653
Publication Date 21.12.2007
International Application No. PCT/US2006/040629
International Filing Date 18.10.2006
IPC
H03K 19/00 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
19Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
CPC
H02M 1/084
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
084using a control circuit common to several phases of a multi-phase system
Applicants
  • SIGMATEL, INC. [US]/[US] (AllExceptUS)
Inventors
  • MAY, Michael, R.
  • MAY, Marcus, William
Agents
  • TOLER, Jeffrey, G.
Priority Data
11/446,61205.06.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SEMICONDUCTOR DEVICE AND SYSTEM AND METHOD OF CRYSTAL SHARING
(FR) DISPOSITIF SEMI-CONDUCTEUR ET SYSTÈME ET PROCÉDÉ DE PARTAGE DE CRISTAL
Abstract
(EN)
A system includes a first semiconductor device, a second semiconductor device, and an external crystal oscillator. The first semiconductor device includes a source voltage output and an external pin input. The first semiconductor device includes a direct current-to-direct current (DC-DC) converter circuit that provides the source voltage output. The second semiconductor device includes a source voltage input that is coupled to the source voltage output of the first semiconductor device and includes a clock signal output. The external crystal oscillator is coupled via an input of the second semiconductor device to a first oscillator clock generation circuit.
(FR)
Le système selon l'invention comprend un premier dispositif semi-conducteur, un second dispositif semi-conducteur, et un oscillateur cristallin externe. Le premier dispositif semi-conducteur comprend une sortie de tension de source et une entrée de broche externe. Le premier dispositif semi-conducteur comprend un circuit de convertisseur de courant continu en courant continu (CC-CC) qui donne la sortie de tension de source. Le second dispositif semi-conducteur comprend une entrée de tension de source qui est couplée à la sortie de tension de source du premier dispositif semi-conducteur et comprend une sortie de signal d'horloge. L'oscillateur cristallin externe est couplé via une entrée du second dispositif semi-conducteur à un premier circuit générateur d'horloge d'oscillateur.
Also published as
Latest bibliographic data on file with the International Bureau