摘要:
Device converts an analogue signal representing charges resulting from the photo-detection of electromagnetic radiation into a digital signal. Device includes (a) a number of photo-detectors connected in rows and columns through of buses, the photo-detectors in one column sharing the same column bus, itself connected to an output stage by through a row bus, and between each photo-detector and the column bus, (b) an integrator, to integrate the charges arriving from the photo-detector, (c) means for resetting the integrator, and (d) a comparator to compare the voltage Vp from the integrator with an internally predefined threshold voltage Vs, characterized in that it also includes a processing device, a clock, the clock controlling the processing device and the processing device receiving a binary value present at the output of the comparator at each signal from the clock.
摘要:
The invention relates to a method for controlling an analogue switch comprising a transistor, to which an input voltage Vin is applied, wherein: during a first phase, a first voltage, function of Vin and of a first potential V1, and that can make the transistor conduct, is applied to the transistor gate during a second phase, a second voltage, function of Vin and of a second potential V2, and that can block the transistor, is applied to the transistor gate, the difference between first voltage and second voltage being independent of Vin.
摘要:
Integrated circuit comprising: at least one first and one second power supply terminal (418, 420), at least one active area (302, 304, 306, 308) formed in a thin layer (206) of a substrate and electrically connected to at least one of the power supply terminals. According to the invention, the circuit also comprises capacitive decoupling means formed by at least one dielectric capacitor (110, 112, 114) connected between the said, first and second power supply terminals and formed in a region of the substrate that is electrically insulated from the thin substrate layer (206). Applications include the manufacture of portable electronic equipment.
摘要:
A digital electronic circuit includes: a plurality of sequential elements; at least one data-conducting path connecting an input sequential element to a destination sequential element; a clock outputting a clock signal on a clock tree for setting the speed of the sequential elements; a monitoring device receiving, as an input, at least one data signal traveling on a conducting path and arriving at a destination sequential element, the monitoring device including: a module for defining at least one detection window according to the clock tree; and a detector for detecting a transition of each data signal received during a detection window; and wherein each detection window is defined so as to enable the detection or anticipation of a fault corresponding to a violation of the rise time or the maintenance time of a data signal relative to a clock signal edge received by the destination sequential element receiving the data signal.
摘要:
A circuit for biasing the bulk of a MOS transistor, including a capacitive element connecting the bulk of the MOS transistor to a source of an voltage.
摘要:
This invention relates to a device for measuring the duration of a time interval between a start signal (D) and an end signal (F) comprising: a clock (H) supplying pulses with a period T, a digital circuit (2, 3, 4) to carry out a coarse measurement of the number of clock pulses between D and F, an analog circuit (6, 8, 10, 12, 14) to carry out a fine measurement of the time respectively between D and the first (respectively between F and the last) clock pulse which begins after D (respectively before F), this circuit comprising: means (8, 10) of generating N ramps with the same direction, means of sampling at least one the ramps at the instants that D and F occur. Application to a microlaser telemeter.
摘要:
A circuit for switching between multiple asynchronous clocks is provided. A synchronizer comprising D-type flip-flops, which are controlled by a clock change signal, are provided for each control signal being switched. Output signals provided by the synchronizers are used to control MOS transistor gates which switch the asynchronous clocks to the circuit output. The synchronizers also control a clamping transistor gate which clamps the circuit output to a reference during a switching operation. An additional synchronizer provides synchronization between the clock change signal and the circuit output allowing the circuit output to be interrupted at a known state.
摘要:
The invention relates to the asynchronous communication of data in complex integrated systems, be it inside integrated circuit chips or between integrated circuit chips, for example in a compact stack of chips. According to the invention, the transmission is done on a single conductor of exchanges. The data are transmitted on this conductor in the form of at least three levels of potential, the first level representing a first value of data item transmitted, the second representing a second value of data item transmitted, and the third representing an inactive level. An acknowledgment signal is transmitted on the same exchange conductor as the data. This signal is preferably sent by the receiver in the form of the forcing of the exchange conductor by the receiver to the inactive potential level, the sender detecting this forcing.
摘要:
This invention relates to an improved microelectronic RAM memory device, provided with 4T or 6T cells made using the double gate technology and each associated with two word lines.
摘要:
The integrated circuit comprises subassemblies connected in series enabling synchronization of the subassemblies to be achieved in simple manner. Each subassembly comprises a first and a second power supply terminal and a clock input. The subassemblies are connected in series to the terminals of a voltage supply source so that the same current flows through the different subassemblies. The clock input of each subassembly is connected to a common clock circuit by means of devices for shifting the clock signal levels, for example comprising capacitors and/or transistors. Each subassembly can comprise a decoupling capacitor and a voltage limiting circuit between its first and second power supply terminals.