Teledyne E2v Semiconductors Sas

Marc Stackler

Rémi Laube

Jérôme Ligozat

Quentin Béraud-Sudreau

Etienne Bouin

Quentin Beraud-sudreau

Quentin Bureau-Sudreau

The invention relates to a method for synchronizing a plurality of analogue-digital or digital-analogue converters (CONV_k), the converters (CONV_k) all being connected to a control unit (UC), and to a clock (CLK) that has a predefined clock period (T), the converters being also chained step-by-step so as to form a chain of converters, each converter (CONV_k) generating an internal synchronization signal (internal_sync_k) configured to supply a time reference on the transmission of data by the converter (CONV_k). The method allows the synchronization of the converters to be guaranteed using a process of learning and of configuration of the converters. The method allows any line distance constraint on the synchronization signal to be overcome.

Method for synchronizing analogue-digital or digital-analogue converters, and corresponding system

A method for synchronizing analog data (Data_ana, Data_ana) at the output of a plurality of digital/analog converters (DAC), comprising at least one conversion core (C, C), on an active edge of a common reference clock (Clk), the method comprising the following steps: a) supplying an external synchronization signal (SYNC_ext), to at least one converter, and supplying a signal of the common reference clock to the plurality of converters; b) generating, within each converter, an internal synchronization signal (SYNC_int), such that all the internal synchronization signals are aligned on an active edge of the common reference clock; c) for each of the converters, generating a start signal (START, START) which represents the start of the sending of digital data and counting a number of clock strokes until the internal synchronization signal is generated, and; d) applying a delay Ri (R, R) to each converter core, the delay being equal to the difference between the highest number counted in step c) and the number counted for the core. Device for implementing such a method.

Method for synchronising analogue data at the output of a plurality of digital/analogue converters

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Hong Kong, China

Marc Stackler