公开(公告)号：EP3872988A1

公开(公告)日：2021-09-01

申请号：EP21159784.4

申请日：2021-02-26

Applicant: STMicroelectronics S.r.l.

Inventor： PASSI, Stefano ,  BARDELLI, Roberto Giorgio ,  MORONI, Anna

IPC: H03K4/02

Abstract: A waveform generator includes: a system control unit (2) and a plurality of channels, (3.1, ..., 3.N) controlled by the system control unit (2) and configured to supply driving signals (V1, ..., VM) for driving a respective one of an array of transducers (5.1, ..., 5.N). Each channel includes: a sequential access memory (10) having a plurality of rows, each containing instruction words (W) configured to generate a respective step of a waveform, and a memory output (10a) defined by an output row at a fixed location, the waveform being defined by a block of instruction words (W). Each channel also includes an internal control unit (12), configured to sequentially move the content of the sequential access memory (10), based on the instruction word (W) currently at the memory output (10a), so that sequences of instruction words (W) are provided at the output row (10a).