公开(公告)号：CA2109042A1

公开(公告)日：1994-06-05

申请号：CA2109042

申请日：1993-10-22

Applicant: IBM

Inventor： DICKOL JOHN E ,  DO DINH L ,  GRUODIS ALGIRDAS J

IPC: G01R31/3183 ,  G01R31/319 ,  G06F1/10 ,  H03K5/00 ,  H03K5/13 ,  H03K5/135

Abstract: A HIGH RESOLUTION PROGRAMMABLE PULSE GENERATOR A programmable pulse generator that uses high resolution programmable delay circuits (HRPDCs) as building blocks, each of which is capable of changing timing "on-the-fly", i.e., modifying the programmable delay within one tester cycle and without the limitations of existing delay circuits. The pulse generator comprises a timing control array that is subdivided into three components providing coarse delay, fine delay and extra-fine delay; a plurality of timing generators respectively controlled by the timing control array, each generator further comprising a plurality of HRPDCs, programmable delay circuits, and fixed delay blocks appropriately combined to modify pulse delay and pulse edges within each cycle.