90E32 Datasheet, PDF (67/71 Pages) Integrated Device Technology – Poly-Phase High-Performance Wide-Span Energy Metering IC

90E32
7.5 ZERO-CROSSING TIMING
V
POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
T_ZX
ZX
(Positive zero-crossing)
T_D
ZX
(Negative zero-crossing)
ZX
(All zero-crossing)
Figure-20 Zero-Crossing Timing Diagram (per phase)
Table-18 Zero-Crossing Specification
Symbol
T_ZX
T_D
Description
High Level Width
Delay Time
Min
Typ
Max
Unit
5
ms
0.2
0.5
ms
Electrical Specification
67
December 9, 2011