Datasheet

90E32AS ENHANCED POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Register 49 April 2, 2013
DetectTh1
Channel 1 Current Threshold in Detection Mode
DetectTh2
Channel 2 Current Threshold in Detection Mode
DetectTh3
Channel 3 Current Threshold in Detection Mode
Address: 11H
Type: Read/Write
Default Value: 0000H
Bit Name Description
15:8 CalCodeN
Channel 1 current negative detector calculation code.
Code mapping:
7'b000-0000, Vc = -1.2mV = --0.85mVrms (Vc is the threshold of low power computation)
7'b111-1111, Vc = 9mV = 6.35mVrms
DAC typical resolution is [9- (-1.2)]/256 = 40μV = 28μVrms
7:0 CalCodeP
Channel 1 current positive detector calculation code.
Code mapping:
7'b000-0000, Vc = -1.2mV = --0.85mVrms (Vc is the threshold of low power computation)
7'b111-1111, Vc = 9mV = 6.35mVrms
DAC typical resolution is [9- (-1.2)]/256 = 40μV = 28μVrms
Address: 12H
Type: Read/Write
Default Value: 0000H
Bit Name Description
15:8 CalCodeN
Channel 2 current negative detector calculation code.
Code mapping:
7'b000-0000, Vc = -1.2mV = --0.85mVrms (Vc is the threshold of low power computation)
7'b111-1111, Vc = 9mV = 6.35mVrms
DAC typical resolution is [9- (-1.2)]/256 = 40μV = 28μVrms
7:0 CalCodeP
Channel 2 current positive detector calculation code.
Code mapping:
7'b000-0000, Vc = -1.2mV = --0.85mVrms (Vc is the threshold of low power computation)
7'b111-1111, Vc = 9mV = 6.35mVrms
DAC typical resolution is [9- (-1.2)]/256 = 40μV = 28μVrms
Address: 13H
Type: Read/Write
Default Value: 0000H
Bit Name Description
15:8 CalCodeN
Channel 3 current negative detector calculation code.
Code mapping:
7'b000-0000, Vc = -1.2mV = --0.85mVrms (Vc is the threshold of low power computation)
7'b111-1111, Vc = 9mV = 6.35mVrms
DAC typical resolution is [9- (-1.2)]/256 = 40μV = 28μVrms
7:0 CalCodeP
Channel 3 current positive detector calculation code.
7'b000-0000, Vc = -1.2mV = --0.85mVrms (Vc is the threshold of low power computation)
7'b111-1111, Vc = 9mV = 6.35mVrms
DAC typical resolution is [9- (-1.2)]/256 = 40μV = 28μVrms