90E21 datasheet(7/57 Pages) IDT

tên linh kiện	90E21

Giải thích chi tiết về linh kiện	Single-Phase High-Performance Wide-Span Energy Metering IC

PDF	57 Pages

Scroll/Zoom	100%

nhà sản xuất	IDT [Integrated Device Technology]

Trang chủ	http://www.idt.com

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7 / 57 page

90E21/22/23/24

SINGLE-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC

Block Diagram

January 10, 2012

BLOCK DIAGRAM

Figure-1 90E21 Block Diagram

Figure-2 90E22 Block Diagram

Reference Voltage

Power On Reset

Crystal Oscillator

3-wire or 4-wire SPI

Vref

I1P

I1N

L Line Forward/Reverse Active Power

L Line Apparent Power

L Line Irms

Vrms

CS SCLK SDO SDI

OSCI

OSCO

RESET

∑△

ADC

∑△

ADC

HPF1

HPF0

DSP Module

PGA

X1/X4/X8/

X16/X24

PGA

Active Energy

Pulse Output

CF1

HPF1

HPF0

Power Factor/

Angle/Frequency

WarnOut/IRQ/ZX

IRQ

WarnOut

Reference Voltage

Power On Reset

Crystal Oscillator

3-wire or 4-wire SPI

Vref

I1P

I1N

L Line Forward/Reverse Active/

Reactive Power

L Line Apparent Power

L Line Irms

Vrms

CS SCLK SDO SDI

OSCI

OSCO

RESET

∑△

ADC

∑△

ADC

HPF1

HPF0

DSP Module

PGA

X1/X4/X8/

X16/X24

PGA

Active

Energy Pulse

Output

Reactive

Energy Pulse

Output

CF1

CF2

HPF1

HPF0

Power Factor/

Angle/Frequency

WarnOut/IRQ/ZX

IRQ

WarnOut

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