ADE7880ACPZ-RL 데이터 시트보기 (PDF) - Analog Devices

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ADE7880ACPZ-RL

Polyphase Multifunction Energy Metering IC with Harmonic Monitoring

Analog Devices 

ADE7880

Data Sheet

FUNCTIONAL BLOCK DIAGRAM

RESET

4

REFIN/OUT VDD

17

26

AGND

25

AVDD

24

DVDD DGND

5

6

CLKIN 27

CLKOUT 28

IAP 7

PGA1

IAN 8

VAP 23

IBP 9

IBN 12

PGA1

VBP 22

ICP 13

ICN 14

PGA1

VCP 19

VN 18

INP 15

INN 16

PGA2

POR

LDO

LDO

1.2V

REF

HPFEN OF

DIGITAL

CONFIG3 INTEGRATOR AIGAIN

ADC

HPF

APHCAL

HPFEN OF

CONFIG3 AVGAIN

PGA3 ADC

HPF

ADC

PGA3 ADC

TOTAL/FUNDAMENTAL ACTIVE ENERGIES

FUNDAMENTAL REACTIVE ENERGY

APPARENT ENERGY

VOLTAGE CURRENT RMS

HARMONIC INFORMATION CALCULATION

FOR PHASE B

(SEE PHASE A FOR DETAILED DATA PATH)

ADC

PGA3 ADC

TOTAL/FUNDAMENTAL ACTIVE ENERGIES

FUNDAMENTAL REACTIVE ENERGY

APPARENT ENERGY

VOLTAGE/CURRENT RMS

HARMONIC INFORMATION CALCULATION

FOR PHASE C

(SEE PHASE A FOR DETAILED DATA PATH)

AIRMSOS

27

X2

LPF

AIRMS

APGAIN

X2

LPF

27

AVRMS

AVRMSOS

APGAIN

AWATTOS

LPF

COMPUTATIONAL

BLOCK FOR

FUNDAMENTAL

ACTIVE AND

REACTIVE POWER

APGAIN

AFWATTOS

PHASE A,

PHASE B,

AND

PHASE C

DATA

APGAIN

AFVAROS

COMPUTATIONAL

BLOCK FOR

HARMONIC

INFORMATION ON

PHASE A CURRENT

AND VOLTAGE

HPFEN OF

DIGITAL

CONFIG3 INTEGRATOR NIGAIN

COMPUTATIONAL BLOCK FOR HARMONIC

INFORMATION ON NEUTRAL CURRENT

NIRMSOS

ADC

HPF

X2

LPF

NIRMS

DIGITAL SIGNAL

PROCESSOR

ADE7880

2 PM0

3 PM1

CF1DEN

DFC

:

33 CF1

CF2DEN

DFC

:

34 CF2/HREADY

CF3DEN

DFC

:

35 CF3/HSCLK

SPI/I2C

I2C

HSDC

29 IRQ0

32 IRQ1

36 SCLK/SCL

38 MOSI/SDA

37 MISO/HSD

39 SS/HSA

Figure 1. ADE7880 Functional Block Diagram

Rev. C | Page 4 of 107

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