ade7854 Analog Devices, Inc., ade7854 Datasheet - Page 4
ade7854
Manufacturer Part Number
ade7854
Description
Poly Phase Multifunction Energy Metering Ic With Neutral Current Measurement
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADE7854.pdf
(71 pages)
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Part Number:
ade7854ACPZ
Manufacturer:
ADI/亚德诺
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20 000
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ADE7854
FUNCTIONAL BLOCK DIAGRAM
CLKOUT
CLKIN
VAP
VBP
VCP
IAP
IAN
IBP
IBN
ICP
ICN
VN
27
28
23
12
22
13
14
19
18
7
8
9
PGA1
PGA1
PGA1
RESET
4
1.2V
REF
PGA3
PGA3
PGA3
REFin/out
ADC
ADC
ADC
ADC
ADC
ADC
17
APHCAL
VDD
POR
26
Φ
Φ
TOTAL/FUNDAMENTAL ENERGIES
TOTAL/FUNDAMENTAL ENERGIES
(see phase A for detailed data path)
(see phase A for detailed data path)
ACTIVE/ REACTIVE/APPARENT
AND VOLTAGE/CURRENT RMS
ACTIVE/ REACTIVE/APPARENT
AND VOLTAGE/CURRENT RMS
CALCULATION FOR PHASE C
CALCULATION FOR PHASE B
AGND
25
AVGAIN
AIGAIN
LDO
AVDD
24
HPFDIS[23:0]
HPFDIS[23:0]
HPF
HPF
LDO
Figure 1. ADE7854 Functional Block Diagram
DVDD
Integrator
Integrator
5
Digital
Digital
DGND
6
Rev. PrC| Page 4 of 71
x
x
Reactive Power
Computational
Block for Total
2
2
LPF
LPF
LPF
AWATTOS
Σ
AVRMSOS
AIRMSOS
AVAROS
Σ
Σ
Σ
AWGAIN
AVARGAIN
AVRMS
AIRMS
Preliminary Technical Data
Digital Signal
Processor
AVAGAIN
A,B and
C data
Phase
DFC
DFC
DFC
SPI/I2C
HSDC
I2C
CFxDEN
CFxDEN
CFxDEN
:
:
:
33
34
35
29
32
36
38
37
39
2
3
IRQ
IRQ
SS
PM0
PM1
CF1
CF2
CF3/HSCLK
SCLK/SCL
MOSI/SDA
MISO/HSD
/HSA
0
1
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