CS5467-IS Ver la hoja de datos (PDF) - Cirrus Logic
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CS5467-IS Datasheet PDF : 46 Pages
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CS5467
11. BASIC APPLICATION CIRCUITS
Figure 14 shows the CS5467 configured to measure
power in a single-phase, 3-wire system while operating
in a single-supply configuration. In this diagram, current
transformers (CT) are used to sense the line currents
and voltage dividers are used to sense the line voltages.
L2
N
L1
500 Ω
2 uF
500
470 µF
5 kΩ
10 kΩ
10 Ω
0.1 µF
18
VA+
3
VD+
0.1 µF
R2 R1
R1 R2
CT
CT
LOAD
LOAD
R V-
R V-
½ RBurden
½ RBurden
½ RBurden
½ RBurden
R I-
RI+
RI-
RI+
13 VIN2+
CV+
CVdiff
CS5467
CV-
14 VIN2-
21
PFMON
CPUCLK 2
9 VIN1+
XOUT 1
CV+
CVdiff
CV-
XIN 28
10 VIN1-
19 IIN1-
C I-
C Idiff
CI+
20 IIN1+
15
IIN2-
C I-
C Idiff
CI+
16 IIN2+
23
RESET
CS 7
SDI 27
SDO 6
SCLK 5
INT 24
E2 26
E1 25
0.1 µF
12 VREFIN
11 VREFOUT
AGND
17
DGND
4
4.096 MHz
Optional
Clock
Source
Serial
Data
Interface
Pulse Output
Counter
Figure 14. Typical Connection Diagram (Single-phase, 3-wire – Direct Connect to Power Line)
DS714F1
43
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