CDB5463U Cirrus Logic Inc, CDB5463U Datasheet - Page 41

• Manufacturer Part Number: CDB5463U
• Description: BOARD EVAL & SOFTWARE CS5463 ADC
• Manufacturer: Cirrus Logic Inc
• Type: A/Dr

Specifications of CDB5463U

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CS5463
• Primary Attributes: 1-Phase, Energy-to-Frequency Output
• Secondary Attributes: GUI, USB, SPI Interfaces
• Product: Data Conversion Development Tools
• Maximum Clock Frequency: 4 MHz
• Interface Type: USB
• Supply Voltage (max): 5 V
• Supply Voltage (min): 3.3 V
• For Use With/related Products: CS5463
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1553

9. BASIC APPLICATION CIRCUITS
Figure 18
power in a single-phase, 2-wire system while operating
in a single-supply configuration. In this diagram, a shunt
resistor is used to sense the line current and a voltage
divider is used to sense the line voltage. In this type of
shunt-resistor configuration, the common-mode level of
the CS5466 must be referenced to the line side of the
power line. This means that the common-mode poten-
tial of the CS5463 will track the high-voltage levels, as
well as low-voltage levels, with respect to earth ground.
Isolation circuitry is required when an earth-ground-ref-
erenced communication interface is connected.
DS678F2
shows the CS5463 configured to measure
Figure 18. Typical Connection Diagram (Single-phase, 2-wire – Direct Connect to Power Line)
N
R
2
120 VAC
R
1
L
470 nF
R
Note:
Shunt
Indicates common (floating) return.
500 Ω
R
R
I-
I+
R
V-
470 µF
C
C
500
I+
I-
C
C
V+
V-
0.1 µF
Figure 19
tem with complete isolation from the power lines. This
isolation is achieved using three transformers: a general
purpose transformer to supply the on-board DC power;
a high-precision, low-impedance voltage transformer,
with very little roll-off/phase-delay, to measure voltage;
and a current transformer to sense the line current.
Figure 20
many 3-wire residential power systems within the Unit-
ed States, only the two line terminals are available (neu-
tral is not available).
configured to meter a three-wire system with no neutral
available.
C
C
Idiff
Vdiff
0.1 µF
10
15
16
12
11
9
IIN-
VIN+
VIN-
IIN+
VREFIN
VREFOUT
VA+
AGND
14
shows the same single-phase, two-wire sys-
shows a single-phase, 3-wire system. In
13
CS5463
10 Ω
DGND
CPUCLK
PFMON
RESET
XOUT
SCLK
4
VD+
SDO
XIN
SDI
INT
CS
E2
E1
3
5 kΩ
Figure 21
22
21
17
2
1
24
19
7
23
6
5
20
0.1 µF
Mech. Counter
Stepper Motor
4.096 MHz
or
Optional
Source
10 k Ω
Clock
shows the CS5463
Interface
Serial
Data
CS5463
41