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CS5484-INZ 参数 Datasheet PDF下载

CS5484-INZ图片预览
型号: CS5484-INZ
PDF下载: 下载PDF文件 查看货源
内容描述: 四通道电能计量IC [Four Channel Energy Measurement IC]
分类和应用:
文件页数/大小: 68 页 / 802 K
品牌: APEX [ CIRRUS LOGIC ]
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CS5484
Four Channel Energy Measurement IC
Features
& Description
Superior Analog Performance with Ultra-low Noise Level
and High SNR
Energy Measurement Accuracy of 0.1% over 4000:1
Dynamic Range
Current RMS Measurement Accuracy of 0.1% over 1000:1
Dynamic Range
4 Independent 24-bit, 4
th
-order, Delta-Sigma Modulators
for Voltage and Current Measurements
4 Configurable Digital Outputs for Energy Pulses,
Zero-crossing, or Energy Direction
Supports Shunt Resistor, CT, and Rogowski Coil Current
Sensors
On-chip Measurements/Calculations:
-
Active, Reactive, and Apparent Power
-
RMS Voltage and Current
-
Power Factor and Line Frequency
-
Instantaneous Voltage, Current, and Power
Overcurrent, Voltage Sag, and Voltage Swell Detection
Ultra-fast On-chip Digital Calibration
Internal Register Protection via Checksum and Write
Protection
UART/SPI™ Serial Interface
On-chip Temperature Sensor
On-chip Voltage Reference (25ppm/°C Typ.)
Single 3.3V Power Supply
Ultra-fine Phase Compensation
Low Power Consumption: <13mW
Power Supply Configurations
-
GNDA = GNDD = 0V, VDDA = +3.3V
5mmx5mm 28-pin QFN Package
See
VDDA
IIN1+
IIN1-
4
th
Order

Modulator
Description
The CS5484 is a high-accuracy, four-channel, energy
measurement analog front end.
The CS5484 incorporates independent 4
th
order Delta-Sigma
analog-to-digital converters for every channel, reference
circuitry, and the proven EXL signal processing core to provide
active, reactive, and apparent energy measurement. In
addition, RMS and power factor calculations are available.
Calculations are output through a configurable energy pulse,
or direct UART/SPI™ serial access to on-chip registers.
Instantaneous current, voltage, and power measurements are
also available over the serial port. Multiple serial options are
offered to allow customer flexibility. The SPI provides higher
speed, and the 2-wire UART minimizes the cost of isolation
where required.
Four configurable digital outputs provide energy pulses,
zero-crossing, energy direction, and interrupt functions.
Interrupts can be generated for a variety of conditions
including voltage sag or swell, overcurrent, and more. On-chip
register integrity is assured via checksum and write protection.
The CS5484 is designed to interface to a variety of voltage and
current sensors including shunt resistors, current
transformers, and Rogowski coils.
On-chip functionality makes digital calibration simple and
ultra-fast, minimizing the time required at the end of the
customer production line. Performance across temperature is
ensured with an on-chip voltage reference with low drift. A
single 3.3V power supply is required, and power consumption
is low at <13mW. To minimize space requirements, the
CS5484 is offered in a low-cost, 5mm x5mm 28-pin QFN
package.
VDDD
HPF
Option
ORDERING INFORMATION
RESET
Digital
Filter
PGA
CS5484
SSEL
CS
RX / SDI
TX / SDO
SCLK
Calculation
DO1
Configurable
Digital
Outputs
DO2
DO3
DO4
IIN2+
IIN2-
PGA
4
th
Order

Modulator
Digital
Filter
HPF
Option
UART/SPI
Serial
Interface
VIN1+
VIN1-
10x
4
th
Order

Modulator
Digital
Filter
HPF
Option
VIN2+
VIN2-
10x
M
U
X
4
th
Order

Modulator
System
Clock
Digital
Filter
HPF
Option
Temperature
Sensor
MODE
GNDA
Clock
Generator
Voltage
Reference
GNDD
VREF+
VREF-
XIN
XOUT
CPUCLK
Cirrus Logic, Inc.
Copyright
Cirrus Logic, Inc. 2012
(All Rights Reserved)
JUN’12
DS981F2