参数资料
型号: CDB5460AU
厂商: Cirrus Logic Inc
文件页数: 1/54页
文件大小: 0K
描述: EVALUATION BOARD FOR CS5460A
标准包装: 1
主要目的: 电源管理,电度表/功率表
嵌入式: 是,MCU,8 位
已用 IC / 零件: CS5460A
主要属性: 1 相电流和电压监控
次要属性: 图形用户接口,SPI? 和 USB 接口
已供物品: 板,线缆,软件
相关产品: CS5460A-BSZR-ND - IC ENERGY METERING 1PHASE 24SSOP
598-1701-ND - IC PWR/ENERGY 1PH BIDIR 24SSOP
598-1700-ND - IC PWR/ENERGY 1PH BIDIR 24SSOP
598-1094-5-ND - IC ENERGY METERING 1PHASE 24SSOP
CS5460A
Single Phase, Bi-directional Power/Energy IC
Features
? Energy Data Linearity: ±0.1% of Reading
over 1000:1 Dynamic Range.
? On-Chip Functions: (Real) Energy, I ? V,
I RMS and V RMS , Energy-to-Pulse
Conversion
? Smart “Auto-boot” Mode from Serial
EEPROM Enables Use without MCU.
? AC or DC System Calibration
? Mechanical Counter/Stepper Motor Driver
? Meets Accuracy Spec for IEC 687/1036, JIS
? Typical Power Consumption <12 mW
? Interface Optimized for Shunt Sensor
? V vs. I Phase Compensation
? Ground-Referenced Signals with Single
Supply
? On-chip 2.5 V Reference (MAX 60 ppm/°C
drift)
? Simple Three-wire Digital Serial Interface
? Watch Dog Timer
? Power Supply Monitor
? Power Supply Configurations
VA+ = +5 V; VA- = 0 V; VD+ = +3.3 V to +5 V
Description
The CS5460A is a highly integrated power mea-
surement solution which combines two ??
Analog-to-digital Converters (ADCs), high-speed
power calculation functions, and a serial interface
on a single chip. It is designed to accurately mea-
sure and calculate: Real (True) Energy,
Instantaneous Power, I RMS , and V RMS for single
phase 2- or 3-wire power metering applications.
The CS5460A interfaces to a low-cost shunt resis-
tor or transformer to measure current, and to a
resistive divider or potential transformer to mea-
sure voltage. The CS5460A features a
bi-directional serial interface for communication
with a microcontroller and a pulse output engine for
which the average pulse frequency is proportional
to the real power. The CS5460A has on-chip func-
tionality to facilitate AC or DC system-level
calibration.
The “Auto-boot” feature allows the CS5460A to
function ‘stand-alone’ and to initialize itself on sys-
tem power-up. In Auto-boot Mode, the CS5460A
reads the calibration data and start-up instructions
from an external EEPROM. In this mode, the
CS5460A can operate without a microcontroller, in
order to lower the total bill-of-materials cost.
VA+
RESET
VD+
4 Order
IIN+
IIN-
PGA
x10,x50
th
??
Modulator
Digital
Filter
High Pass
Filter
Power
Watch Dog
Timer
MODE
CS
Calculation
Engine
Control /
SDI
2 Order
VIN+
VIN-
VREFIN
x10
x1
nd
??
Modulator
Digital
Filter
(Energy
I*V
I RMS ,V RMS )
High Pass
Serial
Interface
Energy-to-
Pulse
Converter
SDO
SCLK
INT
EDIR
EOUT
Filter
VREFOUT
Voltage
Reference
Power
Monitor
System
Clock
/K
Clock
Generator
Calibration
SRAM
VA-
PFMON
XIN XOUT CPUCLK
DGND
Cirrus Logic, Inc.
http://www.cirrus.com
Copyright ? Cirrus Logic, Inc. 2011
(All Rights Reserved)
APR ‘11
DS487F5
1
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