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CS5461 Datasheet(PDF) 1 Page - Cirrus Logic |
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CS5461 Datasheet(HTML) 1 Page - Cirrus Logic |
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1 / 46 page  Preliminary Product Information This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice. 1 Copyright © Cirrus Logic, Inc. 2004 (All Rights Reserved) http://www.cirrus.com CS5461 Single Phase Bi-Directional Power/Energy IC Features Energy Data Linearity: ±0.1% of Reading over 1000:1 Dynamic Range On-Chip Functions: Energy, I ∗ V, IRMS and VRMS, Energy-to-Pulse Conversion AC/DC System Calibrations Meets Accuracy Spec for IEC 687/1036, JIS Power Consumption <12 mW On-Chip Temperature Sensor Voltage Sag Detect Adjustable Input Range on Current Channel Phase Compensation GND-Referenced Signals with Single Supply On-chip 2.5 V Reference (25 ppm/°C typ) Simple Three-Wire Digital Serial Interface Power Supply Monitor Interface Optimized for Shunt Sensor Mechanical Counter/Stepper Motor Drive Smart “Auto-Boot” Mode from Serial EEPROM with no microcontroller. Power Supply Configurations VA+ = +5 V; VA- = 0 V; VD+ = +3.3 V to +5 V Description The CS5461 is an integrated power measure- ment device which combines two ∆Σ ADCs, high speed power calculation functions, and a serial interface on a single chip. It is designed to accu- rately measure Instantaneous Current and Voltage, and calculate: Instantaneous Power, Average Power, IRMS, and VRMS, for sin- gle-phase 2- or 3-wire power metering applications. The CS5461 can interface to a low-cost shunt resistor or transformer for current measurement, and to a resistive divider or poten- tial transformer for voltage measurement. The CS5461 features a bi-directional serial interface for communication with a micro-controller and a programmable energy-to-pulse output function. CS5461 has on-chip functionality to facilitate AC or DC system-level calibration. Additional fea- tures include on-chip temperature sensor, voltage sag detection, and phase compensation. ORDERING INFORMATION: CS5461-IS -40 °C to +85°C 24-pin SSOP PGA VA+ VD+ IIN+ IIN- VIN+ VIN- VREFIN VREFOUT VA- XIN XOUT CPUCLK DGND CS SDO SDI SCLK INT FOUT High Pass Filter Voltage Reference System Clock /K Clock Generator Serial Interface E-to-F Power Monitor PFMON x1 RESET Digital Filter Calibration EDIR High Pass Filter MODE EOUT x10 Power Calculation Engine 4th Order ∆Σ Modulator 2nd Order ∆Σ Modulator Temperature Sensor Digital Filter x10,x50 Jan 04 DS546PP2 |
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