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CS5461A-ISZ Arkusz danych(PDF) 1 Page - Cirrus Logic |
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CS5461A-ISZ Arkusz danych(HTML) 1 Page - Cirrus Logic |
1 / 41 page Copyright © Cirrus Logic, Inc. 2005 (All Rights Reserved) http://www.cirrus.com CS5461A Single Phase, Bi-directional Power/Energy IC Features • Energy Data Linearity: ±0.1% of Reading over 1000:1 Dynamic Range • On-chip Functions: - Instantaneous Voltage, Current, and Power - IRMS and VRMS, Apparent and Active (Real) Power - Energy-to-pulse Conversion for Mechanical Counter/Stepper Motor Drive - System Calibrations and Phase Compensation - Temperature Sensor - Voltage Sag Detect • Meets Accuracy Spec for IEC, ANSI, & JIS. • Low Power Consumption • Current Input Optimized for Sense Resistor. • GND-referenced Signals with Single Supply • On-chip 2.5 V Reference (25 ppm/°C typ) • Power Supply Monitor • Simple Three-wire Digital Serial Interface • “Auto-boot” Mode from Serial E2PROM. • Power Supply Configurations: VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to +5 V Description The CS5461A is an integrated power measure- ment device which combines two ∆Σ analog-to-digital converters, power calculation engine, energy-to-frequency converter, and a serial interface on a single chip. It is designed to accurately measure instantaneous current and voltage, and calculate VRMS, IRMS, instanta- neous power, apparent power, and active power for single-phase, 2- or 3-wire power metering applications. The CS5461A is optimized to interface to shunt resistors or current transformers for current mea- surement, and to resistive dividers or potential transformers for voltage measurement. The CS5461A features a bi-directional serial in- terface for communication with a processor, and a programmable energy-to-pulse output func- tion. Additional features include on-chip functionality to facilitate system-level calibration, temperature sensor, voltage sag detection, and phase compensation. ORDERING INFORMATION: See Page 41. VA+ VD+ IIN+ IIN- VIN+ VIN- VREFIN VREFOUT AGND XIN XOUT CPUCLK DGND CS SDO SDI SCLK INT Voltage Reference System Clock /K Clock Generator Serial Interface E-to-F Power Monitor PFMON x1 RESET Digital Filter Calibration MODE Power Calculation Engine 4th Order ∆Σ Modulator 2nd Order ∆Σ Modulator Temperature Sensor Digital Filter PGA HPF Option HPF Option E1 E2 E3 x10 AUG ‘05 DS661F1 |
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