Four Channel Energy Measurement IC CS5484/80/90 VDDA RESET VDDD Market Applications Utility Meters IIN1+ 4t4thh O Orrddeerr SSEL HHPPF F PGA DigDigiittalal F Fiilltteerr OpOpttiionon ModModulaulattoorr IIN1- CS Power Supply Monitoring UART/SPI Serial RX/SDI Interface IIN2+ 4t4thh O Orrddeerr HHPPF F TX/SDO PGA DigDigiittalal F Fiilltteerr Smart Appliances OpOpttiionon ModModulaulattoorr IIN2- SCLK Home Energy Management VIN1+ 4t4thh O Orrddeerr HHPPF F DO1 10x DigDigiittalal F Fiilltteerr Calculation ModModulaulattoorr OpOpttiionon VIN1- Emerging Smart Home and Smart Grid DO2 Configurable Digital Applications Outputs DO3 VIN2+ M 4t4thh O Orrddeerr HHPPF F U 10x DigDigiittalal F Fiilltteerr DO4 ModModulaulattoorr OpOpttiionon X VIN2- VREF+ Temperature System Voltage Clock Generator Sensor Clock Reference VREF- MODE GNDA XIN XOUT CPUCLK GNDD For manufacturers of utility meters, appliances and smart home energy solutions, Cirrus Logics CS5484/80/90 family of analog front end (AFE) energy measurement ICs provide the industrys highest measurement accuracy and lowest cost, with the flexibility and ease of use to react quickly to rapidly changing market conditions. The CS548/9X family, when combined with an MCU of your choice, offers a clear alternative to system-on-a-chip solutions, whose one size fits all approach limits the designers ability to optimize the design for performance and cost requirements. With an energy measurement accuracy of 0.1% over 4,000:1 dynamic range, the CS548/9X family offers superior measurement performance with no user programming required, and ultra-fast calibration. Its multiple interface options, including UART, SPI and four digital outputs, provide flexibility to quickly react to changing market requirements. Plus, each digital output is individually configurable to provide energy pulses, zero crossing, energy direction or interrupt functions on any of the provided pins. Features: Superior analog performance with ultra low On-chip measurements / calculations: A A Cirrus Logic, Inc. A Active, reactive and apparent power noise level and high SNR 2901 Via Fortuna A RMS voltage and current Energy measurement accuracy of 0.1% over A Austin, Texas 78746 A Power factor and line frequency 4000:1 dynamic range A Instantaneous voltage, current and power United States A Overcurrent, voltage sag and voltage Current RMS measurement accuracy of 0.1% T +1-512-851-4000 A swell detection over 1000:1 dynamic range F +1-512-851-4977 UART / SPI serial interface options Toll-Free +1-800-888-5016 A 2, 3 or 4 independent 24-bit, 4th-order Delta A Sigma modulators for voltage and current Internal register protection via checksum and A measurement write-protection Sales Support North America +1 800-625-4084 Configurable digital outputs for energy pulses, A On-chip voltage reference (25 ppm/C typ.) A zero crossing or energy direction Asia Pacific +852 2376-0801 Single 3.3V power supply A Japan +81 (3) 5226-7757 Supports shunt resistor, CT and Rogowski coil A Low power consumption: <13mW A Europe/UK +44 (90) 1628-891-300 current sensors Small, low cost package options A www.cirrus.comElectrical Specifications Active Energy Accuracy Reactive Energy Accuracy I Accuracy RMS 1 1 1 Lagging PF = 0.5 l Error RMS Leading PF = 0.5 0.5 0.5 0.5 PF=1 0 0 0 -0.5 -0.5 -0.5 -1 -1 -1 05 00 1000 1500 2000 2500 3000 3500 4000 4500 05 00 1000 1500 2000 2500 3000 3500 4000 4500 05 00 1000 1500 Current Dynamic Range (x:1) Current Dynamic Range (x:1) AFE + MCU Advantage vs Using SOCs Pre-programmed industry standard power calculations saves A money and accelerates production schedules and time to market Up to 10X faster calibration A Pair Cirrus Logic AFE with cost-optimized microcontroller tailored to A the demands of the application Lock in AFE for metrology and easily change MCU to quickly adapt A to changing market requirements Never pay for more memory, IO or performance than required A Demonstration Board The CDB5484/80/90U is an extensive tool designed to evaluate the functionality and performance of the Cirrus Logic CS5484/80/90 family. Shunt resistors, current transformers or Rogowski coils can be connected to the analog inputs. Intuitive GUI software provides easy and full access to the on-board CS5484/80/90 device and MCU. On-board LEDs and LCD displays enable stand alone operation for extended testing. Getting started with a CDB enables fast and easy preliminary evaluation of Cirrus Logics AFE products. Part CS5484 CS5480 CS5490 CS5467 CS5464 CS5463 CS5451A ADC Converters 4 3 2 4 3 2 6 Current Sensor Options Shunt/CT/Rogowski Shunt/CT/Rogowski Shunt/CT/Rogowski Shunt/CT Shunt/CT Shunt/CT Shunt/CT Active Energy 0.1% over 4000:1 0.1% over 4000:1 0.1% over 4000:1 0.1% over 1000:1 0.1% over 1000:1 0.1% over 1000:1 N/A Accuracy dynamic range dynamic range dynamic range dynamic range dynamic range dynamic range Reactive Energy 0.1% over 4000:1 0.1% over 4000:1 0.1% over 4000:1 0.2% over 1000:1 0.2% over 1000:1 0.2% over 1000:1 N/A Accuracy dynamic range dynamic range dynamic range dynamic range dynamic range dynamic range I Accuracy 0.1% over 1000:1 0.1% over 1000:1 0.1% over 1000:1 0.1% over 1000:1 0.1% over 1000:1 0.2% over 1000:1 N/A RMS dynamic range dynamic range dynamic range dynamic range dynamic range dynamic range SNR 80dB 80dB 80dB 78dB 78dB 78dB 77dB Serial Communication SPI/ UART SPI/ UART UART SPI SPI SPI SPI Digital Outputs 4x Configurable 3x Configurable Single Configurable Energy Pulses Energy Pulses Energy Pulses Outputs Outputs Output V Drift REF 25ppm/C 25ppm/C 25ppm/C 40ppm/C 40ppm/C 40ppm/C 25ppm/C Input Voltage 3.3V 3.3V 3.3V 5V Analog 5V Analog 5V Analog 3V Analog 3.3/5V Digital 3.3/5V Digital 3.3/5V Digital 3V Digital Power Consumption <13mW <13mW <13mW 25mW 25mW 21mW 23mW Package 28 QFN 24 QFN 16 SOIC 28 SSOP 28 SSOP 24 SSOP 28 SSOP Percent Error (%) Percent Error (%) Percent Error (%)