Energy Measurement 2012 Product Portfolio

N L SOC Energy Measurement Redefined MCU A 8k Flash 2 Serial Ports AFE As the high-precision leader in Analog Front End (AFE) ICs for energy measurement since 1999, Cirrus Logic chips have helped to drive revolutionary, cutting-edge products that are at the heart of global smart grids and smart power applications. Cirrus Logic’s broad family of AFE products have each been developed around three common principles: Vin+/- Shunt/ CT Rogowski lin+/- Cirrus Logic 548X 549X Serial MCU B Pulse 32k Flash LCD Driver 3 Serial Ports MCU C 256k Flash LCD Driver 5 Serial Ports Highest precision measurement...

Digital Utility Meters Cirrus Logic AFEs for digital utility meters have shaped the global roll out of new generations of digital electric utility meters for more than a decade. Working closely with leading global smart meter OEMs, Cirrus has helped to define and build ICs that have enabled the cost-effective deployment of high-accuracy smart meters that have directly contributed to the development of smart grids throughout the world. Cirrus Logic’s advantages in this market: HIGHEST ACCURACY: We understand accuracy requirements driven by utilities and local regulators, and can help you meet...

CS5490: Single-phase, 2-channel Utility Meter CS5484: Single-phase 4-channel Utility Meter (with shunt resistor) 0.1 uF +3.3V (2 current transformers or 2 Rogowski coils) +3.3V 0.1 uF 0.1 uF VVDA MODE 5x400K N L2 +3.3V 27nF 1K 27nF VIN- 1K TX 1K 5x200K 27nF 27nF Meter MCU 4.096 MHz XOUT IIN- 1K RX XIN 27nF 5x200K TX IIN+ Shunt 1K CT Rb 27nF 1K 1K 1K 27nF VREF+ LOAD 0.1 uF +3.3V D01 10K CT RESET Rb 1K 1K 27nF 1K +3.3V VIN1- 0.1 uF VIN2- D03 D04 VIN2+ IIN1+ Zero Crossings Interrupt RX TX Meter MCU XIN 4.096 MHz XOUT IIN1- VREF+ 1K +3.3V VREFGNDA +3.3V Varh VIN1+ CS5484 CS5490 RX 27nF VDDD D02 1K...

3-phase Utility Meter — Non-Isolated Sensor (shunt resistor) 3-phase Utility Meters N B C GND_A 27nF GND_A 1K MODE VDDD VIN1- 27nF 1K VVDA 0.1 uF +3.3V +3.3V_1 0.1 uF SSEL VIN1+ GND CS 5x400K GND_A 1K IIN1+ 27nF 1K 27nF GND_A RX Isolation The following application diagrams show two alternate solutions for 3-phase utility meters. The first requires three devices and is applied for non-isolated current sensors – typically a shunt resistor. The second requires just two devices and applies to meter configurations with isolated sensors, either current transformers or Rogowski coils. A +3.3V_1 CS5480...

3-phase Utility Meter – Isolated Sensor (current transformer or Rogowski coil) 0.1 uF A N B C +3.3V VVDA 0.1 uF MODE VDDD +3.3V +3.3V_1 0.1 uF SSEL 3-phase Utility Meter with Isolated Sensor 1K 5x400K 27nF VIN1- 1K Configuration 1K CT Rb 1K 1K 27nF VIN2- 27nF 5x400K 27nF 10K RESET IIN1- 1K 1K +3.3V IIN1+ 27nF 1K 1.0 uF CS5484 In the 3-phase wye configuration, Phases A and B are connected to the first CS5484 (top in the diagram) and Phase C is connected to the second CS5484 (bottom in the diagram). For current measurement, a current transformer on each phase is connected to a differential current...

Smart Appliances To effectively monitor energy usage within the home, consumers need to understand how their appliances — washing machines, dryers, refrigerators, etc., — consume electricity. For this reason, a new breed of wireless-enabled “smart appliances” have emerged as one of the fastest-growing segments of the energy measurement market. If consumers can, in effect, itemize the consumption, they are empowered with the knowledge to make informed decisions to better manage and optimize overall consumption habits or even perhaps remedy a malfunctioning device: Is the refrigerator consuming...

Smart Power Supply Smart Plug / Smart Strips Smart power supply monitoring systems are designed for measuring and relaying energy usage information in high-performance systems such as servers, telecommunications racks, storage racks and PCs. Continuously increasing demand for computer resources such as cloud computing has resulted in exponential growth in the number of data center servers. Smart plugs and smart powerstrips were, until recent years, unknown consumer devices. These products are a rapidly growing segment of the energy measurement market that is being driven by consumers seeking...

CS5484 The CS5484 is a high performance analog front end solution for energy measurement with four 24-bit analog to digital converters. It provides high-accuracy energy measurement at a very low price, and on-chip energy calculations and fast on-chip calibration speeds product development cycles. Flexibility in current sensors, serial communications and digital outputs ensures that the CS5484 is a fit for any application requiring high-accuracy energy measurement at a very low price. CS5484/80/90 Energy Measurement ICs VDDA VDDD RESET IIN1+ 4th Order PGA SSEL HPF Option Digital Filter ΔΣ Modulator...

CS5480 CS5490 The CS5480 is a high performance analog front end solution for energy measurement with three 24-bit analog to digital converters. It provides high-accuracy energy measurement at a very low price, and on-chip energy calculations and fast on-chip calibration speeds product development cycles. Flexibility in current sensors, serial communications and digital outputs ensures that the CS5484 is a fit for any application requiring high-accuracy energy measurement at a very low price. The CS5490 is a high performance analog front end solution for energy measurement with two 24-bit analog...

Performance Statistics Product Selector Table Active Energy Accuracy Part 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 0.1% over 4000:1 dynamic range 0.1% over 4000:1 dynamic range 0.1% over 4000:1 dynamic range 0.1% over 1000:1 dynamic range 0.1% over 1000:1 dynamic range 0.1% over 1000:1 dynamic range N/A 0.1% over 4000:1 dynamic range 0.1% over 4000:1 dynamic range 0.1% over 4000:1 dynamic range 0.2% over 1000:1 dynamic range 0.2% over 1000:1 dynamic range 0.2% over 1000:1...