产品概述 返回TOPfnX嘉泰姆

The CXEP2347 is a low-power, single-phase energy measurement system-on-chip (SoC), and the CXEP2348 is a low-power polyphase energy measurement SoC. Based on an ARM Cortex-M3 core, the devices can run modern operating systems that monitor and report energy usage and implement communications stacks. In addition to the main administrative core, the devices include a MAXQ30 CPU core to perform metering functions and a discrete compute engine for the DSP related tasks necessary for accurate energy monitoring and measurement, last cycle analysis, and FFT functions to compute the frequency spectra of the selected channel. The DSP core provides the following energy and power measurement features in registers: 

● Active energy and power per phase and sum 

● Apparent energy and power per phase and sum 

● Reactive energy and power per phase and sum 

● Line voltage and current RMS 

● Neutral current RMS 

● Current vector sum, three-phase plus neutral 

● Line frequency 

● Fundamental frequency 

● Total harmonics of active power, reactive power, voltage, and currents 

● Security features

   产品特点 返回TOPfnX嘉泰姆

SoC Integration and Unique Isolation Technique Reduces BOM Cost Without Sacrificing Performance fnX嘉泰姆

• Watt-Hour Accuracy of 0.1% at Up to 5,000:1 Dynamic Range fnX嘉泰姆

• Sample Frequency Configurable; ΣΔ Sample Rate Configurable Up to 9.83MHz • Flexible Analog Input Configuration Support Current Transformers, Shunts, or Rogowski Coils fnX嘉泰姆

• 2.7V to 3.6V Operating Voltage fnX嘉泰姆

• Single 32.768kHz Crystal Provides All Operating ClocksfnX嘉泰姆

● ARM Core M3 Application Processor Enables Rapid System Development fnX嘉泰姆

• 1MB Flash fnX嘉泰姆

• 64KB Code RAM fnX嘉泰姆

• 64KB System RAM fnX嘉泰姆

• Six UART Channels fnX嘉泰姆

• Seven Timer Channels fnX嘉泰姆

• I2C Master/Slave Peripheral fnX嘉泰姆

• Three SPI Peripherals fnX嘉泰姆

• Smart Card Interface fnX嘉泰姆

● MAXQ30 Features fnX嘉泰姆

• 64KB Program RAM fnX嘉泰姆

• 8KB Data RAM fnX嘉泰姆

• 16KB Page RAM fnX嘉泰姆

• Four Meter Pulse Outputs (Configurable) fnX嘉泰姆

• Two I2C Master/Slave Peripherals fnX嘉泰姆

• SPI Master/Slave Peripheral fnX嘉泰姆

• 50-Segment, 6-Common LCD Interface fnX嘉泰姆

● Security Features Reduce or Eliminate Common Security Threats fnX嘉泰姆

• Built-In Cryptographic Modules Ensure Communications Are Kept Secure fnX嘉泰姆

• Tamper Detect Inputs Ensure Attempts to Breach the Case Are Recorded and Reported fnX嘉泰姆

• Two Independent Cores Ensures Compliance with All Current and Future Security Requirements fnX嘉泰姆

● Analog Front-End fnX嘉泰姆

• Seven (CXEP2348) or Four (CXEP2347) 24-Bit ΣΔ A/D Converters fnX嘉泰姆

• Three (CXEP2348) or Two (CXEP2347) Voltage Inputs fnX嘉泰姆

• Four (CXEP2348) or Three (CXEP2347) Differential Current InputsfnX嘉泰姆

   应用范围 返回TOPfnX嘉泰姆

● Smart and Secure Single-Phase Energy Meters fnX嘉泰姆

● Smart and Secure Polyphase Energy Meters fnX嘉泰姆

● MID/WELMEC-Compliant MetersfnX嘉泰姆

   技术规格书（产品PDF) 返回TOP fnX嘉泰姆

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