CS5464-ISZ

Overview

The CS5464-ISZ is a single-phase power and energy integrated circuit designed for high-precision measurement applications. It integrates three delta-sigma analog-to-digital converters, a power calculation engine, an energy-to-frequency converter, and a serial interface on a single chip. The device accurately measures instantaneous current and voltage to calculate VRMS, IRMS, active power, apparent power, and reactive power. It features energy data linearity of ±0.1% over a 1000:1 dynamic range and meets accuracy specifications for IEC, ANSI, and JIS standards. The component operates with a +5 V supply for analog voltage inputs (VA+), 0 V analog ground (AGND), and a +3.3 V to +5 V digital supply (VD+).

Feature Summary

• Integrates three delta-sigma ADCs and a power calculation engine for comprehensive single-phase energy monitoring.
• Provides on-chip functions including RMS calculations, fault detection, temperature sensing, and energy-to-pulse conversion.
• Supports system calibration and phase compensation to ensure compliance with international metering standards.

Applications

• High-performance single-phase power measurement systems
• Smart electricity meters compliant with IEC, ANSI, and JIS regulations
• Two-wire distribution systems requiring tamper detection

Procurement Notes

Verify the specific suffix ISZ against official Cirrus Logic documentation to confirm package type and RoHS compliance status. Confirm availability as this component may be subject to discontinuation or limited stock conditions. Ensure that the required supply voltages (+5V VA+, +3.3V-5V VD+) are compatible with the target system design before procurement.

Selection Notes

Select the CS5464-ISZ for applications requiring precise single-phase energy monitoring with integrated signal conditioning. This component is suitable where compliance with IEC, ANSI, and JIS accuracy standards is mandatory. Consider the need for on-chip reference and calibration features to reduce external component count. Verify that the system can support the specified digital and analog supply voltage ranges.

Part Context

The CS5464 belongs to the Cirrus Logic CS546x series of power monitoring ICs. This family is known for integrating complex analog and digital signal processing functions into a single chip, simplifying the design of high-accuracy energy meters. The CS5464 specifically targets single-phase applications, offering a compact solution compared to discrete implementations.

Replacement Considerations

Publicly confirmed substitute part numbers for the CS5464-ISZ are not available in the provided source material. Consult official Cirrus Logic documentation for potential obsolescence notices or recommended alternative devices within the same product family.