◆Provide three ∑ - △ ADCs

◆Active energy error is less than 0.1% within the dynamic range of 8000:1, supporting the requirements of IEC62053-22:2003 standard

◆Provide effective value measurement for two currents and one voltage, with an effective value error of less than 0.1% within a dynamic range of 1000:1

◆ Provide a pulse frequency generator that can be used to accumulate and integrate electrical energy for user-defined power;

◆ Adjustable stealth threshold

◆ Provide reverse power indication

◆ Provide voltage channel frequency measurement

◆ Provide zero crossing detection for voltage channels

◆ Provide reference benchmark monitoring function

software regulating meter

◆ The electric meter constant (HFConstant) is adjustable

◆ Provide gain and phase correction

◆ Provide active power and effective value offset correction

◆ Provide small signal calibration acceleration function

◆ Provide automatic verification function for configuration parameters

◆Provide SPI/UART interface

◆ Equipped with power monitoring function

◆ Single+5V power supply, typical power consumption of 15mW

◆ Built in 2.5V ± 1% reference voltage, typical temperature coefficient of 5ppm/℃

◆ Adopting SSOP24 green packaging

◆Support all digital gain, phase, and offset correction. The active power pulse is output from the PF pin, and the user-defined power pulse frequency is output from the QF pin.

◆Provide two serial interfaces SPI and UART for easy communication with external MCUs.

◆The internal power monitoring circuit can ensure the reliable operation of the chip during power on and off.