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AFE Description

In the energy metering filed, AFE (Analog Front End) chips are the digital analog mixed integrated circuits, including DAC, bandgap voltage reference, power management module, clock control module, metering calculation, and energy-pulse conversion and output functions, etc.

V9260F

Single-phase AFE, low power, with UART interface

5 V power supply: 3.0 V ~ 5.5 V

Reference: 1.188 V (Typical drift 10 ppm/°C)

Typical power dissipation in full operation:1.5 mA

Highly metering accuracy:

Supporting IEC 62053-21:2003, IEC62053-22:2003 and IEC 62053-23:2003

Less than 0.1% error in active energy metering over a dynamic range of 5000:1

Less than 0.1% error in reactive energy metering over a dynamic range of 3000:1

Two independent oversampling Σ/Δ ADCs: One for voltage and one for current

Various measurements:

DC components of voltage and current signals

Total and fundamental raw/instantaneous/average current and voltage RMS

Total and fundamental raw/instantaneous/average active and reactive power

Line frequency

Supporting current detection

Supporting UART serial interface, configurable baud rate

Current input: Shunt resistor/CT

Crystal frequency: 6.5536 MHz or 3.2768 MHz

Operating temperature: -40°C ~ +85°C

Storage temperature: -40°C ~ +125°C

Package: 16-SOP

Built-in WDT

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