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CS5463 데이터시트(PDF) 5 Page - Cirrus Logic |
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CS5463 데이터시트(HTML) 5 Page - Cirrus Logic |
5 / 46 page CS5463 DS678F3 5 1. OVERVIEW The CS5463 is a CMOS monolithic power measurement device with a computation engine and an ener- gy-to-frequency pulse output. The CS5463 combines a programmable gain amplifier, two Ana- log-to-Digital Converters (ADCs), system calibration, and a computation engine on a single chip. The CS5463 is designed for power measurement applications and is optimized to interface to a current sense resistor or transformer for current measurement, and to a resistive divider or potential transformer for voltage measurement. The current channel provides programmable gains to accommodate various in- put levels from a multitude of sensing elements. With single +5 V supply on VA+/AGND, both of the CS5463’s input channels can accommodate common mode plus signal levels between (AGND - 0.25 V) and VA+. The CS5463 also is equipped with a computation engine that calculates instantaneous power, IRMS, VRMS, apparent power, active (real) power, reactive power, harmonic active power, active and reactive fundamental power, and power factor. The CS5463 additional features include line frequency, current and voltage sag detection, zero-cross detection, positive-only accumulation mode, and three programmable pulse output pins. To facilitate communication to a microprocessor, the CS5463 includes a simple three-wire serial interface which is SPI™ and Microwire™ compatible. The CS5463 provides three out- puts for energy registration. E1, E2, and E3 are designed to interface to a microprocessor. |
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