CS5466 datasheet(1/16 Pages) CIRRUS

номер детали	CS5466

подробное описание детали	Low-cost Power/Energy IC with Pulse Output

PDF	16 Pages

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производитель	CIRRUS [Cirrus Logic]

домашняя страница	http://www.cirrus.com

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CS5466

Low-cost Power/Energy IC with Pulse Output

Features

Single-chip Power Measurement Solution

Energy Data Linearity:

±0.1% of Reading, over 1000:1 Dynamic Range

On-chip functions: Measures Power and

Performs Energy-to-pulse Conversions

Meets Accuracy Spec for IEC, ANSI, & JIS.

High-pass Filter Option

Four Input Ranges for Current Channel

On-chip, 2.5 V Reference

Pulse Outputs for Stepper Motor or

Mechanical Counter

On-chip Energy Direction Indicator

Ground-referenced Input Signals with Single

Supply

High-frequency Output for Calibration

On-chip, Power-on Reset (POR)

Power Supply Configurations:

VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to 5 V

Description

The CS5466 is a low-cost power meter solution incorpo-

rating dual delta-sigma (

∆Σ) analog-to-digital converters

(ADCs), an energy-to-frequency converter, and energy

pulse outputs on a single chip. The CS5466 is designed

to accurately measure and calculate energy for single

phase, 2- or 3-wire power metering applications with

minimal external components.

The low-frequency pulse outputs, E1 and E2, provide

pulses at a frequency which is proprtional to the active

power and can be used to drive a stepper motor or a me-

chanical counter. Energy direction output, NEG,

indicates when pulse outputs E1 and E2 represent neg-

ative active power. The high-frequency pulse output

FOUT is designed to assist in system calibration.

The CS5466 has configuration pins which allow for direct

configuration of pulse output frequency, current channel

input range, and high-pass filter enable option.

The CS5466 also has a power-on reset function which

holds the part in reset until the supply reaches an oper-

able level.

ORDERING INFORMATION

See page 16.

I

IIN+

IIN-

IGAIN0

IGAIN1

VIN+

VIN-

VREFOUT

VA+

RESET

VD+

FOUT

E1

E2

CPUCLK

XOUT

XIN

FREQ0

FREQ1

FREQ2

PGA

x10

NEG

4th Order

∆Σ

Modulator

2nd Order

∆Σ

Modulator

HPF

Option

Config

Clock

Generator

Digital

Filter

Digital

Filter

2.5V On-Chip

Reference

VREFIN

x1

HPF

Option

HPF

Energy-to-

Frequency

Conversion

AUG ‘05

DS659F1

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