CS5480-INZR Cirrus Logic, Inc., CS5480-INZR Datasheet

CS5480-INZR

Manufacturer Part Number

CS5480-INZR

Description

CS5480-INZR

Manufacturer

Cirrus Logic, Inc.

Datasheet

1.CS5480-INZ.pdf (70 pages)

Specifications of CS5480-INZR

Pack_quantity

6000

Comm_code

85423990

Lead_time

Current page: 1 of 70
Download datasheet (886Kb)

Features

•

ORDERING INFORMATION

Cirrus Logic, Inc.

http://www.cirrus.com

Superior Analog Performance with Ultra-low Noise Level &

Energy Measurement Accuracy of 0.1% over 4000:1

Current RMS Measurement Accuracy of 0.1% over 1000:1

3 Independent 24-bit, 4

3 Configurable Digital Outputs for Energy Pulses,

Supports Shunt Resistor, CT, & Rogowski Coil Current

On-chip Measurements & Calculations:

Overcurrent, Voltage Sag, and Voltage Swell Detection

Ultra-fast On-chip Digital Calibration

Internal Register Protection via Checksum and Write

UART/SPI™ Serial Interface

On-chip Temperature Sensor

On-chip Voltage Reference (25ppm / °C Typ.)

Single 3.3V Power Supply

Ultra-fine Phase Compensation

Low Power Consumption: <13mW

Power Supply Configurations

4mm x 4mm, 24-pin QFN Package

High SNR

Dynamic Range

for Voltage and Current Measurements

Zero-crossing, or Energy Direction

Sensors

- Active, Reactive, and Apparent Power

- RMS Voltage and Current

- Power Factor and Line Frequency

- Instantaneous Voltage, Current, and Power

Protection

GNDA = GNDD = 0V, VDDA = +3.3V

See

Page

69.

Description

Three Channel Energy Measurement IC

VREF+

VREF-

IIN1+

IIN2+

IIN1-

IIN2-

VIN+

VIN-

-order, Delta-Sigma Modulators

Reference

Voltage

PGA

VDDA

10x

GNDA

4th Order 

Temperature

Modulator

Sensor

System

Clock

Digital

Filter

XIN

RESET

Generator

Clock

XOUT

Description

The CS5480 is a high-accuracy, three-channel, energy mea-

surement analog front end.

The CS5480 incorporates independent, 4

analog-to-digital converters for every channel, reference cir-

cuitry, and the proven EXL signal processing core to provide

active, reactive, and apparent energy measurement. In addi-

tion, RMS and power factor calculations are available.

Calculations are output via configurable energy pulse, or direct

UART/SPI™ serial access to on-chip registers.

Instantaneous current, voltage, and power measurements are

also available over the serial port. Multiple serial options are

offered to allow customer flexibility. The SPI provides higher

speed, and the 2-wire UART minimizes the cost of isolation

where required.

Three configurable digital outputs provide energy pulses, zero-

crossing, energy direction, and interrupt functions. Interrupts

can be generated for a variety of conditions including voltage

sag or swell, overcurrent, and more. On-chip register integrity

is assured via checksum and write protection. The CS5480 is

designed to interface to a variety of voltage and current sen-

sors including shunt resistors, current transformers, and

Rogowski coils.

On-chip functionality makes digital calibration simple and ul-

tra-fast, minimizing the time required at the end of the

customer production line. Performance across temperature is

ensured with an on-chip voltage reference with very low drift.

A single 3.3V power supply is required, and power consump-

tion is very low at <13mW. To minimize space requirements,

the CS5480 is offered in a low-cost, 4mm x 4mm 24-pin QFN

package.

Option

HPF

Calculation

CS5480

Conversion

UART/SPI

Interface

Energy

Serial

Pulse

VDDD

GNDD

CS5480

SSEL

RX / SDI

TX / SDO

SCLK

DO2

DO3

DO1

MODE

order, Delta-Sigma

DS980F2

JUN’12

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