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CS5462 Datasheet, PDF (1/18 Pages) Cirrus Logic – LOW COST POWER ENERGY IC WITH PULSE OUTPUT | |||
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CS5462
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 Energy and
Performs Energy-to-Pulse Conversions
Meets Accuracy Spec for IEC 687/1036
On-Chip System Calibration Option
High Pass Filter Option for Both I and V
2 Available Current Input Ranges
On-Chip 2.5 V Reference (25 ppm/°C typ)
Pulse Outputs for Stepper Motor or
Mechanical Counter
On-Chip Energy Direction Indicator
Ground Reference Input Signals with Single
Supply
High Frequency Output for Calibration
On-Chip Power-on Reset
Power Supply Configurations:
VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to 5 V
I
Description
The CS5462 is a low cost power meter solution combin-
ing two âΣ Analog-to-Digital Converters (ADC)âs, an
energy-to-frequency converter, and energy pulse out-
puts on a single chip. It is designed to accurately
measure and calculate energy for single phase 2- or 3-
wire power metering applications with minimal external
components.
Low frequency energy outputs, E1 and E2, supply aver-
age real power and can be used to drive a stepper motor
or a mechanical counter; the high frequency energy out-
put FOUT can be used for calibration; and NEG indicates
negative power.
The CS5462 has configuration pins which allow for direct
configuration of pulse output format, pulse output fre-
quency, current channel input range, high pass filter
option, and on-chip calibration.
The CS5462 also has a power-on reset function which
holds the part in reset until the supply reaches an oper-
able level.
ORDERING INFORMATION
CS5462-IS -40° to 85° C 24-pin SSOP
IIN+
IIN-
VIN+
VIN-
VREFIN
VREFOUT
VA+
RESET
VD+ / P7
PGA
x10,x50
4th Order âΣ
Modulator
x10
2nd Order âΣ
Modulator
x1
Digital
Filter
Digital
Filter
High Pass
Filter
Energy to
Pulse Rate
Converter
Energy
Direction
Calibration
High Pass
Filter
Clock
Generator
XIN
XOUT
CPUCLK
FOUT / P6
E1 / P5
E2 / P4
P3
NEG/P2
Voltage
Reference
Configuration Inputs: On-Chip Calibration,
Pulse Output Mode / Output Frequency,
HPF Option, and
Current Channel Input Range
Program Select
Outputs
for
Configuration
AGND
IGAIN FREQ CAL1 CAL0
DGND / P1
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
http://www.cirrus.com
Copyright  Cirrus Logic, Inc. 2003
(All Rights Reserved)
OCT 03
DS547PP1
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