CDB5466U Cirrus Logic Inc, CDB5466U Datasheet

BOARD EVAL & SOFTWARE CS5466 ADC

CDB5466U

Manufacturer Part Number
CDB5466U
Description
BOARD EVAL & SOFTWARE CS5466 ADC
Manufacturer
Cirrus Logic Inc
Type
A/Dr
Datasheets

Specifications of CDB5466U

Main Purpose
Power Management, Energy/Power Meter
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
CS5466
Primary Attributes
1-Phase, Energy-to-Frequency Output
Secondary Attributes
Graphical User Interface, USB Interface
Product
Data Conversion Development Tools
Maximum Clock Frequency
4 MHz
Interface Type
USB
Supply Voltage (max)
5 V
Supply Voltage (min)
3.3 V
For Use With/related Products
CS5466
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
598-1011
Features
http://www.cirrus.com
Single-chip Power Measurement Solution
Energy Data Linearity:
On-chip functions: Measures Power and
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
On-chip Energy Direction Indicator
Ground-referenced Input Signals with Single
High-frequency Output for Calibration
On-chip, Power-on Reset (POR)
Power Supply Configurations:
±0.1% of Reading, over 1000:1 Dynamic Range
Mechanical Counter
Supply
Performs Energy-to-pulse Conversions
I
VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to 5 V
Low-cost Power/Energy IC with Pulse Output
VREFOUT
VREFIN
VIN+
VIN-
IIN+
IIN-
PGA
x10
VA+
x1
2nd Order ∆Σ
2.5V On-Chip
4th Order ∆Σ
Modulator
Modulator
Reference
Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved)
Digital
Digital
Filter
Filter
RESET
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
Description
page
Option
Option
HPF
HPF
16.
Conversion
Energy-to-
Frequency
Generator
Config
Clock
VD+
HPF
FOUT
E1
E2
NEG
FREQ0
FREQ1
FREQ2
IGAIN0
IGAIN1
CPUCLK
XOUT
XIN
CS5466
DS659F1
AUG ‘05

Related parts for CDB5466U

CDB5466U Summary of contents

Page 1

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 ...

Page 2

TABLE OF CONTENTS 1. OVERVIEW ............................................................................................................................... 3 2. PIN DESCRIPTION ................................................................................................................... 4 3. CHARACTERISTICS & SPECIFICATIONS ............................................................................. 5 RECOMMENDED OPERATING CONDITIONS ....................................................................... 5 ANALOG CHARACTERISTICS ................................................................................................ 5 VOLTAGE REFERENCE ......................................................................................................... 6 DIGITAL CHARACTERISTICS ................................................................................................. 7 SWITCHING CHARACTERISTICS .......................................................................................... 8 ABSOLUTE ...

Page 3

OVERVIEW The CS5466 is a CMOS monolithic power measurement device with an energy computation engine. The CS5466 combines a programmable gain amplifier, two ∆Σ ADCs, and energy-to-frequency conversion circuitry on a single chip. The CS5466 is designed for energy ...

Page 4

PIN DESCRIPTION Crystal Out CPU Clock Output Positive Power Supply Digital Ground Gain Select 0 Negative Energy Indicator Gain Select 1 High-pass Filter Enable Differential Voltage Input Differential Voltage Input Voltage Reference Output Voltage Reference Input Clock Generator Crystal ...

Page 5

CHARACTERISTICS & SPECIFICATIONS RECOMMENDED OPERATING CONDITIONS Parameter Positive Digital Power Supply Positive Analog Power Supply Voltage Reference Specified Temperature Range ANALOG CHARACTERISTICS • Min / Max characteristics and specifications are guaranteed over all operating ponditions. • Typical characteristics and ...

Page 6

ANALOG CHARACTERISTICS Parameter Power Supplies Power Supply Currents I (VA VD Power Consumption (Note 3) (VA VD+ = 3.3 V) Power Supply Rejection Ratio (Note 4) Voltage Channel (Gain = ...

Page 7

DIGITAL CHARACTERISTICS • Min / Max characteristics and specifications are guaranteed over all operating conditions. • Typical characteristics and specifications are measured at nominal supply voltages and °C. • VA ±5% VD+ = 3.3 ...

Page 8

SWITCHING CHARACTERISTICS • Min / Max characteristics and specifications are guaranteed over all operating conditions. • Typical characteristics and specifications are measured at nominal supply voltages and °C. • VA ±5% VD+ = 3.3 ...

Page 9

ABSOLUTE MAXIMUM RATINGS WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes Parameter DC Power Supplies Input Current, Any Pin Except Supplies Output Current, Any Pin ...

Page 10

Order IIN± PGA ∆Σ Modulator Current Channel 2nd Order VIN± 10x ∆Σ Modulator Voltage Channel 4. THEORY OF OPERATION The CS5466 is a dual-channel analog-to-digital convert- er (ADC) followed by a computation engine that per- forms an energy-to-pulse conversion. ...

Page 11

FUNCTIONAL DESCRIPTION 5.1 Analog Inputs The CS5466 is equipped with two fully differential input channels. The inputs VIN± and IIN± are designated as the voltage and current channel inputs, respectively. The full-scale differential input voltage for the current and ...

Page 12

Frequency Select FREQ2 FREQ1 FREQ0 Notes pure sinusoidal input with zero phase shift is applied to the voltage and current channel. 2 ...

Page 13

E1 and E2 Frequency Calculation The pulse output frequency of E1 and E2 is directly pro- portional to the active power calculated from the input signals. To calculate the output frequency on E1 and E2, use the following transfer ...

Page 14

Basic Application Circuit Figure 4 shows the CS5466 configured to measure power in a single-phase, 2-wire system while operating in a single-supply configuration. In this diagram, a shunt resistor is used to sense the line current and a voltage ...

Page 15

PACKAGE DIMENSIONS 24L SSOP PACKAGE DRAWING TOP VIEW INCHES DIM MIN 0.002 A2 0.064 b 0.009 D 0.311 E 0.291 E1 0.197 e 0.022 L 0.025 ∝ 0° Notes: 1. “D” ...

Page 16

ORDERING INFORMATION Model CS5466-IS CS5466-ISZ (lead free) 8. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION Model Number CS5466-IS CS5466-ISZ (lead free) * MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020. 9. REVISION HISTORY Revision Date PP1 SEP 2004 PP2 OCT ...

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