Features Very small Package Height. Description This very small, packa

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Agilent AEDS-964X Series Encoder Ultra Small Optical Encoder Modules 150, 360LPI Digital Output
Features Very small Package Height. Description This very small, package height high performance incremental encoder module. When operated conjunction with either codewheel codestrip, this module detects rotary linear position. encoder consists lensed source detector enclosed small C-shaped plastic package. highly collimated light source unique photodetector array, module extremely tolerant mounting misalignment. channel digital outputs 3.3V 5.0V supply input accessed through four solder plated leads located 2.00mm (0.1 inch) centers. supply input LED, rated 16mA, accessed through leads located 2.54mm designed with 11.00mm/23.36mm optical radius codewheel linear codestrip. Other options available. Please contact factory more information. Applications AEDS-964X provides sophisticated motion detection, making closed-loop control very cost effective. Typical applications include printers, plotter, copiers office automation equipment. Built-in codewheel codestrip guide bumps. Wide Resolution Range Linear Rotary Application. Signal Adjustment Required Insensitive Radial Axial Play Operating Temp. Channel Quadrature Output TTL, 3.3V 5.0V CMOS Compatible Wave solderable Lead-Free Package
This preliminary data provided assist evaluation product(s) currently under development. Until Agilent Technologies releases this product general sales, Agilent Technologies reserves right alter prices, specifications, features, capabilities, functions, release dates, remove availability product(s) anytime.
Theory Operation AEDS-964X C-shaped emitter/detector module. Coupled with codewheel, translates rotary motion into two-channel digital output, coupled with codestrip, translates linear motion into digital outputs. seen Figure module contains single Light Emitting Diode (LED) light source. light collimated into parallel beam means single lens located directly over LED. Opposite emitter integrated detector circuits. This consists multiple sets photodetectors signal processing circuitry necessary produce digital waveforms. codewheel/codestrip moves between emitter detector, causing light beam interrupted pattern spaces bars codewheel/codestrip. photodiodes which detect these interruptions arranged pattern that corresponds radius count density codewheel/codestrip. These detectors also spaced such that light period pair detectors corresponds dark period adjacent pairs detectors. photodiode outputs through signal processing circuitry. comparators receive these signals produce final outputs Channels this integrated phasing technique output channel quadrature with Channel degrees phase).
Definitions Note: Refer Figure Count (N): number window pairs counts resolution (CPR) codewheel. Cycle (C): electrical degrees (°e), window pair. Shaft Rotation: mechanical degrees, cycles. Each state width from ideal value 90°e. Pulse Width(P): number electrical degree that output high during cycle. This value nominally 180° cycle. Pulse Width Error (DP): deviation, electrical degrees, pulse width from ideal value 180° State Width(S): number electrical degrees between transition output channel neighboring transition output channel There states cycle, each nominally State Width Error (P): deviation, electrical degrees each state width from ideal value 90°. Phase() number electrical degrees between center high state channel center high state channel Phase Error( deviation phase from ideal value Direction Rotation: When codewheel rotates counter-clockwise direction viewed from encoder motor), channel will lead channel codewheel rotates clockwise direction, channel will lead channel Optical Radisu(Rop) distance from codewheel's center rotation optical center (O.C) encoder modules. Angular Misalignment Error (EA) Angular misalignment sensor relation tangential direction. This applies both rotary linear motion. Mounting Position(RM): Distance from Motor Shaft center rotation center Alignment receiving hole.
AEDS-964X Series Block Diagram
Figure
Figure
Absolute Maximum Ratings Subjecting part stresses beyond those listed under this section cause permanent damage device. These stress ratings only imply that devices function beyond these ratings. Exposure extremes these conditions extended periods affect device reliability.
Parameter Storage Temperature Operating Temperature Supply Voltage (Detector) Output Voltage Output current channel Soldering Temperature Forward Reverse Voltage Symbol TSOL ILED Min. -0.5 -0.5 -1.5 Max. Units Volts 1.8V 100uA Notes
Recommended Operating Conditions
Parameter Temperature Supply Voltage (Detector) Load Capacitance Pullup Resistor Count Frequency Angular Misalignment Mounting Position Forward Current (LED) 5.0V Forward Current (LED) Symbol Rpull ILED -3.0 (Rop-0.095") none +3.0 Min. Typ. Max. Units Volts Deg. (inch) Recommended pullup. Velocity (rpm) N/60 Mounting consideration Refer mounting consideration Recommended (±10%) series resistor between 5.0V supply Vled. Recommended (±10%) series resistor between 3.3V supply Vled. Ripple 100mVpp Notes
ILED
Electrical Characteristics Electrical Characteristics over Recommend Operating Range, typical 25°C
Parameter Supply Current (Detector) High Level Output Voltage Level Output Voltage Rise Time Fall Time Forward Voltage
Symbol
Min.
Typ.@ 3.3V
Typ.@ 5.0V
Max.
Units
Notes Typ. -1.0 Typ. -0.7 Typ. 10mA Typ. 3.3V
1.52
1.52 1.54
Note: Refer Figure output waveform
Encoding Characteristics Encoding Characteristics over Recommended Operating Conditions Mounting Conditions. These characteristics include codewheel/codestrip contribution. typical values average over full rotation codewheel Nominal Mouting Position Typical Operating Conditions. codestrip, Typical Values obtained zero angular displacement Typical Operating Conditions. Maximums worst case values predicted over full range Recommended Mounting Tolerances Operating Conditions, with consideration population shift.
Parameter Pulse Width Error Logic State Width Error Phase Error
Symbol
Typical
Maximum
Units
Recommended Wave Solder Profile
Pb-free Wave Soldering Profile Std-Profile
260C
Y-Axis
120C/120 X-Axis
Parameter Solder Temperature Preheat Zone Temperature Time Solder Zone (PCB Top) Solder Zone (Encoder Lead) Min. Max. Nominal values Units
Flow
Cool Down
Note: Nominal values evaluated profiles optimum performance. Min/Max critical limits ensure encoders good condition.
Mounting Consideration
Note: These dimension includes shaft play codewheel warp. dimensions mounting module codewheel/codestrip should measured with respect mounting post shown above.
AEDS-964X-P10
Error Radial Tangential Angular
Rop=11.00mm 0.15 0.13 0.13
Unit Deg.
Notes Recommend closer detector side (upper side), order give enough margin encoder operation.
AEDS-964X-210 AEDS-964X-110
Error
Rop=23.36mm Radial Tangential Angular 0.15 0.26 0.28
Unit deg.
Notes Recommend closer detector side (upper side), order keep enough margin encoder operation.
Package Dimension AEDS-9641 (Bent Lead)
AEDS-9640 (Straight Lead)
Ordering Information
Bracket Option
AEDS-964
Option
Lead Configuration Straight Leads Bent Leads
Resolution Option
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product information complete list distributors, please site. technical assistance call: Americas/Canada: (800) 235-0312 (916) 788-6763 Europe: 6441 92460 China: 10800 0017 Hong Kong: (+65) 6756 2394 India, Australia, Zealand: (+65) 6755 1939 Japan: (+81 0120-61-1280(Domestic Only) Korea: (+65) 6755 1989 Singapore, Malaysia, Vietnam, Thailand, Philippines, Indonesia: (+65) 6755 2044 Taiwan: (+65) 6755 1843 Data subject change. Copyright 2005 Agilent Technologies, Inc. September 2005 5989-4012EN

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