Ultra Miniature, High Resolution Incremental Encoders AEDA-3200-T

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Ultra Miniature, High Resolution Incremental Encoders AEDA-3200-T

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AEDA-3200-Txx Series
Ultra Miniature, High Resolution Incremental Encoders
AEDA-3200-T series (top mounting type) high performance, cost effective, three-channel optical incremental encoder modules. AEDA-3200-T series emphasize high reliability, high resolution easy assembly, using transmissive encoder technology sense rotary position. Outputs AEDA-3200 encoders channel quadrature outputs third channel gated index output. These encoder modules easily mounted customer specific applications with specially designed mechanical alignment tool.
Features
channel quadrature output with index Quick easy assembly with alignment tool Cost-effective Ultra miniature size Resolution options from 2500 7500 Cycles Revolution (CPR), 30000 counts with decoding Integrated differential line driver
Outline Drawing
Theory Operation
AEDA-3200 translates rotary motion shaft into three channel digital output. AEDA-3200 series five parts: single light emitting diode (LED) light source, photodetector with uniquely configured photodiodes, interpolator line driver pair lenses. This light used produce internal signals part "push-pull" detector system, these signals through comparators line driver that part signal processing circuitry produce final outputs channels AEDA-3200 available cycles revolution (CPR) 2500 7500. This translates maximum resolution 30000 counts after quadrature decode (4X).
Output Waveforms
Definitions
Count (N): refers cycles revolution (CPR) encoder output. Cycle (C): electrical degrees (°e). Shaft Rotation: mechanical degrees, cycles (rotary motion only). Phase number electrical degrees between center high state channel center high state channel This value nominally 90°e. Pulse Width (P): number electrical degrees that output high-level during cycle, nominally 180°e cycle. Pulse Width Error (P): deviation electrical degrees pulse width from ideal value 180°e. Index Pulse Width (Po): number electrical degrees that index high during full shaft rotation. This value nominally 90°e cycle. State Width (S): number electrical degrees between transition output channel There states cycle, each nominally 90°e. State Width Error (S): deviation electrical degrees each state width from ideal value 90°e.
Direction Motor Rotation
When codewheel rotates clockwise direction, channel will lead channel (Figure illustrates definition clockwise direction codewheel rotation). When codewheel rotates counter-clockwise direction, channel will lead channel
Figure Viewed from encoder end.
Absolute Maximum Ratings
Storage Temperature Operating Temperature Supply Voltage Output Voltage Output Current Channel Frequency -40°C 125°C -40°C 125°C -0.5
Recommended Operating Conditions
Parameter Temperature Supply Voltage Frequency Symbol Min. Typical Max. Units Volts Ripple <100 mVp-p Notes
Maximum Frequency
2500 5000 6000 7200 7500 Maximum Frequency (kHz) Maximum RPM2 12000 9000 7500 6250 6000
Note: Maximum frequency will lower limitation maximum RPM. Maximum mechanical limit 12000 RPM, operating limit dependent maximum operating frequency.
Electrical Characteristics
Electrical characteristics over recommended operating conditions. Typical values 2oC.
Parameter Supply Current High level Output Voltage level Output Voltage
Symbol
Min.
Typical
Max.
Units
Encoding Characteristics
Encoding characteristics over recommended operating conditions. Typical values 2oC.
Parameter Pulse Width Error State Width Error Phase Error
Symbol
Typical
Max.
Units
Mechanical Characteristics
(Refer page details.)
Parameter Standard Shaft Diameters Mounting Screw Size:
Dimension/Details diameter maximum M2.5 0.45 (Recommended Length
Tolerance
Units
-.002/-.007 (-.0001/-.0003) (in)
Note: Using step shaft, maximum shaft diameter
Assignments
Signal AGnd BVcc IDescription Digital Output Digital Output Ground Ground Digital Output Digital Output Input Voltage Input Voltage Digital Output Digital Output
Notes: Both must connected Vcc. Either must connected Gnd.
Mating Connector
AEDA-3200 requires (1.27 1.27 female Connector. example suggested mating connectors Samtec (www.samtec.com) part number: FFSD-05-D-x-01-N. cable used 0.635 pitch flat ribbon cable.
Alignment Considerations
mechanical alignment tool intended absorb normal installation misalignment runouts. achieve optimum performance, user should minimize misalignment. Complete instructions AEDA-3200 installation found Application Note 5080, Avago AEDA-3200-T Mechanical Mounting Installation Consideration. AEDA-3200 Mechanical Alignment tool part number HEDS-8940.
Electrical Interface
Avago recommends National Semiconductor DS26C32AM Quad Differential Line Receiver compatible line receiver. Unused should grounded noise reduction.
HEDS-890 Mechanical Alignment Tool.
Ordering Information
AEDA-3200- Resolution Options (CPR) 2,500 5,000 6,000 7,200 7,500 Counts After Decoding 10,000 20,000 24,000 28,800 30,000
Alignment Tool HEDS-8940
Remark Mechanical Alignment Tool
product information complete list distributors, please site:
www.avagotech.com
Avago, Avago Technologies, logo trademarks Avago Technologies, Limited United States other countries. Data subject change. Copyright 2006 Avago Technologies, Limited. rights reserved. Obsoletes AV01-0175EN AV01-0619EN November 2006

Ultra Miniature, High Resolution Incremental Encoders AEDA-3200-T

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