AEDA-3200-TBK

AEDA-3200-TBK Datasheet

AEDA-3200-Txx Series

Part	Datasheet
AEDA-3200-TBK	AEDA-3200-TBK (pdf)

Related Parts	Information
HEDS-8940	HEDS-8940
AEDA-3200-TAJ	AEDA-3200-TAJ
AEDA-3200-TB1	AEDA-3200-TB1
AEDA-3200-TB7	AEDA-3200-TB7
AEDA-3200-TBJ	AEDA-3200-TBJ

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AEDA-3200-Txx Series Ultra Miniature, High Resolution Encoders Data Sheet The AEDA-3200-T series top mounting type are high cost effective, three-channel optical encoder modules. AEDA-3200-T series emphasize high reliability, high resolution and easy assembly, using transmissive encoder technology to sense rotary position. Outputs of the AEDA-3200 encoders are two channel quadrature outputs and a third channel gated index output. These encoder modules can be easily mounted to specific applications with the specially mechanical alignment tool. • Two channel quadrature output with index • Quick and easy assembly with alignment tool • Cost-effective • Ultra miniature size mm • Resolution options from 2500 to 7500 Cycles Per CPR , up to 30000 counts with 4X decoding • Integrated RS 422 differential line driver Outline Drawing Theory of Operation The AEDA-3200 translates rotary motion of a shaft into a three channel digital output. The AEDA-3200 series has five key parts a single light emitting diode LED light source, a photodetector IC with a set of uniquely configured photodiodes, an interpolator IC, a line driver IC and a pair of lenses. This light is used to produce internal signals A and A-, and B and B-. As part of the “push-pull” detector system, these signals are fed through comparators and line driver that are part of the signal processing circuitry to produce the final outputs for channels A. Output Waveforms Definitions Direction of Motor Rotation One Cycle C 360 electrical degrees °e . One Shaft Rotation 360 degrees, N cycles rotary motion only . When the codewheel rotates in a clockwise direction, channel A will lead channel B Figure 1 illustrates the definition of clockwise direction of codewheel rotation . When the codewheel rotates in a counter-clockwise direction, channel B will lead channel A. Phase The number of electrical degrees between the center of the high state on the channel A and the center of the high state of channel B. This value is nominally 90°e. Pulse Width P The number of the electrical degrees that an output is a high-level during one cycle, nominally 180°e or 1/2 a cycle. Pulse Width Error The deviation in electrical degrees of Figure Viewed from the PCB encoder end. the pulse width from its ideal value of 180°e. Index Pulse Width Po The number of electrical degrees that an index is high during one full shaft rotation. This value is nominally 90°e or 1/4 cycle. State Width S The number of the electrical degrees between a transition in the output of the channel B. There are 4 states per cycle, each nominally 90°e. State Width Error The deviation in electrical degrees of each state width from its ideal value of 90°e. Absolute Maximum Ratings Storage Temperature Operating Temperature Supply Voltage Output Voltage Output Current per Channel Frequency -40°C to 125°C -40°C to 125°C V to V to Vcc 20 mA 750 kHz Recommended Operating Conditions Parameter Min. Typical Max. Units Notes Temperature Supply Voltage Volts Ripple < 100 mVp-p Frequency f = RPM x CPR Maximum Frequency and RPM Maximum Frequency kHz Ordering Information AEDA-3200- T Resolution Options CPR 2,500 5,000 6,000 7,200 7,500 Counts After 4x Decoding 10,000 20,000 24,000 28,800 30,000 Alignment Tool Remark HEDS-8940 Mechanical Alignment Tool For product information and a complete list of distributors, please go to our web site: Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries. Data subject to change. Copyright 2006 Avago Technologies, Limited. All rights reserved. Obsoletes AV01-0175EN AV01-0619EN - November 1, 2006

PDF Datasheet Preview

AEDA-3200-Txx Series

Ultra Miniature, High Resolution Encoders

Data Sheet

The AEDA-3200-T series top mounting type are high cost effective, three-channel optical encoder modules.

AEDA-3200-T series emphasize high reliability, high resolution and easy assembly, using transmissive encoder technology to sense rotary position. Outputs of the AEDA-3200 encoders are two channel quadrature outputs and a third channel gated index output. These encoder modules can be easily mounted to specific applications with the specially mechanical alignment tool.
• Two channel quadrature output with index
• Quick and easy assembly with alignment tool
• Cost-effective
• Ultra miniature size mm
• Resolution options from 2500 to 7500 Cycles Per

CPR , up to 30000 counts with 4X decoding
• Integrated RS 422 differential line driver

Outline Drawing

Theory of Operation

The AEDA-3200 translates rotary motion of a shaft into a three channel digital output. The AEDA-3200 series has five key parts a single light emitting diode LED light source, a photodetector IC with a set of uniquely configured photodiodes, an interpolator IC, a line driver IC and a pair of lenses.

This light is used to produce internal signals A and A-, and B and B-.

As part of the “push-pull” detector system, these signals are fed through comparators and line driver that are part of the signal processing circuitry to produce the final outputs for channels A.

Output Waveforms

Definitions

Direction of Motor Rotation

One Cycle C 360 electrical degrees °e .

One Shaft Rotation 360 degrees, N cycles rotary motion only .

When the codewheel rotates in a clockwise direction, channel A will lead channel B Figure 1 illustrates the definition of clockwise direction of codewheel rotation . When the codewheel rotates in a counter-clockwise direction, channel B will lead channel A.

Phase The number of electrical degrees between the center of the high state on the channel A and the center of the high state of channel B. This value is nominally 90°e.

Pulse Width P The number of the electrical degrees that an output is a high-level during one cycle, nominally 180°e or 1/2 a cycle.

Pulse Width Error The deviation in electrical degrees of Figure Viewed from the PCB encoder end. the pulse width from its ideal value of 180°e.

Index Pulse Width Po The number of electrical degrees that an index is high during one full shaft rotation. This value is nominally 90°e or 1/4 cycle.

State Width S The number of the electrical degrees between a transition in the output of the channel B. There are 4 states per cycle, each nominally 90°e.

State Width Error The deviation in electrical degrees of each state width from its ideal value of 90°e.

Absolute Maximum Ratings Storage Temperature Operating Temperature Supply Voltage Output Voltage Output Current per Channel Frequency
-40°C to 125°C -40°C to 125°C V to V to Vcc 20 mA 750 kHz

Recommended Operating Conditions

Parameter

Min.

Typical

Max.

Units

Notes

Temperature

Supply Voltage

Volts

Ripple < 100 mVp-p

Frequency
f = RPM x CPR

Maximum Frequency and RPM

Maximum Frequency kHz
Ordering Information

AEDA-3200- T

Resolution Options CPR
2,500
5,000
6,000
7,200
7,500

Counts After 4x Decoding
10,000 20,000 24,000 28,800 30,000

Alignment Tool Remark

HEDS-8940

Mechanical Alignment Tool

For product information and a complete list of distributors, please go to our web site:

Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries. Data subject to change. Copyright 2006 Avago Technologies, Limited. All rights reserved. Obsoletes AV01-0175EN AV01-0619EN - November 1, 2006

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AEDA-3200-TBK Datasheet file may be downloaded here without warranties.

Datasheet ID: AEDA-3200-TBK 520022