AEDS-96E0-R10

AEDS-96E0-R10 Datasheet

AEDS-96EX Series Small Optical Encoder Modules 200 LPI Analog Voltage Output

Part	Datasheet
AEDS-96E0-R10	AEDS-96E0-R10 (pdf)

Related Parts	Information
AEDS-96E1-R10	AEDS-96E1-R10

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AEDS-96EX Series Small Optical Encoder Modules 200 LPI Analog Voltage Output Data Sheet The AEDS-96EX is a very small high performance, low cost optical incremental encoder module. When operated in conjunction with a codewheel/codestrip, this module detects rotary/linear position .The encoder module consists of a lensed Light Emitting Diode LED source and a detector IC enclosed in small C-Shaped plastic package. Due to highly collimated light source and a unique photodetector array, the module is extremely tolerant to mounting misalignment. The two channel analog outputs and 3.3V supply input are accessed through four leads located on 2.00mm centers for the detector and two leads located on 2.54mm center for the emitter. AEDS-96EX is designed for use with an appropriate optical radius codewheel. Please contact factory for more information. • RoHS Compliant • Small Size • Low Cost • Built-in guide bumps for codewheel and codestrip • Low Package Height • Insensitive to Radial, Tangential and Axial Play • 0°C to +60°C recommended operating temperature • Two Channel Analog Output • Single 3.3V Supply • Wave solderable Specifications • 200 LPI • 3.3V Supply* • 1.52V LED forward voltage IF = 16mA * * Typical Conditions • Printers • Copiers/Fax • Plotters • Office Automation Equipments Theory of Operation The AEDS-96EX is a C-shaped emitter/detector module. Coupled with a codewheel/codestrip, it translates rotary motion into a two-channel analog output. The module contains a single Light Emitting Diode LED as its light source. The light is collimated into a parallel beam by means of a single lens located directly over the LED. Opposite the emitter is the integrated detector circuit. This IC consists of multiple sets of photodetectors and the signal processing circuitry necessary to produce the analog waveforms. The codewheel/codestrip moves between the emitter and detector, causing the light beam to be interrupted by the pattern of spaces and bars on the codewheel/ codestrip. The photodiodes, which detect these interruptions, are arranged in a pattern that corresponds to the radius and count density of the codewheel/codestrip. These detectors are also spaced such that a light period on one pair of detectors corresponds to a dark period on the adjacent pairs of detectors. The photodiode outputs are fed through the signal processing circuitry, which produce the final outputs for Channel A and Channel B. Due to this integrated phasing technique, the analog output of Channel A is in quadrature with Channel B 90 degrees out of phase . AEDS-96EX Series Block Diagram Definitions 1 shaft Rotation = 360 degrees = N cycles 1 cycle c = 360 electrical degree, equivalent to 1 bar and window pair. Direction of Rotation When the codewheel rotates in the counter-clockwise direction as viewed from the encoder end of the motor , channel A will lead channel B. If the codewheel rotates in the clockwise direction, channel B will lead channel A. Line Density The number of window and bar pair per unit length, express in either lines per inch LPI or lines per mm LPmm Optical Radius Rop The distance from the codewheel’s center of rotation to the optical center O.C of the encoder module. Gap G The distance from surface of the encoder to the surface of codewheel or codestrip Mounting Position RM Distance from Motor Shaft center of rotation to center of Alignment Tab receiving hole. Radial and Tangential Misalignment Error ER and Er For rotary motion mechanical displacement in the radial and tangential directions relative to the nominal alignment Angular Misalignment Error EA Angular misalignment of the sensor in relation to then tangential direction. This applies for both rotary and linear motion.of electrical degrees that an output is high during one cycle, nominally 180°e or 1/2 a cycle. 5 VLED 6 GND LENS LED PHOTODIODES PULLUP RESISTOR K x 2 COMPARATORS A+ SIGNAL A PROCESSING CIRCUITRY B + 2 VCC 1 CHANNEL A 3 CHANNEL B 4 GND EMITTER SECTION CODE WHEEL DETECTOR SECTION Absolute Maximum Ratings Subjecting the part to stresses beyond those listed under this section may cause permanent damage to the device. These are stress ratings only and do not imply that the device functions beyond these ratings. Exposure to the extremes of these conditions for extended periods may affect device reliability.

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AEDS-96EX Series Small Optical Encoder Modules 200 LPI Analog Voltage Output

Data Sheet

The AEDS-96EX is a very small high performance, low cost optical incremental encoder module. When operated in conjunction with a codewheel/codestrip, this module detects rotary/linear position .The encoder module consists of a lensed Light Emitting Diode LED source and a detector IC enclosed in small C-Shaped plastic package. Due to highly collimated light source and a unique photodetector array, the module is extremely tolerant to mounting misalignment.

The two channel analog outputs and 3.3V supply input are accessed through four leads located on 2.00mm centers for the detector and two leads located on 2.54mm center for the emitter.

AEDS-96EX is designed for use with an appropriate optical radius codewheel. Please contact factory for more information.
• RoHS Compliant
• Small Size
• Low Cost
• Built-in guide bumps for codewheel and codestrip
• Low Package Height
• Insensitive to Radial, Tangential and Axial Play
• 0°C to +60°C recommended operating
temperature
• Two Channel Analog Output
• Single 3.3V Supply
• Wave solderable

Specifications
• 200 LPI
• 3.3V Supply*
• 1.52V LED forward voltage IF = 16mA *
* Typical Conditions
• Printers
• Copiers/Fax
• Plotters
• Office Automation Equipments

Theory of Operation

The AEDS-96EX is a C-shaped emitter/detector module. Coupled with a codewheel/codestrip, it translates rotary motion into a two-channel analog output. The module contains a single Light Emitting Diode LED as its light source. The light is collimated into a parallel beam by means of a single lens located directly over the LED. Opposite the emitter is the integrated detector circuit. This IC consists of multiple sets of photodetectors and the signal processing circuitry necessary to produce the analog waveforms. The codewheel/codestrip moves between the emitter and detector, causing the light beam to be interrupted by the pattern of spaces and bars on the codewheel/ codestrip. The photodiodes, which detect these interruptions, are arranged in a pattern that corresponds to the radius and count density of the codewheel/codestrip. These detectors are also spaced such that a light period on one pair of detectors corresponds to a dark period on the adjacent pairs of detectors. The photodiode outputs are fed through the signal processing circuitry, which produce the final outputs for Channel A and Channel B. Due to this integrated phasing technique, the analog output of Channel A is in quadrature with Channel B 90 degrees out of phase .

AEDS-96EX Series Block Diagram

Definitions
1 shaft Rotation = 360 degrees = N cycles
1 cycle c = 360 electrical degree, equivalent to 1 bar and window pair.

Direction of Rotation When the codewheel rotates in the counter-clockwise direction as viewed from the encoder end of the motor , channel A will lead channel B. If the codewheel rotates in the clockwise direction, channel B will lead channel A.

Line Density The number of window and bar pair per unit length, express in either lines per inch LPI or lines per mm LPmm

Optical Radius Rop The distance from the codewheel’s center of rotation to the optical center O.C of the encoder module.

Gap G The distance from surface of the encoder to the surface of codewheel or codestrip

Mounting Position RM Distance from Motor Shaft center of rotation to center of Alignment Tab receiving hole.

Radial and Tangential Misalignment Error ER and Er For rotary motion mechanical displacement in the radial and tangential directions relative to the nominal alignment

Angular Misalignment Error EA Angular misalignment of the sensor in relation to then tangential direction. This applies for both rotary and linear motion.of electrical degrees that an output is high during one cycle, nominally 180°e or 1/2 a cycle.
5 VLED
6 GND

LENS LED

PHOTODIODES

PULLUP RESISTOR

K x 2 COMPARATORS A+

SIGNAL A PROCESSING

CIRCUITRY B +
2 VCC
1 CHANNEL A
3 CHANNEL B
4 GND

EMITTER SECTION

CODE WHEEL

DETECTOR SECTION

Absolute Maximum Ratings

Subjecting the part to stresses beyond those listed under this section may cause permanent damage to the device. These are stress ratings only and do not imply that the device functions beyond these ratings. Exposure to the extremes of these conditions for extended periods may affect device reliability.

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 AEDS-96E0-R10 Datasheet file may be downloaded here without warranties.

Datasheet ID: AEDS-96E0-R10 520029