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3 Channel Reflective Incremental Encoder Broadcom AEDR 8500 100 TTL Compatible for Signal Processing

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3 Channel Reflective Incremental Encoder Broadcom AEDR 8500 100 TTL Compatible for Signal Processing

Sensing Distance : 1mm

Description : 1mm SMD-8P Reflective - Logic Output RoHS

Mfr. Part # : AEDR-8500-100

Model Number : AEDR-8500-100

Package : SMD-8P

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Product Overview

The AEDR-850X is the smallest 3-channel reflective incremental encoder with digital outputs, utilizing reflective technology for motion control. Designed for operation between -20C and 85C, it is suitable for commercial and industrial applications. Its miniature size (3.95 mm (L) 3.4 mm (W) 0.9562 mm (H)) makes it ideal for space-constrained designs. The encoder offers two-channel quadrature digital outputs for direction sensing and a third channel for index digital outputs. It is TTL compatible for direct interfacing with signal processing circuitry, providing design flexibility and easy integration.

Product Attributes

Brand: Avago Technologies
Technology: Reflective Incremental Encoder
Outputs: 3-channel digital (2x Quadrature, 1x Index)
Compatibility: TTL
Supply: Single 5V
Certifications: Not specified
Origin: Not specified
Material: Not specified
Color: Not specified

Technical Specifications

Parameter	Symbol	Min.	Typ.	Max.	Units	Notes
Recommended Operating Conditions (based on limited prototype samples testing @ 11.38 Rop codewheel)
Temperature	TA	-20	25	85	C
Supply Voltage	VCC	4.5	5	5.5	V	Ripple < 100mVp-p
LED Current	ILED		15		mA	See note 1
Count Frequency	F			55	kHz	1 x Interpolation Factor
Radial Misalignment	ER		0.2		mm
Tangential Misalignment	ET		0.2		mm
Codewheel Gap	G	0.5	1.0	1.25	mm	See note 3
Electrical Characteristics (over recommended operating conditions at 25 C)
High Level Output Voltage	VOH	2.4			V	IOH = -1.5 mA
Low Level Output Voltage	VOL			0.4	V	IOH = +1.5 mA
Output current per channel	IO			-1.5	mA
Rise Time	tr			<100	ns	CL = 25pF RL = 2.7k
Fall Time	tf			<100	ns	CL = 25pF RL = 2.7k
Encoding Characteristics (Codewheel of Rop @11.38 mm)
Interpolation factor		1 X	2 X	4 X
Cycle Error	C	18	22	36	e
Pulse Width Error	P	15	20	30	e
Phase Error		9	15	18	e
State Error	S	10	15	25	e
Index Pulse Width (Gated 90)	PO	90	90	90	e
Index Pulse Width (Gated 180)	PO	180	180	180	e
Index Pulse Width (Gated 360)	PO	Not Available	360	360	e
Codewheel Characteristics
Window/bar Ratio	Ww/Wb	0.9		1.1
Window/bar Length	LW	1.80			mm (inches)	(0.071)
Specular Reflectance	Rf	60				Reflective area. See note 1.
Non reflective area			10
Line Density	LPmm	11.575		11.969	lines/mm
Line Density	LPI	294		304	lines/inch	Recommended LPI is 294
Absolute Maximum Ratings
Storage Temperature	TS	-40		85	C
Operating Temperature	TA	-20		85	C
Supply Voltage	VCC			7	V
Output Voltage	VO			VCC

2410301829_Broadcom-AEDR-8500-100_C17386063.pdf

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