Product Overview
Surface Mount 180 LPI Reflective Analog Motion Sensing IC
Condition
Unused new old stock (NOS). Sold each. Evaluation: Visual inspection only. Function testing not performed. No markings printed on component body.
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Product Overview
Broadcom AEDR-8320-1Q2 is a reflective optical encoder designed for compact motion sensing and positioning setups. Combining an infrared emitter and dual photodiode detector IC in an 8-lead surface-mount package, it provides two-channel analog outputs at a resolution of 180 lines per inch (7.09 lines per mm). The optical system tracks linear code strips or rotary codewheels across a recommended gap of 1.0 mm to 2.5 mm.
Key Features
- Optical resolution: 180 LPI (7.09 lines/mm)
- Output format: 2-channel analog voltage outputs in quadrature
- Supply voltage: 4.5 V to 5.5 V (5.0 V nominal)
- Maximum count frequency: 30 kHz
- Package: 8-SMD module measuring 6.50 mm x 4.20 mm x 1.69 mm
- Operating temperature range: -40°C to +85°C
- Recommended gap distance: 1.0 mm to 2.5 mm
Applications
- Rotary feedback on robotics joints, servomotors, and motorized camera mounts
- Linear carriage displacement tracking on small CNC mechanisms, 3D printers, and automated inspection stages
- Repairing optical encoder subsystems in printers, plotters, and document scanners
Frequently Asked Questions
What output signal format does the AEDR-8320-1Q2 generate?
It outputs two channels of analog voltage signals corresponding to channels A and B. When paired with a matching reflective codewheel or codestrip, the outputs generate sinusoidal waveform patterns in quadrature that an external controller or interpolator can read for position and direction.
What operating voltage does this sensor require?
The device operates from a single 4.5 V to 5.5 V DC power rail, with 5.0 V nominal.
What is the recommended gap between the sensor and the codewheel?
The recommended optical gap is 1.0 mm to 2.5 mm between the top surface of the optical window and the reflective scale surface. Quantity pricing applies: the price-break table on this page shows the price per piece at every step.
At 180 lines per inch, it does not take much real estate to know exactly where a motor shaft or carriage is heading. Mount it over your codewheel, dial in the gap, and let the analog channels tell the controller the truth.
