Broadcom

AEDR-9940 Three-Channel Reflective Incremental Encoder

Broadcom's encoder features programmable interpolator digital output (198.4 LPI)

Image of Broadcom's AEDR-9940 3-Channel Reflective Incremental EncoderBroadcom's AEDR-9940 is a three-channel reflective optical encoder with selectable and programmable options for three-channel digital or analog differential A, B, and I outputs. With three channels differential analog outputs (Sine+, Sine-, Cos+, Cos-, I+, and I-), the AEDR-9940 can be interfaced directly with available external interpolators.

The AEDR-9940 digital encoder mode offers two-channel (AB) quadrature digital outputs and a third-channel digital index output. The outputs are TTL-compatible and can be interfaced with signal processing circuitries, providing easy integration and flexible design into existing systems.

The AEDR-9940 encoder is designed to operate over a temperature range of -40°C to +115°C and is suitable for commercial, industrial, and automotive end applications. The encoder houses an LED light source and photo-detecting circuitry in a single package. The small size of 4.0 mm x 4.0 mm x 0.7 mm (L x W x H) makes it suitable for a wide range of miniature commercial applications where size and space are primary concerns.

For applications that do not use the off-scale to on-scale auto calibration, option to use the AEDR-9940ER.

Features
  • Analog output options: three channels single-ended and differential analog outputs and analog or digital index outputs
  • Digital output options: three channels differential or TTL-compatible, two channel quadrature (AB) digital outputs for direction sensing, and a third channel index (I) digital output
  • Wide selection of built-in interpolators (1x to 6x, 8x, 9x, 10x, 12x, 16x, 20x, 25x, 32x, 50x, 64x, 80x, 100x, 128x, 160x, 256x, 320x, and 640x to 1,000x)
  • SPI programmable interpolator range: 1x to 1,024x
  • Surface-mount leadless package: 4.0 mm x 4.0 mm x 0.7 mm (L x W x H)
  • Operating voltage supply: 3.3 V and 5.0 V
  • Built-in LED current regulation
  • High encoding resolution: 198.4375 lines/inch (LPI), 7.8125 lines/mm (LPmm), or 0.128 mm (pitch)
  • Wide operating temperature range: -40°C to +115°C
  • Off-scale to on-scale auto calibration
  • Output status pins for calibration and error or for LED indicator options
Applications
  • Closed-loop stepper motors
  • Industrial printers
  • Robotics
  • Card readers
  • PTZ cameras
  • Portable medical equipment
  • Optometric equipment
  • Linear stages
  • Small motors and actuators

AEDR-9940 Three-Channel Reflective Incremental Encoders

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
ENCODER INCREM QUAD VERT SMD TABAEDR-9940-102ENCODER INCREM QUAD VERT SMD TAB121 - Immediate$307.83View Details
ENCODER INCREM QUAD VERT SMD TABAEDR-9940-100ENCODER INCREM QUAD VERT SMD TAB0 - Immediate$179.53View Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD 2 CW 256 400 512 720CHEDS-9940EVBEVAL BOARD 2 CW 256 400 512 720C49 - Immediate$630.28View Details
EVAL BOARD 2 CW 200 360 500 625CHEDS-9940EVB1EVAL BOARD 2 CW 200 360 500 625C52 - Immediate$630.28View Details
EVAL BOARD 2 CODE STRIPS 128UMHEDS-9940EVBLEVAL BOARD 2 CODE STRIPS 128UM50 - Immediate$630.28View Details
SPI PROG KIT 2 CODE STRIPS 128UMHEDS-9940PRGEVBLSPI PROG KIT 2 CODE STRIPS 128UM0 - Immediate$2,817.07View Details
SPI PROG KIT 2 CW 200 360 500 62HEDS-9940PRGEVB1SPI PROG KIT 2 CW 200 360 500 620 - Immediate$2,817.07View Details
Published: 2024-07-19