BROADCOM AR49-M25S-K12H Rotary Encoder, Optical, Absolute, Horizontal

AR49-M25S-K12H is an absolute reflective encoder module. The ST block of encoder consists of a patterned disk, a light source, and photosensitive elements to translate the mechanical motion into an electrical signal. The encoder is designed with a selection of serial communication protocols, with a dedicated electronic circuit designed for robust signal communication. The counter ASIC harvests the energy generated by the EH sensor for processing rotational count and generates counting logic to non-volatile memory, which updates and stores the count. The entire operation of energy generation, counting, and storage processing is completed with limited energy and a short duration; hence, the kit encoder is suited for both low speed and high-speed measurement. Applications include stepper, BLDC, AC servo motor control, linear actuator, robotic engineering and automation, factory and automotive automation, automated guided vehicles, specialized medical and scientific laboratory equipment.

• 25bit ST, differential RS485, 6mm shaft, M3 mounting screw, horizontal connector
• Accuracy upon calibration of ±30 arc-seconds, encoder fault and status bits with CRC
• Overall encoder outer diameter of Ø35mm and maximum height of 17.5mm
• Supply voltage range from 4.5 to 5.5V at VDD 4.5V to 5.5V, Ta = -40°C to 115°C
• Power on standby is 500ms maximum at VDD 4.5V to 5.5V, Ta = -40°C to 115°C
• Electrically permissible speed is 12000RPM maximum at VDD 4.5V to 5.5V, Ta = -40°C to 115°C
• Single-ended communication protocol: SPI 4-wire (10MHz)
• Easy assembly with digital auto-calibration process
• Built-in temperature sensor, user programmable resolution, zero reset, system alarm
• Operating temperature range from -40°C to 115°C, 25-bit optical single-turn count