Broadcom AR49-M Reflective Encoder Modules
Broadcom AR49-M Reflective Encoder Modules offer up to 25-bit single-turn (ST) position information and 24-bit multi-turn (MT) counts, resulting in a combined 49-bit high-resolution output. The ST block of the encoder includes a patterned disk, a light source, and photosensitive elements to translate the mechanical motion into an electrical signal. The block features a selection of serial communication protocols with a dedicated electronic circuit for robust signal communications. The multi-turn tracking uses proprietary energy harvesting (EH) technology by harvesting the magnetic energy as the patterned disk with magnet rotates. These AR49-M optical absolute encoder modules come with intelligent features such as user-programmable resolution, zero reset, system alarm, built-in temperature sensor, and more. Broadcom AR49-M Reflective Encoder Modules have a recommended temperature range of -40°C to +115°C.Features
- 24-bit energy harvesting multi-turn and 25-bit optical single-turn
- Accuracy upon calibration of ±30 arc-seconds
- Encoder fault and status bits with CRC
- 8K bits of user-accessible memory in EEPROM
- Integrated differential transceiver for SSI / BiSSC / RS485 / ESL communication protocols
- Single-ended serial protocol interface (SPI 4-wire option)
- 35mm overall encoder outer diameter and 17.5mm maximum height
- Immediate position detection on power-up
- No battery or capacitor required for position detection during power failure
- -40°C to +115°C recommended temperature range
- RoHS compliant
Applications
- AC/DC servo motor feedback
- Robotics
- Medical and laboratory equipment
- Factory automation
Encoder Calibration Flow
Published: 2024-09-11
| Updated: 2025-01-24
