Broadcom AEDT-981x Encoders
Broadcom AEDT-981x Encoders are industrial-grade, high-temperature (-40°C to +115°C), three-channel optical incremental encoder modules. These devices build on the Broadcom legacy HEDS-9140 series and use developed opto ASIC with the built-in interpolator circuit. AEDT-981x encoders enable a wide resolution range from 2000 to 5000 counts per revolution with the rotary code wheel of 11mm optical radius. This offers a high-resolution solution that is also compact.
AEDT-981x Encoders current consumption can be significantly lowered (Typ. Icc: 20mA) while maintaining optimal encoder performance across spatial corners with the opto-ASIC's built-in automatic LED brightness regulation technique. This LED brightness control feature also enables optimal LED current control with significantly prolonged LED life. AEDT-981x offers an excellent spatial play of ∅ 0.40mm and code wheel gap range of ±150um with a state-of-the-art optomechanical design. This allows great flexibility and ease of installation.
Features
- -40°C to +115°C operating temperature range
- Two-channel quadrature output with index pulse
- Single-ended output with ±5mA output sink/source current per channel
- Suitable for industrial applications
- Resolution up to 5000 counts per revolution
- Low power consumption (Typical Icc: 20mA)
- No signal adjustment required
- Pin-compatible to legacy HEDS-9xxx Series
- Spatial play tolerance of ∅ 0.40mm
- Allows motor shaft axial play of ±0.15mm
- ESD Immunity HBM 4kV (JESD22-A114D)
Applications
- High-temperature motion control detection
- Commercial
- Industrial
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Published: 2015-07-22
| Updated: 2022-03-11