AEAT-9988M中文资料High Accuracy Dual-Track Magnetic Encoder with Battery Backup Multi-turn Counter数据手册Broadcom规格书

描述 Description

The Broadcom® AEAT-9988M is an angular magnetic rotary sensor that provides accurate angular measurement over a full 360 degrees of rotation. It is a versatile solution capable of supporting a broad range of applications with its robust architecture to measure and deliver both absolute and incremental signals. This sophisticated system uses integrated Hall sensor elements with complex analog and digital signal processing within a single device. A dual-track magnet generates the necessary magnetic fields by rotating perpendicularly. A wide range of selection is available on the magnet ring sizes, from 20-mm to 50-mm inner diameter. The absolute angle measurement provides an instant indication of the magnet's angular position with a selectable and reprogrammable resolution from 16 bits to 23 bits. When selected, its absolute positioning data is then represented in its digital form to be assessed through a standard SSI, SPI, BiSS-C or RS-485 communication protocol.The AEAT-9988M also has a built-in, multi-turn counter battery backup power-off mode operation. The multi-turn resolution is programmable from 10 bits to 16 bits. Users can choose to receive the absolute angle position in PWM-encoded output signals. Incremental positions are transmitted on ABI and UVW signals with wide user-configurable resolutions from 1 CPR to 65,536 CPR of ABI signals and pole pairs from 1 to 64 pole pairs (2 to 128 poles) for UVW commutation signals.For easy evaluation of the encoder IC, the HEDS-9988PRGEVB evaluation kit (inclusive of the SSI/SPI/BiSS-C/RS-485 programming kit, the pre-assembled AEAT-9988MB evaluation boards, and the ring magnet with hub) is available for orders through normal Broadcom sales channels.

特性 Features

• 5V operating voltage
• Selectable 16 bits up to 23 bits of absolute resolution
• Flexible incremental ABI resolution ranging from 1 CPR to 65,536 CPR
• Commutation angle output UVW 1 pp to 32 pp
• PWM output modes
• User-programmable zero position, direction, index width and index position
• Programmable hysteresis
• Absolute output over 2-wire SSI, 3-wire SSI, 4-wire SPI, RS-485, or BiSS-C
• Optional 56-bit memory lock function
• Compact DFN-30 leads (8.2 mm × 5 mm) package
• INL angle correction for high accuracy
• Battery-backup multi turn counter
• Operating temperature from -40 ℃ to 125
• RoHS compliant

应用 Application

Three-phase commutation for a brushless DC motor
Resolver and potentiometer replacement
Industrial automation and robotics
Industrial sewing machine and textiles equipment