Broadcom AEAT-9922
10-Bit to 18-Bit programmable angular magnetic encoder
The AEAT-9922 is an angular magnetic rotary sensor that provides accurate angular measurement over a full 360° of rotation. It is a sophisticated system that uses integrated Hall sensor elements with complex analog and digital signal processing within a single device. A simple two-pole magnet generates the necessary magnetic field by rotating it perpendicularly. Wide magnetic field sensor configurations allow on-axis (end of shaft) or off-axis (side of the shaft) modes. The AEAT-9922 is a versatile solution that supports a broad range of applications with its robust architecture to measure and deliver both absolute and incremental signals.
Key features
- 5 V and 3.3 V operation
- Selectable 10 bits up to 18 bits of absolute resolution
- Flexible Incremental ABI resolution ranging from 1 to 10,000 CPR
- Commutation angle output UVW 1 to 32 pole-pair
Additional features
- PWM output modes with Cyclic Redundancy Check (CRC)
- User-programmable zero position, direction, index width, and index position
- Programmable hysteresis
- Absolute output over 2-wire SSI, 3-wire SSI, and 4-wire SPI
- Each output available in a different mode
- INL angle correction for high accuracy
- Compact QFN-24 leads 4 x 4 mm package
- Wide operating temperature range:
- RoHS compliant
Applications
- Brushless DC motor and stepper motor
- Resolver and potentiometer replacement
- Industrial automation and robotics
- Industrial sewing machine and textiles equipment
Available tools
For an easy evaluation of the encoder IC, the HEDS-9922PRGEVB evaluation kit set (inclusive of the SPI programming kit, the pre-assembled AEAT-9922 evaluation boards, and the on-axis magnets) is available for orders through normal Broadcom Sales Channels.
- HEDS-9922PRGEVB: AEAT-9922 Programming Kit & Evaluation Set
- HEDS-9922EVB: AEAT-9922 Evaluation Board
ebv content library/npi/2021/broadcom-aeat-9922
Broadcom AEAT-9922 10-Bit to 18-Bit Magnetic Encoder | EBV Elektronik
