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Broadcom AEAT-9955 Programmable Angular Magnetic Encoder is an angular magnetic rotary sensor that provides accurate angular measurement over a full 360° of rotation. The AEAT-9955 integrates Hall sensor elements with complex analog and digital signal processing into 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 shaft, axial, and radial) modes in applications.
The AEAT-9955 is a versatile solution capable of supporting a broad range of applications with its robust architecture to measure and deliver absolute and incremental signals. The absolute angle measurement instantly indicates the magnet’s angular position with a selectable and re-programmable resolution from 10 to 18 bits. When selected, its positioning data is then represented digitally to be assessed through a standard SSI (parity) and SPI (with CRC and Parity option) communication protocol. Where desired, users may also choose to receive its absolute angle position in PWM-encoded output signals. The incremental positions are indicated on ABI and UVW signals with a wide user-configurable resolution from 1CPR and up to 20,000CPR .of ABI signals and pole pairs from 1 to 32 pole pairs (2 to 64 poles) for UVW commutation signals.
The Broadcom AEAT-9955 Programmable Angular Magnetic Encoder is offered in a compact 5mm x 5mm Quad Flat No-lead (QFN) package with a -40°C to +125°C operating temperature range.
