Abstract: A method performed by a controller comprising assigning a first status indicator to entries in a first address line in a volatile memory belonging to a first region of an LUT stored in a non-volatile memory, and a second status indicator to entries in the first address line in the volatile memory belonging to a second region of the LUT, setting either the first or second status indicator to a dirty status based on whether a cache updated entry at an address m in the volatile memory belongs to the first or second region of the LUT, and writing, based on the dirty status of the first and second status indicator at the address m, all entries in the volatile memory associated with the first region or the second region containing the updated entry to the non-volatile memory.

Abstract: A method performed by a controller comprising assigning a first status indicator to entries in a first address line in a volatile memory belonging to a first region of an LUT stored in a non-volatile memory, and a second status indicator to entries in the first address line in the volatile memory belonging to a second region of the LUT, setting either the first or second status indicator to a dirty status based on whether a cache updated entry at an address m in the volatile memory belongs to the first or second region of the LUT, and writing, based on the dirty status of the first and second status indicator at the address m, all entries in the volatile memory associated with the first region or the second region containing the updated entry to the non-volatile memory.

Abstract: A method performed by a controller comprising assigning a first status indicator to entries in a first address line in a volatile memory belonging to a first region of an LUT stored in a non-volatile memory, and a second status indicator to entries in the first address line in the volatile memory belonging to a second region of the LUT, setting either the first or second status indicator to a dirty status based on whether a cache updated entry at an address m in the volatile memory belongs to the first or second region of the LUT, and writing, based on the dirty status of the first and second status indicator at the address m, all entries in the volatile memory associated with the first region or the second region containing the updated entry to the non-volatile memory.

Abstract: A method performed by a controller comprising assigning a first status indicator to entries in a first address line in a volatile memory belonging to a first region of an LUT stored in a non-volatile memory, and a second status indicator to entries in the first address line in the volatile memory belonging to a second region of the LUT, setting either the first or second status indicator to a dirty status based on whether a cache updated entry at an address m in the volatile memory belongs to the first or second region of the LUT, and writing, based on the dirty status of the first and second status indicator at the address m, all entries in the volatile memory associated with the first region or the second region containing the updated entry to the non-volatile memory.

Abstract: A magnetic field sensor includes a circular vertical Hall (CVH) sensing element to produce a signal representing an external magnetic field as detected by the CVH sensing element, a sigma-delta analog-to-digital converter to generate a converted signal, modulators to produce quadrature modulated signals from the converted signal, and a processor to produce an estimated angle of the external magnetic field using the quadrature modulated signals. An arctangent function may be used to calculate the estimated angle. A sliding window integration scheme may be used over one or more CVH cycles.

Abstract: A magnetic field sensor comprises a circular vertical Hall (CVH) sensing element having a plurality of vertical Hall elements. A CVH output stage is included comprising one or more of drive circuits to drive the plurality of vertical Hall elements and produce an analog signal representing a strength of an external magnetic field as detected by the plurality of vertical Hall elements. An analog-to-digital converter is coupled to receive the analog signal and produce a digital signal. A quadrature modulator circuit is coupled to the digital signal and operable to generate a plurality of quadrature modulated signals. A processor stage receives signals representative of the plurality of quadrature modulated signals and computes an estimated angle of the external magnetic field.

Abstract: A magnetic field sensor comprises a circular vertical Hall (CVH) sensing element comprising a plurality of vertical Hall elements, each vertical Hall element comprised of a respective group of vertical Hall element contacts selected from among a plurality of vertical Hall element contacts. A quadrature modulator circuit is coupled to the digital signal and operable to generate a plurality of quadrature modulated signals. A processor stage is coupled to receive the signals representative of the plurality of quadrature modulated signals, and operable to perform a sliding window integration using the signals representative of the plurality of quadrature modulated signals and compute an estimated angle of the external magnetic field using the signals representative of the plurality of quadrature modulated signals.

Abstract: A magnetic field sensor comprises a circular vertical Hall (CVH) sensing element having a plurality of vertical Hall elements. A CVH output stage is included comprising one or more of drive circuits to drive the plurality of vertical Hall elements and produce an analog signal representing a strength of an external magnetic field as detected by the plurality of vertical Hall elements. An analog-to-digital converter is coupled to receive the analog signal and produce a digital signal. A quadrature modulator circuit is coupled to the digital signal and operable to generate a plurality of quadrature modulated signals. A processor stage receives signals representative of the plurality of quadrature modulated signals and computes an estimated angle of the external magnetic field.

Abstract: A magnetic field sensor includes a circular vertical Hall (CVH) sensing element to produce a signal representing an external magnetic field as detected by the CVH sensing element, a sigma-delta analog-to-digital converter to generate a converted signal, modulators to produce quadrature modulated signals from the converted signal, and a processor to produce an estimated angle of the external magnetic field using the quadrature modulated signals. An arctangent function may be used to calculate the estimated angle. A sliding window integration scheme may be used over one or more CVH cycles.

Abstract: A magnetic field sensor comprises a circular vertical Hall (CVH) sensing element comprising a plurality of vertical Hall elements, each vertical Hall element comprised of a respective group of vertical Hall element contacts selected from among a plurality of vertical Hall element contacts. A quadrature modulator circuit is coupled to the digital signal and operable to generate a plurality of quadrature modulated signals. A processor stage is coupled to receive the signals representative of the plurality of quadrature modulated signals, and operable to perform a sliding window integration using the signals representative of the plurality of quadrature modulated signals and compute an estimated angle of the external magnetic field using the signals representative of the plurality of quadrature modulated signals.