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AS5046ASST 数据表(PDF) 1 Page - ams AG |
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AS5046ASST 数据表(HTML) 1 Page - ams AG |
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1 / 33 page  Revision 1.1 www.austriamicrosystems.com Page 1 of 33 1 General Description The AS5046 is a contactless magnetic angle encoder for accurate measurement up to 360°. It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device. The AS5046 provides a digital serial 12-bit as well as a programmable 10-bit ratiometric analog output that is directly proportional to the angle of a magnet, rotating over the chip. In addition, the serial interface enables a user configurable arrangement of the Hall array and allows access to each individual Sensor of the Hall Array. The AS5046 also provides high resolution information of the magnetic field strength, respectively the vertical distance of the magnet, thus adding excellent state-of- health information of the overall system. An internal voltage regulator allows operation of the AS5046 from 3.3V or 5.0V supplies. Figure 1: Typical arrangement of AS5046 and magnet Benefits • Complete system-on-chip • High reliability due to non-contact sensing • Bi-directional 2-wire interface • Programmable ratiometric analog output • Ideal for application s in harsh environments • Robust system, tolerant to magnet misalignment, airgap variations, temperature variations and external magnetic fields • No calibration required 2 Key Features • 360° contactless high resolution angular position encoding • User programmable zero position • 12-bit 2-wire serial interface • Versatile analog output programmable angular range up to 360° programmable ratiometric output voltage range • High resolution magnet distance indication 256 steps within recommended range (~0.5 to 1.8mm) 256 steps over extended range (~0 to 5mm) • Mode input for optimizing noise vs. speed • Alignment mode for magnet placement guidance • Wide temperature range: - 40°C to + 125°C • Small package: SSOP 16 (5.3mm x 6.2mm) 3 Applications The AS5046 is ideal for applications that require high resolution, a minimum of wires between controller and sensor and where the vertical distance of the magnet is of importance: • Remote sensors • Rotate-and-push manual input devices • Joysticks • Applications with extended safety requirements regarding magnet distance Figure 2: AS5046 block diagram AS5046 PROGRAMMABLE 12-bit 360° MAGNETIC ANGLE ENCODER WITH ABSOLUTE 2-WIRE SERIAL AND ANALOG INTERFACES PRELIMINARY DATA SHEET DSP Hall Array & Frontend Amplifier OTP Register Programming Parameters Sin Cos Ang Mag MagRNGn Mode CSn SCL FB Vout Prog_DI SDA 10bit DAC + - 10 DACout DACref 12 8 12 14-bit ADC 14-bit ADC Hall Sensor switch matrix 12 12 8 Range preselect Absolute Interface (I²C) AGC 8 AS5046 |
类似零件编号 - AS5046ASST |
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类似说明 - AS5046ASST |
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