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UZZ9000 датащи(PDF) 2 Page - NXP Semiconductors |
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UZZ9000 датащи(HTML) 2 Page - NXP Semiconductors |
2 / 8 page 1998 May 18 2 Philips Semiconductors Objective specification Sensor Conditioning Electronics UZZ9000 FEATURES • One chip angle sensor output signal conditioning • Overall accuracy better than 1° for 100° angle range • Temperature range from −40 to 150 °C • Adjustable angle range • Adjustable zero point. DESCRIPTION The UZZ9000 is an integrated circuit which is able to combine two sinusoidal signals (sin and cos) into one single linear output signal. These signals might come from magnetoresistive sensors. In that case this function can provide good results as the signal conditioning electronic for angle measurement forming from the output signal of two magnetoresistive sensors. This gives the sin ( α) and the cos ( α) of the angle to be measured a linear output characteristic for angles up to 360 °. This integrated circuit can also be used for all other applications in which the sin and the cos of a signal have to be transferred in one output characteristic. A typical application would be any kind of resolver application. The two primary input signals are converted into the digital domain, with a CORDIC algorithm performing the arctan transformation. Since todays applications work typically with analog output signals (e.g. potentiometers), the resulting signal which is transferred back to the analog domain is a ratiometric one. This integrated circuit enables the user to set both the angle range to be measured (Fig.3, α 2 to α1) and the zero point (Fig.3, α1) in wide ranges. These ranges are determined by an external voltage divider. PINNING Note 1. Pin to be left unconnected. SYMBOL PIN DESCRIPTION +VO2 1 sensor 2 positive differential input +VO1 2 sensor 1 positive differential input VDD2 3 supply voltage (digital 2) VSS 4 ground (digital) GND 5 ground GND 6 ground GND 7 ground − 8 note 1 GND 9 ground GND 10 ground − 11 note 1 VOUT 12 output voltage VIA2 13 voltage input adjust 2 VIA1 14 voltage input adjust 1 OFFS2 15 voltage input adjust sensor offset 2 OFFS1 16 voltage input adjust sensor offset 1 VDDA 17 supply voltage (analog) VSSA 18 ground (analog) GND 19 ground GND 20 ground VDD1 21 supply voltage (digital 1) − 22 note 1 −V O2 23 sensor 2 negative differential input −V O1 24 sensor 1 negative differential input |
Аналогичный номер детали - UZZ9000 |
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Аналогичное описание - UZZ9000 |
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