DISCRETE SEMICONDUCTORS DATA SHEET UZZ9000 Sensor Conditioning Electronics Objective specification Supersedes data of 1996 Dec 03 File under Discrete Semiconductors, SC17 1998 May 18 Philips Semiconductors Objective specification Sensor Conditioning Electronics UZZ9000 FEATURES PINNING • One chip angle sensor output signal conditioning SYMBOL PIN • Overall accuracy better than 1° for 100° angle range DESCRIPTION +VO2 1 sensor 2 positive differential input • Temperature range from −40 to 150 °C +VO1 2 sensor 1 positive differential input • Adjustable angle range VDD2 3 supply voltage (digital 2) • Adjustable zero point. VSS 4 ground (digital) GND 5 ground DESCRIPTION GND 6 ground 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, α2 to α1) and the zero point (Fig.3, α1) in wide ranges. These ranges are determined by an external voltage divider. 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 −VO2 23 sensor 2 negative differential input −VO1 24 sensor 1 negative differential input Note 1. Pin to be left unconnected. 1998 May 18 2 Philips Semiconductors Objective specification Sensor Conditioning Electronics UZZ9000 QUICK REFERENCE DATA SYMBOL PARAMETER MIN. TYP. MAX. UNIT VDDA supply voltage; note 1 4.5 5 5.5 V VDD1 supply voltage; note 1 4.5 5 5.5 V VDD2 supply voltage; note 1 4.5 5 5.5 V ICC (tot) total supply current − 12 − mA VS1 differential input voltage (peak voltage) −140 − +140 mV VS2 differential input voltage (peak voltage) −140 − +140 mV VS1 common mode range 2.2 − 2.8 V VS2 common mode range 2.2 − 2.8 V Vout output voltage range (ratiometric) 5 − 95 %VDD VIA1 programmable offset voltage −2.5 − +2.5 %VDD VIA2 programmable gain factor 1 − 6 A accuracy (deviation from best straight line) −0.5 − +0.5 %VDD R resolution − 0.05 0.1 %VDD H hysteresis − 0.05 0.1 %VDD Tamb ambient temperature −40 − +150 (2) °C Notes 1. VDDA, VDD1 and VDD2 must be connected to the same supply voltage. 2. 200 hours (125 °C continuous). 1998 May 18 3 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... +VO1 ADC1 −VO1 14 13 ALGORITHM +VO2 VS2 14 −VO2 ADJUSTMENT 13 OF OUTPUT CURVE CHARACTERISTIC BUFFER DAC Vout Philips Semiconductors sin(x) Sensor Conditioning Electronics CIRCUIT BLOCK DIAGRAM 1998 May 18 VS1 ADC2 Vout BUFFER RC-OSCILLATOR & CLOCK GENERATOR TEST/TRIM MODE RESET x MBH735 VIA1 VDDA VDD1 VSSA VDD2 VSS OFFS2 VIA2 OFFS1 Objective specification Fig.1 Block diagram. UZZ9000 VS1, VS2: differential input voltages. handbook, full pagewidth 4 −cos(x) Philips Semiconductors Objective specification Sensor Conditioning Electronics UZZ9000 APPLICATION INFORMATION handbook, full pagewidth KMZ41 +VO2 −VO2 +VO1 2 VCC2 VDD2 VSS 7 GND2 3 GND 6 +VO2 GND SO8 GND 1 −VO1 VCC1 4 8 GND1 (1) GND GND 5 +VO1 (1) VOUT 1 UZZ9000 24 2 23 3 22 4 21 5 20 6 7 19 SO24 18 8 17 9 16 −VO1 −VO2 SUPPLY VOLTAGE (1) VDD1 GND GND VSSA VDDA R1 R2 R3 R4 OFFS1 OFFS2 10 15 11 14 12 13 VIA1 VIA2 GND Rpulldown R2 MBH733 (1) Pin to be left unconnected. Fig.2 Application circuit. 1998 May 18 5 VOUT Philips Semiconductors Objective specification Sensor Conditioning Electronics handbook, full pagewidth UZZ9000 MBH734 VOUT/VDDA 100% diagnostics area 97% 95% 94% max.output voltage range best straight line tolerance band min.output voltage range 6% 5% 3% diagnostics area 0 α1 α2 Fig.3 Output characteristic. 1998 May 18 6 α Philips Semiconductors Objective specification Sensor Conditioning Electronics UZZ9000 DEFINITIONS Data Sheet Status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. 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