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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
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 () and the cos () 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, 2 to 1) and the zero point (Fig.3, 1) in wide ranges. These ranges are determined by an external voltage divider. PINNING SYMBOL +VO2 +VO1 VDD2 VSS GND GND GND - GND GND - VOUT VIA2 VIA1 OFFS2 OFFS1 VDDA VSSA GND GND VDD1 - -VO2 -VO1 Note 1. Pin to be left unconnected. PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
UZZ9000
DESCRIPTION sensor 2 positive differential input sensor 1 positive differential input supply voltage (digital 2) ground (digital) ground ground ground note 1 ground ground note 1 output voltage voltage input adjust 2 voltage input adjust 1 voltage input adjust sensor offset 2 voltage input adjust sensor offset 1 supply voltage (analog) ground (analog) ground ground supply voltage (digital 1) note 1 sensor 2 negative differential input sensor 1 negative differential input
1998 May 18
2
Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
QUICK REFERENCE DATA SYMBOL VDDA VDD1 VDD2 ICC (tot) VS1 VS2 VS1 VS2 Vout VIA1 VIA2 A R H Tamb Notes 1. VDDA, VDD1 and VDD2 must be connected to the same supply voltage. 2. 200 hours (125 C continuous). PARAMETER supply voltage; note 1 supply voltage; note 1 supply voltage; note 1 total supply current differential input voltage (peak voltage) differential input voltage (peak voltage) common mode range common mode range output voltage range (ratiometric) programmable offset voltage programmable gain factor accuracy (deviation from best straight line) resolution hysteresis ambient temperature MIN. 4.5 4.5 4.5 - -140 -140 2.2 2.2 5 -2.5 1 -0.5 - - -40 5 5 5 12 - - - - - - - - 0.05 0.05 - TYP.
UZZ9000
MAX. 5.5 5.5 5.5 - +140 +140 2.8 2.8 95 +2.5 6 +0.5 0.1 0.1 +150 (2) V V V
UNIT
mA mV mV V V %VDD %VDD %VDD %VDD %VDD C
1998 May 18
3
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VS1 sin(x) +VO1 -VO1 +VO2 -VO2 -cos(x) BUFFER ADC2 Vout ADC1 14 13 ALGORITHM 14 VS2 ADJUSTMENT 13 OF OUTPUT CURVE CHARACTERISTIC BUFFER DAC Vout
handbook, full pagewidth
CIRCUIT BLOCK DIAGRAM
Philips Semiconductors
Sensor Conditioning Electronics
4
RC-OSCILLATOR & CLOCK GENERATOR
TEST/TRIM MODE
RESET
x
MBH735
VIA1
VIA2 OFFS1
OFFS2
VDDA
VDD1 VSSA VDD2 VSS
Objective specification
UZZ9000
VS1, VS2: differential input voltages.
Fig.1 Block diagram.
Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
APPLICATION INFORMATION
UZZ9000
handbook, full pagewidth
KMZ41
-VO2 2
+VO2 +VO1 VDD2
1 2 3 4 5 6 7 8
UZZ9000
24 23 22 21 20
-VO1 -VO2
(1)
VCC2
3
7 GND2 6 +VO2
VSS GND GND GND
(1)
VDD1 GND GND VSSA VDDA OFFS1 R1 R2 R3 R4
SUPPLY VOLTAGE
SO8
1 -VO1 VCC1 4 8 GND1
SO24
19 18 17 16
GND 5 +VO1
(1)
9 10 11 12
GND
OFFS2 15 14 13 VIA1 VIA2
VOUT
GND Rpulldown R2 VOUT
MBH733
(1) Pin to be left unconnected.
Fig.2 Application circuit.
1998 May 18
5
Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
UZZ9000
handbook, full pagewidth
VOUT/VDDA
MBH734
100% diagnostics area 97% 95% 94% max.output voltage range tolerance band best straight line min.output voltage range 6% 5% 3% diagnostics area 0
1
2
Fig.3 Output characteristic.
1998 May 18
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Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
DEFINITIONS Data Sheet Status Objective specification Preliminary specification Product specification Limiting values
UZZ9000
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
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. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale
1998 May 18
7
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For all other countries apply to: Philips Semiconductors, International Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 (c) Philips Electronics N.V. 1998
SCA60
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
115106/1200/02/pp8
Date of release: 1998 May 18
Document order number:
9397 750 03809

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