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Электронный компонент: UZZ9000

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DATA SHEET
Objective specification
Supersedes data of 1996 Dec 03
File under Discrete Semiconductors, SC17
1998 May 18
DISCRETE SEMICONDUCTORS
UZZ9000
Sensor Conditioning Electronics
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 (
) 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
Note
1. Pin to be left unconnected.
SYMBOL
PIN
DESCRIPTION
+V
O2
1
sensor 2 positive differential input
+V
O1
2
sensor 1 positive differential input
V
DD2
3
supply voltage (digital 2)
V
SS
4
ground (digital)
GND
5
ground
GND
6
ground
GND
7
ground
-
8
note 1
GND
9
ground
GND
10
ground
-
11
note 1
V
OUT
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
V
DDA
17
supply voltage (analog)
V
SSA
18
ground (analog)
GND
19
ground
GND
20
ground
V
DD1
21
supply voltage (digital 1)
-
22
note 1
-
V
O2
23
sensor 2 negative differential input
-
V
O1
24
sensor 1 negative differential input
1998 May 18
3
Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
UZZ9000
QUICK REFERENCE DATA
Notes
1. V
DDA
, V
DD1
and V
DD2
must be connected to the same supply voltage.
2. 200 hours (125
C continuous).
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
V
DDA
supply voltage; note 1
4.5
5
5.5
V
V
DD1
supply voltage; note 1
4.5
5
5.5
V
V
DD2
supply voltage; note 1
4.5
5
5.5
V
I
CC (tot)
total supply current
-
12
-
mA
V
S1
differential input voltage (peak voltage)
-
140
-
+140
mV
V
S2
differential input voltage (peak voltage)
-
140
-
+140
mV
V
S1
common mode range
2.2
-
2.8
V
V
S2
common mode range
2.2
-
2.8
V
V
out
output voltage range (ratiometric)
5
-
95
%V
DD
VIA1
programmable offset voltage
-
2.5
-
+2.5
%V
DD
VIA2
programmable gain factor
1
-
6
A
accuracy (deviation from best straight line)
-
0.5
-
+0.5
%V
DD
R
resolution
-
0.05
0.1
%V
DD
H
hysteresis
-
0.05
0.1
%V
DD
T
amb
ambient temperature
-
40
-
+150
(2)
C
1998
May
18
4
Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
UZZ9000
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CIRCUIT BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
MBH735
ALGORITHM
ADJUSTMENT
OF
OUTPUT CURVE
CHARACTERISTIC
RC-OSCILLATOR
&
CLOCK GENERATOR
BUFFER
DAC
x
14
ADC1
ADC2
14
13
13
Vout
Vout
BUFFER
-
cos(x)
sin(x)
TEST/TRIM
MODE
RESET
OFFS2
OFFS1
VIA2
VIA1
VDDA
VDD1
VSSA
VSS
VDD2
+
VO1
-
VO1
+
VO2
-
VO2
VS1
VS2
V
S1
, V
S2
: differential input voltages.
1998 May 18
5
Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
UZZ9000
APPLICATION INFORMATION
Fig.2 Application circuit.
handbook, full pagewidth
MBH733
SO24
SO8
1
24
+
VO2
VDD2
2
23
3
22
7
VCC2
VCC1
6
1
8
VDD1
R1
VSS
VSSA
VDDA
4
21
5
3
GND2
GND1
-
VO1
-
VO1
+
VO1
+
VO1
+
VO2
-
VO2
-
VO2
4
2
5
(1)
(1)
(1)
20
6
19
7
18
8
17
OFFS1
OFFS2
VIA1
GND
GND
GND
GND
GND
GND
GND
VIA2
VOUT
9
16
10
15
11
14
12
13
R2
R3
R4
GND
SUPPLY
VOLTAGE
VOUT
R2
Rpulldown
KMZ41
UZZ9000
(1) Pin to be left unconnected.
1998 May 18
6
Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
UZZ9000
Fig.3 Output characteristic.
handbook, full pagewidth
MBH734
VOUT/VDDA
max.output voltage range
min.output voltage range
diagnostics area
1
2
diagnostics area
best straight line
100%
95%
97%
94%
tolerance band
5%
6%
3%
0
1998 May 18
7
Philips Semiconductors
Objective specification
Sensor Conditioning Electronics
UZZ9000
DEFINITIONS
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
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.
Internet: http://www.semiconductors.philips.com
Philips Semiconductors a worldwide company
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.
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Printed in The Netherlands
115106/1200/02/pp8
Date of release: 1998 May 18
Document order number:
9397 750 03809