uzz9000 NXP Semiconductors, uzz9000 Datasheet - Page 4

• Manufacturer Part Number: uzz9000
• Description: Sensor Conditioning Electronics
• Manufacturer: NXP Semiconductors

Philips Semiconductors
ELECTRICAL CHARACTERISTICS
T
specified.
FUNCTIONAL DESCRIPTION
The UZZ9000 is a mixed signal IC for angle measurement
systems. The UZZ9000 has been designed for the double
sensor KMZ41. It combines two analog signals (sine and
cosine) into a linear output signal. The analog
measurement signals on the IC input are converted to
digital data by two ADC’s. Each ADC is a Sigma-Delta
modulator employing a 4th order continuous time
architecture with an over-sampling ratio of 128 to achieve
high resolution. The converter output is a digital bit-stream
with an over-sampling frequency of typically 500 kHz.
The bit-stream is fed into a decimation filter which
2000 Nov 27
V
V
V
I
(+V
f
f
C
V
V
V
A
Res
t
t
V
amb
DD
ext
int
on
r
DDA
DD1
DD2
reset
out
d
LM
load
Sensor Conditioning Electronic
SYMBOL
O
= 40 to +150 C; V
)-( V
O
)
supply voltage
supply voltage
supply voltage
supply current
differential input voltage
common mode range
lost magnet threshold
external clock frequency
internal clock frequency
output load
switching voltage threshold
for power on/off
hysteresis
output voltage range for
valid ranges
diagnostic area
accuracy
resolution
power up time
response time
sensor voltage
PARAMETER
DD
= 4.5 to 5.5 V; typical characteristics for T
without load
referred to V
referred to V
referred to V
for trim interface
T
with series resistance
>300
between falling and
rising V
lower bound
upper bound
for irregular input
signal
with ideal input signal;
range = 100
range = 100
to 95% of final value
lost magnet threshold
j
= 40 to 150 C
CONDITIONS
DD
DD
DD
DD
4
performs both low pass filtering and down-sampling. The
IC has two input channels each of which has its own ADC
and decimation filter. The two decimation filter outputs are
15-bit digital words at a lower frequency of typically
3.9 kHz which is the typical sampling frequency of the
sensor system. The digital representations of the two
signals are then used to calculate the current angle by the
ALU. This calculation is carried out using the so-called
CORDIC algorithm. The angle is represented by a 13-bit
resolution. A DAC converts the digital signal back to the
analog domain.
4.5
4.5
4.5
490
0.1
2.3
2.8
5
94
0
96
0.1
12
amb
6.6
0.45
MIN.
= 25 C and V
5
5
5
10
3
4
0.3
0.7
15
TYP.
DD
= 5 V unless otherwise
5.5
5.5
5.5
15
510
1
5.7
50
200
4.5
6
95
4
100
20
1.2
20
28
MAX.
Product specification
UZZ9000
V
V
V
mA
mV/V
mV/V
mV/V
MHz
MHz
pF
nF
V
% V
% V
% V
% V
degree
degree
ms
ms
mV
UNIT
DD
DD
DD
DD