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UZZ9001 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 UZZ9001
기능 Sensor Conditioning Electronic
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UZZ9001 데이터시트, 핀배열, 회로
DISCRETE SEMICONDUCTORS
DATA SHEET
UZZ9001
Sensor Conditioning Electronic
Product specification
Supersedes data of 2000 May 19
2000 Nov 27




UZZ9001 pdf, 반도체, 판매, 대치품
Philips Semiconductors
Sensor Conditioning Electronic
Product specification
UZZ9001
ELECTRICAL CHARACTERISTICS
Tamb = 40 to +150 °C; VDD = 4.5 to 5.5 V; typical characteristics for Tamb = 25 °C and VDD = 5 V unless otherwise
specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VDDA
VDD1
VDD2
IDD
(+VO)-(VO)
fext
fint
Io
supply voltage
supply voltage
supply voltage
supply current
differential input voltage
common mode range
lost magnet threshold
external clock frequency
internal clock frequency
data output
Vreset
A
Res
ton
tr
VID
switching voltage
threshold
hysteresis
accuracy
resolution
power up time
response time
digital input voltage
VOD digital output voltage
VLM sensor voltage
without load
referred to VDD
referred to VDD
referred to VDD
for trim interface
constant current
peak current
between falling and
rising VDD
with ideal input signal
to 95% of final value
LO signal
HI signal
LO signal
HI signal
lost magnet threshold
4.5
4.5
4.5
±6.6
490
0.1
2.3
2.8
±0.35
0
0.7 x VDD
VDD 0.8
12
5
5
5
5
3
4
0.3
13
0.7
15
5.5 V
5.5 V
5.5 V
15 mA
±28 mV/V
510 mV/V
mV/V
1 MHz
5.7 MHz
1 mA
10 mA
4.5 V
20
1.2
0.3 x VDD
VDD
0.4
20
V
degree
bit
ms
ms
V
V
V
V
mV
FUNCTIONAL DESCRIPTION
The UZZ9001 is a mixed signal IC for angle measurement
systems. It combines two analog signals (sine and cosine)
into a linear output signal. The output stage implements
the Motorola Serial Peripheral Interface (SPI) protocol.
The UZZ9001 has been designed for use with the double
sensor KMZ41.
The analog measurement signals on the IC input are
converted to digital data with two ADC’s. The ADC’s are 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
bitstream with an over-sampling frequency of typically
500 kHz.
The bitstream is fed into a decimation filter which 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. This
calculation is carried out using the so-called CORDIC
algorithm. The angle is represented with a 13-bit
resolution. An SPI compatible interface converts the
output word to the serial peripheral interface protocol.
2000 Nov 27
4

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UZZ9001 전자부품, 판매, 대치품
Philips Semiconductors
Sensor Conditioning Electronic
Product specification
UZZ9001
handbook, full pagewidth
DATA
CS
sensor byte 2
sensor byte 1
Fig.3 CS Line timing.
MHB700
Sensor signal coding
The sensor signal comprises 14 bits (D13 to D0) as shown
in Fig.4. Bits D12 to D0 are used for the coding of the
angle while D0 is reserved to indicate error and diagnostic
conditions as defined below. The 14 data bits are arranged
in 2 Bytes. D13 is the MSB of the sensor signal and D0 is
the LSB of the sensor signal. Byte 2, which is sent first,
contains data bits D13 to D7 and additionally the parity bit
P2 which is included for the recognition of interrupted
messages. P2 gives the ODD parity of data bits D13 to D7
and has to be evaluated by the master module.Similarly,
Byte 1 comprises data bits D6 to D0 and parity bit P1,
which gives the ODD parity of data bits D6 to D0. The
internal coding of angle values is as follows:
00 0000 0000 0000B = 0°, 180°
The error and diagnostic conditions are indicated by
D13 = 1 (active high). In an error situation the last two bits
(D0 and D1) specify the error code (see Table 2). All other
bits (D3 to D12) still show the current measurement value,
but as the last two bits are lost for measurement
representation the resolution is reduced to 11 bit.
Table 2 Error and diagnostic cases coding
D1 D0
CASE
MEASUREMENT
VALUE
RELIABLE
0 0 no valid value presently no
available due to RESET
0 1 magnet lost
no
1 0 reserved
1 1 reserved
01 1111 1111 1111B =
D13 DO
(213 1) -1--2-8--1-0--3--°- 179.978
During normal operation, bit D13 is active low. Each
increment represents an angle value
of: αinc = 1---2-8--1-0--3--°- 0.022°
handbook, full pagewidth
2000 Nov 27
sensor byte 2
sensor byte 1
P2 D13 D12 D11 D10 D9 D8 D7 P1 D6 D5 D4 D3 D2 D1 D0
MSB
LSB
MHB701
Fig.4 Sensor signal coding.
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