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參數(shù)資料
| 型號(hào)： | LISY300ALTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | TEMPERATURE SENSOR, PBCC28 |
| 封裝： | 7 X 7 MM, 1.50 MM HEIGHT, GREEN, PLASTIC, LGA-28 |
| 文件頁(yè)數(shù)： | 13/13頁(yè) |
| 文件大?。?/td> | 171K |
| 代理商： | LISY300ALTR |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)當(dāng)前第13頁(yè)
LISY300AL
Application hints
9/13
3
Application hints
Figure 3.
LISY300AL electrical connections and external components values
Power supply decoupling capacitors (100 nF ceramic or polyester + 10 F Aluminum)
should be placed as near as possible to the device (common design practice).
The LISY300AL allows to band limit the output rate response through the use of two first-
order on-chip filters: a switched capacitor low-pass filter, with 400Hz -3dB bandwidth, in
combination with an active low-pass filter. The active filter -3 dB nominal frequency (ftA) is
set through an internal resistor RACT and the external capacitor CACT (added between
CACT pin #5 and ANALOG OUTPUT pin #6), by the formula:
The value of the internal resistor RACT is 180 k, while the external capacitor CACT is used to
select the signal bandwidth. The sensed frequency range spans from DC up to the selected
bandwidth.
In order to further reduce high-frequency noise, the LISY300AL supports an additional
given by the formula:
100 nF
9.5kOhm
450nF
9nF
0.4nF
VDD
1
7
2
3
4
5
6
8
9 10 11 12 13 14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
GND
PD
ST
LISY300AL
(top view)
C2
R1
C1
CLOAD
CACT
GND
10 F
GND
COPT
ROPT
Optional
Low-pass filter
Digital signals
VoutYAW
+
z
f
tA
1
2
π R
ACT
C
ACT
---------------------------------------------------
=
f
tP
1
2
π R
OPT
C
OPT
----------------------------------------------------
=
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