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參數(shù)資料
| 型號(hào)： | LPR510AL |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBCC16 |
| 封裝： | 5 X 5 MM, 1.50 MM HEIGHT, GREEN, PLASTIC, LGA-16 |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 220K |
| 代理商： | LPR510AL |
Application hints
LPR510AL
8/12
Doc ID 15811 Rev 2
4
Application hints
Figure 3.
LPR510AL 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 LPR510AL allows band limiting of the output rate response through the use of an
external low pass filter (suggested) and/or high pass filter (optional) in addition to the
embedded low pass filter (ft = 140 Hz).
4xOUTX and 4xOUTY are respectively OUTX and OUTY amplified outputs lines, internally
buffered to ensure low output impedance.
If external high pass or low pass filtering is not applied it is mandatory to short-circuit
respectively pad 4 to pad 5 and pad 9 to pad 10 when amplified outputs are used.
When only not-amplified outputs are used (OUTX/Y), it is suggested to set pads 5 and 9 to
fixed reference voltage (GND/Vref).
When high pass filter is applied to not amplified output (OUTx), it is recommended to buffer
the line before entering ADC for performance optimization.
The LPR510AL IC includes a PLL (phase locked loop) circuit to synchronize driving and
sensing interfaces. Capacitors and resistors must be added at the FILTVDD and VCONT
pins (as shown in
Figure 3) to implement a low-pass filter.
(TOP VIEW)
DIRECTION OF THE
DETECTABLE
ANGULAR RATES
+
Y
+
X
100 nF
10kOhm
470nF
Vdd
GND
HP
Vref
4xOUTY
C2
R1
C1
GND
10 F
GND
Recomended
Low-pass filter
LPR510AL
(Top View)
1
16
14
13
9
8
6
5
10nF
PD
ST
GND
Vref
4x
OU
T
X
Optional
High-pass filter
Vref
GND
Typical values:
C1
R1
C2
R2
C1
R1
C2
R2
R1 = 1MOhm
C1 = 4.7 F
R2 = 33kOhm
C2 = 2.2 nF to 2.2 F
Not amplified
filtered output Y
Not amplified
filtered output X
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