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參數(shù)資料
| 型號： | LPR450ALTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA28 |
| 封裝： | 4 X 5 MM, 1 MM HEIGHT, GREEN, PLASTIC, LGA-28 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 256K |
| 代理商： | LPR450ALTR |
Application hints
LPR450AL
10/14
Doc ID 16575 Rev 1
5
Application hints
Figure 3.
LPR450AL 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 LPR450AL allows band limiting of the output rate response through the use of an
external low-pass filter (recommended) in addition to the embedded low-pass filter
(ft = 140 Hz).
4xOUTX and 4xOUTY are, respectively, OUTX and OUTY amplified output lines, internally
buffered to ensure low output impedance.
If external low-pass filtering is not applied, it is mandatory to short-circuit pin 1 to pin 5 and
pin 16 to pin 20, respectively, when amplified outputs are used.
When only a non-amplified output is used (OUTX/OUTZ), it is recommended to set pin 5
and 16 to a fixed reference voltage (Vref).
The LPR450AL 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.
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