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參數(shù)資料
| 型號(hào)： | LPR430ALTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 模擬信號(hào)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： | LPR430ALTR |
Application hints
LPR430AL
10/14
Doc ID 16574 Rev 1
5
Application hints
Figure 3.
LPR430AL electrical connections and external component 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 LPR430AL allows band limiting 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 non-amplified output is used (OUTX/OUTY), it is recommended to set pin 5 and
16 to fixed reference voltage (Vref).
The LPR430AL 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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