參數(shù)資料
型號: LPY4150AL
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> 259K
代理商: LPY4150AL
Application hints
LPY4150AL
10/14
Doc ID 16581 Rev 1
5
Application hints
Figure 3.
LPY4150AL 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 LPY4150AL 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).
The 4xOUTX and 4xOUTZ are, respectively, OUTX and OUTZ 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 LPY4150AL 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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