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LM4890M/NOPB bảng dữ liệu(PDF) 7 Page - Texas Instruments

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tên linh kiện LM4890M/NOPB
Giải thích chi tiết về linh kiện  1 Watt Audio Power Amplifier
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LM4890M/NOPB bảng dữ liệu(HTML) 7 Page - Texas Instruments

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LM4890
www.ti.com
SNAS138L – SEPTEMBER 2001 – REVISED MAY 2013
External Components Description
(See Figure 7)
Components
Functional Description
1.
RIN
Inverting input resistance which sets the closed-loop gain in conjunction with Rf. This resistor also forms a high pass
filter with CIN at fC= 1/(2π RINCIN).
2.
CIN
Input coupling capacitor which blocks the DC voltage at the amplifier's input terminals. Also creates a highpass filter
with RIN at fc = 1/(2π RINCIN). Refer to the section, Proper Selection of External Components, for an explanation of how
to determine the value of CIN.
3.
Rf
Feedback resistance which sets the closed-loop gain in conjunction with RIN.
4.
CS
Supply bypass capacitor which provides power supply filtering. Refer to the section, Power Supply Bypassing, for
information concerning proper placement and selection of the supply bypass capacitor, CBYPASS.
5.
CBYPAS Bypass pin capacitor which provides half-supply filtering. Refer to the section, Proper Selection of External
S
Components, for information concerning proper placement and selection of CBYPASS.
Copyright © 2001–2013, Texas Instruments Incorporated
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Product Folder Links: LM4890



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