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LM4674ATL/NOPB Datasheet(PDF) 5 Page - Texas Instruments

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No. de pieza LM4674ATL/NOPB
Descripción Electrónicos  Filterless 2.5W Stereo Class D Audio Power Amplifier
PDF  19 Pages
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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LM4674ATL/NOPB Datasheet(HTML) 5 Page - Texas Instruments

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LM4674A
www.ti.com
SNAS366A – SEPTEMBER 2006 – REVISED MAY 2013
Electrical Characteristics VDD = 3.6V
(1)(2) (continued)
The following specifications apply for AV = 6dB, RL = 15µH + 8Ω + 15µH, f = 1kHz unless otherwise specified. Limits apply for
TA = 25°C.
LM4674A
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)
VRIPPLE = 200mVP-P Sine,
fRipple = 217Hz, Inputs AC GND,
75
dB
CI = 1μF, input referred
PSRR
Power Supply Rejection Ratio
VRIPPLE = 1VP-P Sine,
fRipple = 1kHz, Inputs AC GND,
75
dB
CI = 1μF, input referred
VRIPPLE = 1VP-P
CMRR
Common Mode Rejection Ratio
67
dB
fRIPPLE = 217Hz
PO = 1W, f = 1kHz,
η
Efficiency
85
%
RL = 8Ω, VDD = 5V
Crosstalk
PO = 500mW, f = 1kHz
84
dB
SNR
Signal to Noise Ratio
VDD = 5V, PO = 1W
96
dB
εOS
Output Noise
Input referred, A-Weighted Filter
20
μV
External Components Description
(Figure 1)
Components
Functional Description
1.
CS
Supply bypass capacitor which provides power supply filtering. Refer to the Power Supply Bypassing section for
information concerning proper placement and selection of the supply bypass capacitor.
2.
CI
Input AC coupling capacitor which blocks the DC voltage at the amplifier's input terminals.
Copyright © 2006–2013, Texas Instruments Incorporated
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