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LM4881 Datasheet(PDF) 4 Page - Texas Instruments |
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LM4881 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 15 page  LM4881 SNAS001D – SEPTEMBER 1997 – REVISED MAY 2013 www.ti.com Electrical Characteristics (1)(2) (continued) The following specifications apply for VDD = 5V unless otherwise specified. Limits apply for TA = 25C. Symbol Parameter Conditions LM4881 Units (Limits) Typ(3) Limit(4) P O Output Power THD = 0.1% (max); f = 1 kHz; RL = 8Ω 200 125 mW (min) RL = 16Ω 150 mW RL = 32Ω 85 mW THD + N = 10%; f = 1 kHz; RL = 8Ω 300 mW RL = 16Ω 200 mW RL = 32Ω 110 mW THD+N Total Harmonic Distortion + Noise RL = 16Ω, P O = 120 mWrms; 0.025 % R L = 32Ω, PO = 75 mWrms; f = 1 0.02 % kHz PSRR CB = 1.0 µF, VRIPPLE = 200 mVrms, f 50 dB = 120Hz IDD Quiescent Current VIN = 0V, IO = 0A 1.1 mA ISD Shutdown Current VPIN1 = VDD 0.7 µA VOS Offset Voltage VIN = 0V 5 mV P O Output Power THD = 1% (max); f = 1 kHz; RL = 8Ω 70 mW RL= 16Ω 65 mW RL = 32Ω 30 mW THD + N = 10%; f = 1 kHz; RL = 8Ω 95 mW RL = 16Ω 65 mW RL = 32Ω 35 mW THD+N Total Harmonic Distortion + Noise RL = 16Ω, P O = 60 mWrms; 0.2 % RL = 32Ω, PO = 25 mWrms; f = 1 kHz 0.03 % PSRR Power Supply Rejection Ratio CB = 1.0 µF, VRIPPLE = 200 mVrms, f 50 dB = 100 Hz External Components Description (Figure 1) Components Functional Description 1. Ri Inverting input resistance which sets the closed-loop gain in conjuction with Rf. This resistor also forms a high pass filter with Ci at fc = 1 / (2πR iCi). 2. Ci Input coupling capacitor which blocks the DC voltage at the amplifier's input terminals. Also creates a highpass filter with Ri at fc = 1 / (2πRiC i). Refer to the section, Proper Selection of External Components, for an explanation of how to determine the value of Ci. 3. Rf Feedback resistance which sets closed-loop gain in conjuction with Ri. 4. CS Supply bypass capacitor which provides power supply filtering. Refer to the Application Information section for proper placement and selection of the supply bypass capacitor. 5. CB Bypass pin capacitor which provides half-supply filtering. Refer to the section, Proper Selection of External Components, for information concerning proper placement and selection of CB. 6. CO Output coupling capacitor which blocks the DC voltage at the amplifier's output. Forms a high pass filter with RL at fO = 1/(2πRLCO) 4 Submit Documentation Feedback Copyright © 1997–2013, Texas Instruments Incorporated Product Folder Links: LM4881 |
Similar Part No. - LM4881_15 |
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Similar Description - LM4881_15 |
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