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LM4938 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM4938 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
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4 / 26 page  Electrical Characteristics for Bridged Mode Operation (Notes 7, 10) (Continued) The following specifications apply for V DD = 5V, unless otherwise noted. Limits apply for TA = 25˚C. Symbol Parameter Conditions LM4938 Units (Limits) Typical (Note 14) Limit (Note 15) P O Output Power THD+N= 1.0%; f = 1kHz R L =3 Ω (Note 8) 2.2 W THD+N= 1.0%; f = 1kHz R L =4 Ω (Note 9) 2W THD = 1% (max); f = 1kHz R L =8 Ω 1.3 1.0 W (min) THD+N = 10%;f=1 kHz; R L =8 Ω 1.5 W THD+N Total Harmonic Distortion + Noise P O = 0.4W, f = 1kHz, R L =8 Ω,A VD =2 0.05 % PSRR Power Supply Rejection Ratio C B = 1.0 µF, f = 120 Hz, V RIPPLE = 200 mVrms; RL =8 Ω, Floating 78 dB C B = 1.0 µF, f = 120 Hz, V RIPPLE = 200 mVrms; RL =8 Ω, Terminated 60 dB SNR Signal to Noise Ratio V DD = 5V, POUT = 1.2W, RL =8 Ω, A-Wtd Filter, 1kHz 100 dB X talk Channel Separation f = 1kHz, C B = 1.0µF, 1W 76 dB Electrical Characteristics for Single-Ended Mode Operation (Notes 7, 10) The following specifications apply for V DD = 5V. Limits apply for TA = 25˚C. Symbol Parameter Conditions LM4938 Units (Limits) Typical (Note 14) Limit (Note 15) P O Output Power THD = 1.0%; f = 1kHz; R L =32 Ω 92 mW THD+N Total Harmonic Distortion + Noise V OUT =1VRMS, f = 1kHz, R L = 10k Ω,A VD =1 0.065 % PSRR Power Supply Rejection Ratio C B = 1.0 µF, f = 120 Hz, V RIPPLE = 200 mVrms, Floating 63 dB C B = 1.0 µF, f = 120 Hz, V RIPPLE = 200 mVrms, Terminated 59 dB SNR Signal to Noise Ratio P OUT = 75mW, R L =32 Ω, A-Wtd Filter 100 dB X talk Channel Separation f = 1kHz, C B = 1.0 µF 73 dB www.national.com 4 |
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Descripción similar - LM4938 |
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