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LM4981 bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI) |
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LM4981 bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI) |
4 / 18 page Absolute Maximum Ratings (Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage 4.5V Storage Temperature −65˚C to +150˚C Input Voltage −0.3V to V DD +0.3V Power Dissipation(Note 3) Internally Limited ESD Susceptibility (Note 4) 2500V ESD Susceptibility (Note 5) 250V Junction Temperature 150˚C Operating Ratings Temperature Range T MIN ≤ T A ≤ T MAX −40˚C ≤ T A ≤ 85˚C Supply Voltage (V DD) 2.0V ≤ V CC ≤ 4.2V Electrical Characteristics V DD =3V (Notes 1, 2) The following specifications apply for V DD = 3V, AV = 1V/V RL =32 Ω, f = 1kHz, unless otherwise specified. Limits apply to T A = 25˚C. Symbol Parameter Conditions LM4981 Units (Limits) Typical (Note 6) Limit (Note 7) I DD Quiescent Power Supply Current V IN = 0V, RL = ∞ 710 mA I DD Standby Power Supply Current 2.3 mA I SD Shutdown Current V SD = GND 0.1 3.5 µA V IH Logic Input Voltage High SHDN, SDM, CLOCK, U/D 0.7V DD V V IL Logic Input Voltage Low SHDN, SDM, CLOCK, U/D 0.3V DD V Digital Volume Input Referred Maximum Gain 12 dB Input Referred Minimum Gain –33 dB Volume Step Size 3 dB Step Size Error ±0.3 dB Channel-to-Channel Volume Tracking Error All gain settings 0.15 dB T WU Wake Up Time 300 µs V OS Output Offset Voltage R L =32 Ω 15 mV P O Output Power THD+N = 1% (max); f = 1kHz, R L =16 Ω, one channel 83 mW THD+N = 1% (max); f = 1kHz, R L =32 Ω, one channel 75 mW THD+N = 1% (max); f = 1kHz, R L =16 Ω, (two channels in phase) 40 33 mW (min) THD+N = 1% (max); f = 1kHz, R L =32 Ω, (two channels in phase) 47 43 mW (min) THD+N Total Harmonic Distortion P O = 60mW, f = 1kHz, RL =16 Ω single channel 0.03 % P O = 50mW, f = 1kHz, RL =32 Ω single channel 0.02 PSRR Power Supply Rejection Ratio V RIPPLE = 200mVP-PSine, f RIPPLE = 1kHz, Inputs AC GND, Cl = 1µF 65 dB V RIPPLE = 200mVP-PSine, f RIPPLE = 10kHz, Inputs AC GND, Cl = 1µF 50 dB V RIPPLE = 200mVP-PSine, f RIPPLE = 217Hz 67 dB ∈ OS Output Noise A-Weighted Filter 11 µV www.national.com 4 |
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