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LM4856 Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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LM4856 Datasheet(HTML) 5 Page - National Semiconductor (TI) |
5 / 23 page Electrical Characteristics (Notes 2, 8) The following specifications apply for V DD= 3.0V, TA= 25˚C unless otherwise specified. Symbol Parameter Conditions LM4856 Units (Limits) Typical (Note 5) Limits (Notes 6, 11) I DD Supply Current Output modes 1, 2, 3, 4, 5, 6, 7 V IN = 0V; No loads 6.5 10 mA (max) Output modes 1, 2, 3, 4, 5, 6, 7 V IN = 0V; Loaded (Figure 1) 7 11 mA (max) I SD Shutdown Current Output mode 0 0.1 2.0 µA (max) V OS Output Offset Voltage V IN = 0V 5.0 40 mV (max) P O Output Power SPKR OUT;RL =4 Ω THD+N = 1%; f = 1kHz, LM4856LQ 430 mW SPKR OUT;RL =8 Ω THD+N = 1%; f = 1kHz 340 300 mW (min) R OUT and LOUT;RL =32 Ω THD+N = 0.5%; f = 1kHz 22 18 mW (min) THD+N Total Harmonic Distortion Plus Noise SPKR OUT f = 20Hz to 20kHz P OUT = 150mW; RL =8 Ω 0.5 % R OUT and LOUT f = 20Hz to 20kHz P OUT = 10mW; RL =32 Ω 0.5 % N OUT Output Noise A-weighted (Note 10) 29 µV PSRR Power Supply Rejection Ratio SPKR OUT V RIPPLE = 200mVPP; f = 217Hz, C B = 1.0µF All audio inputs terminated into 50 Ω; Output referred Gain (BTL) = 12dB Output Mode 1, 3, 5, 7 58 55 dB (min) Power Supply Rejection Ratio R OUTand LOUT V RIPPLE = 200mVPP; f = 217Hz, C B = 1.0µF All audio inputs terminated into 50 Ω; Output referred Maximum gain setting Output Mode 2, 3 68 60 dB (min) Output Mode 4, 5 60 55 dB (min) Output Mode 6, 7 56 52 dB (min) V IH Logic High Input Voltage 0.7 x V DD V DD V (min) V (max) V IL Logic Low Input Voltage 0.4 GND V (max) V (min) www.national.com 5 |
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