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LM4851 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM4851 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
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4 / 22 page  Electrical Characteristics (Notes 2, 8) (Continued) The following specifications apply for V DD= 5.0V, TA= 25˚C unless otherwise specified. Symbol Parameter Conditions LM4851 Units (Limits) Typical (Note 5) Limit (Note 6) Digital Volume Range (R IN and L IN) Input referred minimum gain Input referred maximum gain -40.5 +6 dB Digital Volume Stepsize 1.5 dB Stepsize Error ±0.5 dB Phone In Volume BTL gain from Phone In to SPKR OUT 6dB Phone In Volume BTL gain from Phone In to R OUT,LOUT 0dB Phone In Input Impedance 20 15 25 k Ω (min) k Ω (max) R IN and LIN 50 37.5 62.5 k Ω (min) k Ω (max) t ES Enable Setup Time (ENB) 20 ns (min) t EH Enable Hold Time (ENB) 20 ns (min) t EL Enable Low Time (ENB) 30 ns (min) t DS Data Setup Time (DATA) 20 ns (min) t DH Data Hold Time (DATA) 20 ns (min) t CS Clock Setup Time (CLK) 20 ns (min) t CH Clock Logic High Time (CLK) 50 ns (min) t CL Clock Logic Low Time (CLK) 50 ns (min) t CLK Clock Frequency DC 10 (min) MHz (max) Electrical Characteristics (Notes 2, 8) The following specifications apply for V DD= 3.0V, TA= 25˚C unless otherwise specified. Symbol Parameter Conditions LM4851 Units (Limits) Typical (Note 5) Limit (Note 6) I DD Supply Current Output mode 7 V IN = 0V; IO =0A 6.2 11 mA (max) Output modes 1, 2, 3, 4, 5, 6 V IN = 0V; IO =0A 4.0 7.0 mA (max) I DD Shutdown Current Output mode 0 0.1 2 µA (max) V OS Output Offset Voltage V IN = 0V 5.0 50 mV (max) P O Output Power SPKR OUT;RL =4 Ω THD+N = 1%; f = 1kHz LM4851LQ 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 25 20 mW (min) www.national.com 4 |
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