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LM4935WLX Scheda tecnica(PDF) 9 Page - National Semiconductor (TI) |
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LM4935WLX Scheda tecnica(HTML) 9 Page - National Semiconductor (TI) |
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9 / 112 page  10.0 Electrical Characteristics (Notes 1, 2) Unless otherwise stated PLL_V DD = 3.3V, D_VDD = 3.3V, BB_VDD = 1.8V, A_VDD = 3.3V, LS_VDD = 3.3V. The following specifications apply for the circuit shown in Figure 2 unless otherwise stated. Limits apply for 25˚C. (Continued) Symbol Parameter Conditions LM4935 Units Typical (Note 6) Limit (Note 7) DC CURRENT CONSUMPTION DACI DD DAC Active Current f MCLK = 13MHz, DAC ON only; PLL OFF, f S = 48kHz 7.4 mA f MCLK = 19.2MHz, DAC ON only PLL OFF; f S = 48kHz 10.7 mA SARI DD SAR Active Current f MCLK = 13MHz, SAR ON only 1.6 mA f MCLK = 19.2MHz, SAR ON only 2.3 mA LSI DD Loudspeaker Quiescent Current LS ON only 8.8 mA HPI DD Headphone Quiescent Current HP ON only, SE MODE 3.5 mA HP ON only, OCL MODE 3.9 mA EPI DD Earpiece Quiescent Current EP ON only 4.4 mA AUXI DD AUXOUT Quiescent Current AUXOUT ON only 4.8 mA CPOUTI DD CPOUT Quiescent Current CPOUT ON only 4.8 mA LOUDSPEAKER AMPLIFIER P LS Max Loudspeaker Power 8 Ω load, LS_V DD = 5V 1.3 W 8 Ω load, LS_V DD = 4.2V 0.9 W 8 Ω load, LS_V DD = 3.3V 0.6 0.44 W (min) LS THD+N Loudspeaker Harmonic Distortion 8 Ω load, LS_V DD = 3.3V, P O = 400mW 0.4 % LS EFF Efficiency 0 dB Input MCLK = 12.000 MHz 84 % PSRR LS Power Supply Rejection Ration (Loudspeaker) AUX inputs terminated C BYPASS = 1.0 µF V RIPPLE = 200 mVP-P f RIPPLE = 217 Hz 54 dB SNR LS Signal to Noise Ratio From 0 dB Analog AUX input at 1 kHz, A-weighted 76 dB e N Output Noise A-weighted 350 µV V OS Offset Voltage 7 mV HEADPHONE AMPLIFIER P HP Headphone Power 32 Ω load, 3.3V, SE 33 20 mW (min) 16 Ω load, 3.3V, SE 52 mW 32 Ω load, 3.3V, OCL, VCM = 1.5V 31 mW 32 Ω load, 3.3V, OCL, VCM = 1.2V 20 mW 16 Ω load, 3.3V, OCL, VCM = 1.5V 50 mW 16 Ω load, 3.3V, OCL, VCM = 1.2V 32 mW PSRR HP Power Supply Rejection Ratio (Headphones) AUX inputs terminated C BYPASS = 1.0 µF V RIPPLE = 200 mVP-P f RIPPLE = 217 Hz SE Mode 60 dB OCL Mode VCM = 1.2V 68 dB OCL Mode VCM = 1.5V 65 dB www.national.com 9 |
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