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LM49352 数据表(PDF) 11 Page - Texas Instruments |
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LM49352 数据表(HTML) 11 Page - Texas Instruments |
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11 / 106 page  LM49352 www.ti.com SNAS467E – MARCH 2009 – REVISED MARCH 2013 Electrical Characteristics A_VDD = LS_VDD = 3.3V; HP_VDD = D_VDD = I/O_VDD = 1.8V (1)(2) (continued) The following specifications apply for RL(LS) = 8Ω, RL(HP) = 32Ω, f = 1kHz, unless otherwise specified. Limits apply for TA = 25°C. LM49352 Units Symbol Parameter Conditions Typical Limit (Limit) (3) (4) fS = 48kHz, Stereo ADCIDD ADC Total Active Current From A_VDD 5.8 mA From D_VDD 1.3 mA fS = 48kHz, Stereo DACIDD DAC Total Active Current From A_VDD 3.1 mA From D_VDD 1 mA Mono/Auxiliary Input Amplifier Mono and AUX Input Amplifiers AUXINIDD 0.6 mA Quiescent Current enabled AUXOUT enabled 0.4 mA Auxiliary Output Amplifier Quiescent AUXOUTIDD Current Earpiece Mode 1.1 mA LOUDSPEAKER AMPLIFIER PO = 970mW, RL = 8Ω, LSEFF Loudspeaker Efficiency 93 % LS_VDD = 4.2V PO = 300mW, f = 1kHz, THD+N Total Harmonic Distortion + Noise 0.03 % RL = 8Ω, Mono Input Signal RL = 8Ω, f = 1kHz, THD+N = 1%, Mono Input Signal LS_VDD = 5V 1.4 W LS_VDD = 4.2V 970 mW LS_VDD = 3.3V 590 510 mW (min) PO Output Power RL = 4Ω, f = 1kHz, THD+N = 1%, Mono Input Signal LS_VDD = 5V 2.4 W LS_VDD = 4.2V 1.65 W LS_VDD = 3.3V 980 mW VRIPPLE = 200mVP-P fRIPPLE = 217Hz Mono Input Terminated 75 60 dB (min) VREF = 1.0μF, Input Referred PSRR Power Supply Rejection Ratio LS Gain = 12dB VRIPPLE = 200mVP-P fRIPPLE = 217Hz 74 dB From DAC, DAC gain = 0dB Reference = VOUT (1% THD+N ) Mono gain = 0dB, A-weighted Mono Input Terminated, LS Gain = 8dB LS_VDD = 4.2V 95 dB LS_VDD = 3.3V 93 88 dB (min) SNR Signal-to-Noise Ratio Reference = VOUT (1% THD+N ) DAC Gain = 0dB, A-weighted fS = 48kHz, OSR = 128 LS Gain = 8dB LS_VDD = 4.2V 91 dB LS_VDD = 3.3V 89 dB eOS Mono gain = 0dB, A-weighted, Output Noise Mono Input Terminated, Input 43 µV Referred VOS Offset Voltage Mono gain = 0dB, from Mono Input 10 50 mV (max) Copyright © 2009–2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: LM49352 |
类似零件编号 - LM49352 |
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类似说明 - LM49352 |
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