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LM49352 Datasheet(PDF) 13 Page - Texas Instruments |
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LM49352 Datasheet(HTML) 13 Page - Texas Instruments |
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13 / 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) AUXILIARY OUTPUT/EARPIECE AMPLIFIER AUX_LINE_OUT, f = 1kHz From Mono In 0.002 % RL = 5kΩ, VOUT = 1VRMS THD+N Total Harmonic Distortion Earpiece mode, f = 1kHz From Mono In 0.02 % RL = 32Ω BTL, POUT = 20mW Earpiece mode, f = 1kHz POUT Output Power 58 50 mW (min) RL = 32Ω BTL, THD+N = 1% VRIPPLE = 200mVP-P, fRIPPLE = 217Hz Mono Input terminated, CREF = 1.0μF 100 dB AUX_LINE_OUT PSRR Power Supply Rejection Ratio VRIPPLE = 200mVP-P, fRIPPLE = 217Hz Mono Input terminated, CREF = 1.0μF 100 90 dB Earpiece mode, –6dB cut enabled Gain = 0dB, VREF = VOUT (1% THD+N) SNR Signal to Noise Ratio 105 dB A-weighted, Mono Input Terminated Gain = 0dB, VREF = VOUT (1% THD+N) ∈OUT Output Noise 7 μV A-weighted, Mono Input Terminated MONO gain = 0dB, From Mono Input 4 mV AUX_LINE_OUT VOS Output Offset Voltage Gain = 0dB, From Mono Input 4 12 mV (max) Earpiece mode TWU Turn-On time PMC Clock = 300kHz 28 ms STEREO ADC Mono Differential Input THD+NADC ADC Total Harmonic Distortion + Noise VIN = 1VRMS, f = 1kHz 0.007 % Gain = 0dB, fS = 48kHz HPF On, fS = 48kHz 220 Hz Lower -3dB Point PBADC ADC Passband HPF On, Upper -3dB Point 0.41*fS kHz RADC ADC Ripple OSRDAC = 128 0.1 dB Reference = VOUT (0dBFS ) Gain = 6dB, 98 dB A-weighted From MIC, fS = 8kHz SNRADC ADC Signal to Noise Ratio Reference = VOUT (0dBFS ) Gain = 0dB, 97 dB A-weighted From Stereo Input, fS = 48kHz ADCLEVEL ADC Full Scale Input Level 1.6 VRMS STEREO DAC I2S Input, AUXOUT, OSRDAC = 64 THD+NDAC DAC Total Harmonic Distortion + Noise VIN = 500mFFSRMS, f = 1kHz 0.01 % Gain = 0dB DACLEVEL DAC Full Scale Output Level 1.08 VRMS RDAC DAC Ripple 0.1 dB PBDAC DAC Passband Upper –3dB Point 0.45*fS kHz SNRDAC DAC Signal to Noise Ratio fS = 48kHz, A-weighted, AUXOUT 103 dB Copyright © 2009–2013, Texas Instruments Incorporated Submit Documentation Feedback 13 Product Folder Links: LM49352 |
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