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LM4930 Arkusz danych(PDF) 10 Page - Texas Instruments |
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LM4930 Arkusz danych(HTML) 10 Page - Texas Instruments |
10 / 40 page LM4930 SNAS212C – JULY 2003 – REVISED MAY 2013 www.ti.com Electrical Characteristics DVDD = 3.3V, AVDD = 5V, RLHP = 32Ω, RLHF = 8Ω (1)(2)(3) (continued) The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for TA= 25°C. LM4930 Units Parameter Test Conditions (Limits) Typ(4) Limits(5)(6) SNR Signal-to-Noise Ratio Signal = Vo at f = 1kHz @1% THD+N, 32 Ω 72 dB (Voice) (Voice DAC Path) Stereo Load; Noise = digital zero, A- weighted, 0dB gain setting SNR Signal-to-Noise Ratio (Music Audio Signal = Vo at f = 1kHz @1% THD+N, 32 Ω 86 dB (Music) Path) Stereo Load; Noise = digital zero, A- weighted; 0dB gain setting DR Dynamic Range (Voice DAC Path) Signal = Vo at f = 1kHz @1% THD+N, 32 Ω 72 dB (Voice) Stereo Load; Noise for -60dBFS digital input; A-weighted; 0dB gain setting DR Dynamic Range (Music Audio Path) Signal = Vo at f=1kHz @1% THD+N, 32 Ω 86 dB (Music) Stereo Load; Noise for -60dBFS digital input; A-weighted, 0dB gain setting SNRADC Signal-to-Noise Ratio Reference signal = 0dBFS 75 dB (Voice ADC Path) MIC_P, MIC_N terminated with 10 Ω to ground; A-weighted; 47dB MIC preamp gain setting DRADC Dynamic Range Reference signal = 0dBFS 75 dB (Voice ADC Path) Noise for -60dBFS digital input; A-weighted; 47dB MIC preamp gain setting XTALK Stereo Channel-to-Channel fS = 48kHz, fIN = 1kHz sinewave at -3dBFS 75 dB Crosstalk VMIC-IN Maximum Differential MIC Input 17dB MIC Preamp gain setting 570 mVP-P Voltage RVDAC Voice DAC Ripple 300Hz - 3.3kHz through head-phone output. +/-0.15 +/-0.2 dB (max) RVADC Voice ADC Ripple 300Hz - 3.3kHz through head-phone output. +/-0.25 +/-0.3 dB (max) PBVDAC Voice DAC Passband -3dB Point 3.46 kHz SBAVDAC Voice DAC Stopband Attenuation Above 4kHz 72 dB UPBVADC Voice ADC Upper Passband Cutoff Upper -3dB Point 3.47 kHz Frequency. LPBVADC Voice ADC Lower Passband Cutoff Lower -3dB Point 0.230 kHz Frequency. SBAVADC Voice ADC Stopband Attenuation Above 4kHz 65 dB SBANOTC Voice ADC Notch Attenuation Centered on 55Hz, figure gives worst case 58 dB H attenuation for 50Hz & 60Hz. RDAC Audio DAC Ripple 20Hz - 20kHz through head-phone output. +/-0.1 +/-0.2 dB (max) PBDAC Audio DAC Passband Width -3dB point 22.7 kHz SBADAC Audio DAC Stopband Attenuation Above 24kHz 76 dB DRDAC Audio DAC Dynamic Range Digital Signal = VO at f = 1kHz @ 1% THD+N; 97 dB Filter Section f = 1kHz; Noise for -60dBFS digital input; 0dB gain; A-weighted SNRDAC Audio DAC SNR Digital Filter Signal = VO at f = 1kHz @ 1% THD+N; 97 dB Section f = 1kHz; Noise for -60dBFS digital input; 0dB gain; A-weighted ΔACH-CH Stereo Channel-to-Channel Gain 0.3 dB Mismatch VIL Digital Input: Logic Low Voltage 0.4 V Level VIH Digital Input: Logic High Voltage 1.4 V Level Volume Control Range (Headphone Maximum Attenuation -46.5 dB amplifiers) Minimum Attenuation 0 dB Volume Control Range (Mono Minimum Gain -34.5 dB speaker amplifier) Maximum Gain 12 dB 10 Submit Documentation Feedback Copyright © 2003–2013, Texas Instruments Incorporated Product Folder Links: LM4930 |
Podobny numer części - LM4930_15 |
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Podobny opis - LM4930_15 |
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