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Ultra Low Power Stereo Audio Codec (Rev. A

Ultra Low Power Stereo Audio Codec (Rev. A

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TLV320AIC3204<strong>Ultra</strong> <strong>Low</strong> <strong>Power</strong> <strong>Stereo</strong> <strong>Audio</strong> <strong>Codec</strong>SLOS602A–SEPTEMBER 2008–REVISED OCTOBER 2008www.ti.com5.5.2 ADC <strong>Power</strong> ConsumptionThe tables in this section give recommendations for various <strong>Power</strong>Tune modes. Typical performance andpower-consumption values are listed. <strong>Power</strong>Tune modes that are not supported are marked with an ‘X’.All measurements were taken with the PLL turned off and the ADC configured for single-ended input.5.5.2.1 ADC, <strong>Stereo</strong>, 48kHz, Highest Performance, DVdd = 1.8V, AVdd = 1.8VAOSR = 128, Processing Block = PRB_R1 (Decimation Filter A)5.5.2.2 ADC, <strong>Stereo</strong>, 48kHz, DVdd = 1.8V, AVdd = 1.8VDevice Common Mode Setting = 0.75V Device Common Mode Setting = 0.9VPTM_R1 PTM_R2 PTM_R3 PTM_R4 PTM_R1 PTM_R2 PTM_R3 PTM_R4 UNIT0dB full scale X 375 375 375 X 500 500 500 mV RMSMax. allowed input level w.r.t. X –12 0 0 X –12 0 0 dB full0dB full scalescaleEffective SNR w.r.t. X 78.5 90.7 90.2 X 80.4 92.9 92.7 dBmax. allowed input level<strong>Power</strong> consumption X 11.9 14.2 18.2 X 11.9 14.2 18.2 mWAlternative processing blocks:Processing Block Filter Est. <strong>Power</strong> Change (mW)PRB_R2 A +1.4PRB_R3 A +1.4AOSR = 64, Processing Block = PRB_R7 (Decimation Filter B)Device Common Mode Setting = 0.75V Device Common Mode Setting = 0.9VPTM_R1 PTM_R2 PTM_R3 PTM_R4 PTM_R1 PTM_R2 PTM_R3 PTM_R4 UNIT0dB full scale 375 X 375 X X X 500 X mV RMSMax. allowed input level w.r.t. –2 X 0 X X X 0 X dB full0dB full scalescaleEffective SNR w.r.t. 86.0 X 88.1 X X X 90.4 X dBmax. allowed input level<strong>Power</strong> consumption 8.4 X 11.4 X X X 11.5 X mWAlternative processing blocks:Processing Block Filter Est. <strong>Power</strong> Change (mW)PRB_R8 B +0.7PRB_R9 B +0.7PRB_R1 A +2.0PRB_R2 A +3.4PRB_R3 A +3.45.5.2.3 ADC, <strong>Stereo</strong>, 48kHz, <strong>Low</strong>est <strong>Power</strong> ConsumptionAOSR = 64, Processing Block = PRB_R7 (Decimation Filter B), DVdd = 1.26VPTM_R1 PTM_R3 UNITCM = 0.75V CM = 0.9VAVdd=1.5V AVdd=1.8V0dB full scale 375 500 mV RMSMax. allowed input level w.r.t. 0dB –2 0 dB full scalefull scaleEffective SNR w.r.t. max. allowed 88.0 92.2 dBinput level<strong>Power</strong> consumption 6.0 11.4 mW28 Application InformationSubmit Documentation Feedback

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