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TLV320AIC3104IRHBR Datasheet(PDF) 7 Page - Texas Instruments |
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TLV320AIC3104IRHBR Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 91 page  TLV320AIC3104 www.ti.com SLAS510C – FEBRUARY 2007 – REVISED DECEMBER 2010 ELECTRICAL CHARACTERISTICS At 25°C, AVDD = DRVDD = IOVDD = 3.3 V, DVDD = 1.8 V, fS = 48 kHz, 16-bit audio data (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT AUDIO ADC Input signal level Single-ended 0.707 VRMS SNR Signal-to-noise ratio (1) (2) A-weighted, fS = 48 ksps, 0-dB PGA gain, inputs ac-shorted to ground 80 92 dB Dynamic range (1) (2) fS = 48 ksps; 0-dB PGA gain; 1-kHz, –60-dB full-scale input signal 93 dB THD Total harmonic distortion fS = 48 ksps; 0-dB PGA gain; 1-kHz, –2-dB full-scale input signal –89 –75 dB 217-Hz signal applied to DRVDD 55 PSRR Power-supply rejection ratio dB 1-kHz signal applied to DRVDD 44 Input channel separation 1-kHz, –2-dB full-scale signal, MIC1L to MIC1R –71 dB Gain error fS = 48 ksps; 0-dB PGA gain; 1-kHz, –2-dB full-scale input signal 0.82 dB ADC programmable-gain 1-kHz input tone 59.5 dB amplifier maximum gain ADC programmable-gain 0.5 dB amplifier step size MIC1L/MIC1R inputs routed to single ADC 20 input mix attenuation = 0 dB MIC1L/MIC1R inputs routed to single ADC 80 input mix attenuation = 12 dB Input resistance k Ω MIC2L/MIC2R inputs routed to single ADC 20 input mix attenuation = 0 dB MIC2L/MIC2R inputs routed to single ADC 80 input mix attenuation = 12 dB Input resistance 80 k Ω Input capacitance MIC1/LINE1 inputs 10 pF Input level control minimum 0 dB attenuation setting Input level control maximum 12 dB attenuation setting Input level control attenuation 1.5 dB step size ANALOG PASSTHROUGH MODE MIC1/LIN1 to LINEOUT 330 Input-to-output switch RDS(on) Ω resistance MIC2/LIN2 to LINEOUT 330 Input Signal Level, Differential SNR Signal-to-noise ratio A-weighted, fS = 48 ksps, 0 dB PGA gain, inputs ac-shorted to ground 92 dB THD Total harmonic distortion fS = 48 kHz; 0-dB PGA gain, 1-kHz, –2-dB full-scale input signal –94 dB ADC DIGITAL DECIMATION FILTER, fS = 48 kHz From 0 to 0.39 fS ±0.1 At 0.4125 fS –0.25 Filter gain At 0.45 fS –3 dB At 0.5 fS –17.5 From 0.55 fS to 64 fS –75 Filter group delay 17/fS s MICROPHONE BIAS Programmable setting = 2 V 2 Programmable setting = 2.5 V 2.3 2.455 2.7 Bias voltage V DRVDD – Programmable setting = DRVDD 0.24 Current sourcing Programmable setting = 2.5 V 4 mA AUDIO DAC – DIFFERENTIAL LINE OUTPUT, RLOAD = 10 kΩ (1) Ratio of output level with 1-kHz full-scale sine-wave input, to the output level with the inputs short-circuited, measured A-weighted over a 20-Hz to 20-kHz bandwidth using an audio analyzer. (2) All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may result in higher THD+N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter removes out-of-band noise, which, although not audible, may affect dynamic specification values. Copyright © 2007–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): TLV320AIC3104 |
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