TSC2101-Audio Codec w/ Integrated Headphone Speaker Amp ...

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SLAS392C− JUNE 2003 − REVISED SEPTEMBER 2004www.ti.comELECTRICAL CHARACTERISTICSAt +25°C, AVDD1, AVDD2, DRVDD, IOVDD = 3.3 V, BVDD = 3.9 V, DVDD = 1.8 V, Vref = 2.5 V, Fs (<strong>Audio</strong>) = 48 kHz, unless otherwise notedPARAMETER TEST CONDITIONS MIN TYP MAX UNITSTOUCH SCREENAUXILIARY ANALOG INPUTInput voltage range 0 +VREF VInput capacitance AUX1/2 input selected as input by touch-screen25 pFInput leakage current±1 µABATTERY MONITOR INPUTSInput voltage range 0.5 6.0 VInput leakage current Battery conversion not selected ±1 µAAccuracyVariation across temperature after systemcalibration at 4 V battery voltage and room±15 mVtemperatureTOUCH SCREEN A/D CONVERTERResolution Programmable: 8-, 10-,12-bits 8 12 BitsNo missing codes 12-Bit resolution 11 BitsIntegral nonlinearity −5 5 LSBOffset error −6 6 LSBGain error −6 6 LSBNoise 50 µVrmsVOLTAGE REFERENCE (VREF)VREF output programmed = 2.5 V 2.3 2.5 2.7Voltage rangeVREF output programmed = 1.25 V 1.25VExternal reference 1.1 2.5 VReference drift Internal VREF = 1.25 V 50 ppm/°CCurrent drainExtra current drawn when the internal reference isturned on.750 µAAUDIO CODECADC DECIMATION FILTER CHARACTERISTICSFilter gain from 0 to 0.39 Fs ±0.1 dBFilter gain at 0.4125 Fs −0.25 dBFilter gain at 0.45 Fs −3.0 dBFilter gain at 0.5 Fs −17.5 dBFilter gain from 0.55 Fs to 64 Fs −75 dBGroup delay 17/Fs sec4
www.ti.comSLAS392C− JUNE 2003 − REVISED SEPTEMBER 2004ELECTRICAL CHARACTERISTICS (continued)At +25°C, AVDD1, AVDD2, DRVDD, IOVDD = 3.3 V, BVDD = 3.9 V, DVDD = 1.8 V, Int. Vref = 2.5 V, Fs (<strong>Audio</strong>) = 48 kHz, unless otherwisenoted (continued)PARAMETER TEST CONDITIONS MIN TYP MAX UNITSMICROPHONE INPUT TO ADCMICIN_HED 1020 Hz sine wave input,Fs = 48 kspsFull-scale input voltage (0 dB) 0.707 VrmsInput common mode 1.5 VSNRMeasured as idle channel noise, 0 dB gain,A-weighted80 90 dBATHD 0.63 Vrms input, 0-dB gain −81 −72 dB217 Hz, 100 mV on AVDD1/2(1) 55 dBPSRR1020 Hz, 100 mV on AVDD1/2(1) 55 dBMute attenuationInput resistanceOutput code with 0.63 Vrms sine wave input at0000H1 kHzOnly ADC on 15 50 kΩADC and Sidetone on 8 16 kΩInput capacitance 10 pFHEADSET MICROPHONE BIASRegister 1DH/Page 2, D7−D8=00 3.3Voltage rangeRegister 1DH/Page 2, D7−D8=01 2.5 VPSRRRegister 1DH/Page 2, D7−D8=1X 2217 Hz, 100 mV on AVDD1/2 55217 Hz, 100 mV on BVDD 741020 Hz, 100 mV on AVDD1/2 551020 Hz, 100 mV on BVDD 74Sourcing current Voltage drop
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PACKAGE OPTION ADDENDUMwww.ti.com4-
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TSC2101-Audio Codec w/ Integrated Headphone Speaker Amp ...

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