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TSC2101 数据表(PDF) 4 Page - Texas Instruments |
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TSC2101 数据表(HTML) 4 Page - Texas Instruments |
4 / 93 page TSC2101 SLAS392D− JUNE 2003 − REVISED MAY 2005 www.ti.com 4 ELECTRICAL CHARACTERISTICS At +25°C, AVDD1, AVDD2, DRVDD, IOVDD = 3.3 V, BVDD = 3.9 V, DVDD = 1.8 V, Vref = 2.5 V, Fs (Audio) = 48 kHz, unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNITS TOUCH SCREEN AUXILIARY ANALOG INPUT Input voltage range 0 +VREF V Input capacitance AUX1/2 input selected as input by touch-screen 25 pF Input leakage current AUX1/2 input selected as input by touch screen ±1 µA BATTERY MONITOR INPUTS Input voltage range 0.5 6.0 V Input leakage current Battery conversion not selected ±1 µA Accuracy Variation across temperature after system calibration at 4 V battery voltage and room temperature ±15 mV TOUCH SCREEN A/D CONVERTER Resolution Programmable: 8-, 10-,12-bits 8 12 Bits No missing codes 12-Bit resolution 11 Bits Integral nonlinearity −5 5 LSB Offset error −6 6 LSB Gain error −6 6 LSB Noise 50 µVrms VOLTAGE REFERENCE (VREF) VREF output programmed = 2.5 V 2.3 2.5 2.7 V Voltage range VREF output programmed = 1.25 V 1.25 V Voltage range External reference 1.1 2.5 V Reference drift Internal VREF = 1.25 V 50 ppm/°C Current drain Extra current drawn when the internal reference is turned on. 750 µA AUDIO CODEC ADC DECIMATION FILTER CHARACTERISTICS Filter gain from 0 to 0.39 Fs ±0.1 dB Filter gain at 0.4125 Fs −0.25 dB Filter gain at 0.45 Fs −3.0 dB Filter gain at 0.5 Fs −17.5 dB Filter gain from 0.55 Fs to 64 Fs −75 dB Group delay 17/Fs sec |
类似零件编号 - TSC2101_07 |
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类似说明 - TSC2101_07 |
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