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TSC2102 Arkusz danych(PDF) 5 Page - Texas Instruments |
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TSC2102 Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 54 page TSC2102 SLAS379A− APRIL 2003 − REVISED JUNE 2004 www.ti.com 5 ELECTRICAL CHARACTERISTICS (continued) At +25 °C, AVDD,DRVDD,IOVDD = 3.3 V, DVDD = 1.8 V, Int. Vref = 2.5 V, Fs (Audio) = 48 kHz, unless otherwise noted (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS POWER SUPPLY REQUIREMENTS Power supply voltage AVDD 2.7 3.6 V DRVDD 2.7 3.6 V IOVDD 2.7 3.6 V DVDD 1.525 1.95 V Touch-screen ADC quiescent current IAVDD, host controlled AUX conversion at 10 ksps with external reference 45 A Touch-screen ADC quiescent current IDVDD, host controlled AUX conversion at 10 ksps 65 µA Analog supply current – Audio play back only IAVDD + IDRVDD, headphone driver bypassed, VGND off, PLL off, no signal 2.1 mA Analog supply current – Audio play back only IAVDD + IDRVDD, headphone driver and VGND on, PLL off, no signal 7.1 mA Digital supply current – Audio play back only 48 ksps, PLL off, no signal 2.2 mA PLL current IDRVDD 1 mA PLL current IDVDD 0.8 mA Total current Hardware power down. All digital inputs at 0 V or IOVDD. 5 µA (1) DAC PSRR measurement is calculated as: PSRR + 20 log 10 VSIGsup V HPR L where VSIGsup is the ac signal applied on AVDD, which is 100 mVPP at 1 kHz, and VHPR/L is the peak-to-peak ac signal seen on HPR and HPL outputs. |
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