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AT42QT2100 Datasheet(PDF) 34 Page - ATMEL Corporation |
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AT42QT2100 Datasheet(HTML) 34 Page - ATMEL Corporation |
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34 / 44 page  34 AT42QT2100 [DATASHEET] 9554E–AT42–01/13 6.8 Signal Processing 6.9 Power Consumption 6.9.1 Spread Spectrum Disabled Figure 6-3. Idd Curve Vdd = 5.0V, Cs keys = 4.7 nF, Cs slider/wheel = 15 nF; circuit of Figure 1-1 Description Min Units Notes Detection threshold (keys) 10 counts Threshold for increase in Cx load Detection threshold (slider/wheel) 30 counts Changeable through SPI Detection hysteresis (keys) 2 counts Detection hysteresis (slider/wheel) 5 counts 25 percent of slider/wheel detection threshold DI filter, start of touch, normal mode 6 samples Must be consecutive or detection fails DI filter, start of touch, fast DI mode 2 samples Must be consecutive or detection fails Table 6-1. Power Consumption ( µA) Vdd LP Mode 2V 3.3 V 5V 0 950 1940 4350 1 190 420 1050 2 95 205 640 3 60 120 320 4 40 80 200 Sleep 15 18 22 Note: Power measurements taken 4.7 nF capacitors on the keys and 15 nF capacitors on the slider electrodes. 0 1000 2000 3000 4000 5000 01 234 LP Mode Vdd = 2V Vdd = 3.3V Vdd = 5V |
Similar Part No. - AT42QT2100_14 |
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Similar Description - AT42QT2100_14 |
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