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SX8660I06AULTRT Datasheet(PDF) 10 Page - Semtech Corporation |
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SX8660I06AULTRT Datasheet(HTML) 10 Page - Semtech Corporation |
10 / 75 page ADVANCED COMMUNICATIONS & SENSING DATASHEET Revision v2.3, June 2010 © 2010 Semtech Corp. www.semtech.com 10 SX8660 Ultra Low Power, Capacitive Button Touch Controller (8 sensors) with Enhanced LED Drivers and Analog Output 3 FUNCTIONAL DESCRIPTION 3.1 Quickstart Application The SX8660 is preconfigured (Quickstart Application) for an application with eight buttons, one Analog Output Interface, one Buzzer output and five LED drivers using various modes of PWM fading. The different fading modes are discussed in later chapters. Table 7 summarises the default configuration of the eight GPIOs available on the SX8660 Quickstart application. GPIO Function Fading Mode Comments 0 LED Single Fading Mode Autolight, mapped on Btn0 1 LED Single Fading Mode Autolight, mapped on Btn1 2 LED Continuous Fading Mode Autolight, mapped on Btn2 3 LED Continuous Fading Mode Autolight, mapped on Btn3 4 LED Repeat Fading Mode Autolight, mapped on Btn4 5 BUZZER Not applicable Buzzer output, 30ms buzzing period, 4KHz for approx. 15ms, 8KHz for approx. 15ms. 6 LED Repeat Fading Mode Autolight, mapped on Btn6 7 AOI-A Not applicable Analog Output Interface A (VDD=3.3V) Btn0: 0.3V Btn1: 0.6V Btn2: 0.9V Btn3: 1.2V Btn4: 1.5V Btn5: 1.8V Btn6: 2.1V Btn7: 2.4V Table 7 Quickstart Application GPIO configuration Implementing a schematic based on Figure 6 will be immediately operational after powering without programming the SX8660 (even without host). The default sensitivity is set to 0x03 for all sensors (assumed sensor area approximately 1 cm 2 covered by 2mm thick acrylic overlay material). Figure 6 Quickstart Application |
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