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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SX8661 датащи(PDF) 1 Page - Semtech Corporation |
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SX8661 датащи(HTML) 1 Page - Semtech Corporation |
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1 / 88 page  ADVANCED COMMUNICATIONS & SENSING DATASHEET Revision v3.2, January 2011 © 2011 Semtech Corp. www.semtech.com 1 SX8661 Low Power, Capacitive Button Touch and Proximity Controller (8 sensors) with LED Drivers and Analog Output GENERAL DESCRIPTION The SX8661 is an ultra low power, fully integrated 8- channel solution for capacitive touch-button and proximity detection applications. Unlike many capacitive touch solutions, the SX8661 features dedicated capacitive sense inputs (that requires no external components) in addition to 8 general purpose I/O ports (GPIO). Each of the 8 on-chip GPIO/LED driver is equipped with independent PWM source for enhanced visual effect such as dimming, and breathing. The SX8661 includes a capacitive 10 bit ADC analog interface with automatic compensation up to 100pF. The high resolution capacitive sensing supports a wide variety of touch pad sizes and shapes and allows capacitive buttons to be created using thick overlay materials (up to 5mm) for an extremely robust and ESD immune system design. The SX8661 incorporates a versatile firmware that was specially designed to simplify capacitive touch solution design and offers reduced time-to-market. Integrated multi-time programmable memory provides the ultimate flexibility to modify key firmware parameters (gain, threshold, scan period, auto offset compensation) in the field without the need for new firmware development. The SX8661 supports the 400 kHz I²C serial bus data protocol and includes a field programmable slave address. The tiny 4mm x 4mm footprint makes it an ideal solution for portable, battery powered applications where power and density are at a premium. TYPICAL APPLICATION CIRCUIT KEY PRODUCT FEATURES Complete 8 Sensors Capacitive Touch-Button Solution o Up to 8 LED Drivers for individual Visual Feedback with Auto Lightening o Configurable Single or Continuous Fading Mode o 256 steps PWM Linear and Logarithmic control Proximity Sensing up to several centimetres High Resolution Capacitive Sensing o Up to 100pF of Offset Cap. Compensation at Full Sensitivity o Capable of Sensing up thru 5mm thick Overlay Materials Up to 2 Analog Output Interfaces (AOI-A and AOI-B) o Enable button detection thru host’s ADC Support of buzzer for audible feedback User-selectable Button Reporting Configuration o Report Single or Report Strongest Extremely Low Power o 8uA (typ) in Sleep Mode o 70uA (typ) in Doze Mode (195ms) o 200uA (typ) in Active Mode (30ms) Programmable Scanning Period from 15ms to several seconds Auto Offset Compensation o Eliminates false triggers due to environmental factors (temperature, humidity) o Initiated on power-up and configurable intervals Multi-Time In-Field Programmable Firmware Parameters for Ultimate Flexibility o On-chip user programmable memory for fast, self contained start-up No External Components per Sensor Input Internal Clock Requires No External Components Differential Sensor Sampling for Reduced EMI Optional 400 KHz I²C Interface with Programmable Address -40°C to +85°C Operation APPLICATIONS LCD TVs, Monitors White Goods Notebook/Netbook/Portable/Handheld computers Consumer Products, Instrumentation, Automotive Mechanical Button Replacement ORDERING INFORMATION Part Number Temperature Range Package SX8661I07AULTRT 1 -40°C to +85°C Lead Free MLPQ-UT28 1 3000 Units/reel * This device is RoHS/WEEE compliant and Halogen Free |
Аналогичный номер детали - SX8661 |
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Аналогичное описание - SX8661 |
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