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ADBL-A321 Arkusz danych(PDF) 1 Page - Pixart Imaging Inc. |
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ADBL-A321 Arkusz danych(HTML) 1 Page - Pixart Imaging Inc. |
1 / 16 page 1 PixArt Imaging Inc. ADBS-A350 General Datasheet Optical Finger Navigation Chip PixArt Imaging Inc. http://www.pixart.com All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission. Version 1.0 | 05 Sep 2016 | 11010AEN ADBS-A350: Optical Finger Navigation Chip Description The ADBS-A350 chip is a small form factor (SFF) LED illuminated optical finger navigation system. It is designed with low-power architecture and automatic power management modes, making it ideal for battery- and power-sensitive applications such as mobile phones. The ADBS-A350 is capable of high-speed motion detection– up to 20 ips. In addition, it has an on-chip oscillator and integrated LED to minimize external components. The chip is programmed via registers through either a serial peripheral interface or a two wire interface port. It is packaged in a 28 I/O surface mountable package. There are no moving parts, thus provide high reliability and less maintenance for the end user. In addition, precision optical alignment is not required, facilitating high volume assembly. The ADBS-A350 is designed for use with ADBL-A321 lens. The ADBL-A321 lens is the optical component necessary for proper operation of the chip. Theory of Operation The ADBS-A350 is based on Optical Finger Navigation (OFN) Technology, which measures changes in position by optically acquiring sequential surface images (frames) and mathematically determining the direction and magnitude of movement. The ADBS-A350 contains an Image Acquisition System (IAS), a Digital Signal Processor (DSP), and a communication system. The IAS acquires microscopic surface images via the lens and illumination system. These images are processed by the DSP to determine the direction and distance of motion. The DSP calculates the Δx and Δy relative displacement values. The host reads the Δx and Δy information from the chip serial port if a motion interrupt is published. The microcontroller then translates the data into cursor navigation, rocker switch, and scrolling or other system dependent navigation data. Features Low power architecture Surface mount technology (SMT) device Self-adjusting power-saving modes for longer battery life High speed motion detection up to 20 ips Self-adjusting frame rate for optimum performance Motion detect interrupt Finger detect interrupt Soft click and Tap detect interrupt Single Interrupt pin Optional PWM output for LED illumination Optional switch input for center click function Internal oscillator – no clock input needed Selectable 125, 250, 500, 750, 1000 and 1250 cpi resolution Single 1.8 V supply voltage for analog and digital Internal power up reset (POR) Selectable Input/Output voltage at 1.8 V or 2.8 V nominal 4-wire Serial peripheral interface (SPI) or Two-wire interface (TWI) Integrated chip-on-board LED with wavelength of 870 nm Applications Finger input devices Mobile devices Integrated input devices Battery-powered input device Ordering Information Part Number Type ADBS-A350 28-pin SMD ADBL-A321 Lens PixArt customers purchasing the ADBS-350 OFN product are eligible to receive a royalty free license to our US patents 6977645, 6621483, 6950094, 6172354 and 7289649, for use in their end products. |
Podobny numer części - ADBL-A321 |
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Podobny opis - ADBL-A321 |
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