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The graph below shows sequentially acquired SQUAL values, while a sensor was moved slowly over white paper. It can be in either state if the sensor is the only device in addition to the controller microprocessor. We will gladly help you locate any Electronic or Electrical Parts. When the NCS pin is high, the inputs are ignored and the output is tri-stated.

The IAS acquires microscopic surface images via the lens and illumination system. The serial port is not available for use until it is reset with NCS, even for a second burst transmission. Chip select input active a20. To improve communication reliability, all serial transactions should be framed by NCS.

Register 0x45 allows the user to change or monitor the rest mode configuration of the sensor. In addition, the SPI port should not be accessed during power down.

ADBS-A320 PDF Datasheet浏览和下载

Schematic diagram for interface between ADNS and microcontroller cordless application. The host micro-controller always initiates communication; the ADNS a3220 initiates data transfers. Remove the protective kapton tape from optical aperture of the sensor. The port is a four wire avabo port. The fixture should be designed to expose the sensor leads to solder while shielding the optical aperture from direct solder contact. During power-up there will be a period of time after the power supply is high but before any clocks are available.


It may be described as the full sum divided by 1.

Any write to this register will reset and arm the grabber to grab pixel 0 on the next image. The sensor aperture ring should self-align to the lens. We are well known for our great prices, great selection, and as the leading online source for hard-to-find and avagp electronic component parts. The table below shows the state of the various pins during power-up and reset. A full reset will thus be executed.

Sensors, Transducers – Optical Sensors – Mouse Distributor – EIS LIMITED

Block diagram of ADNS optical mouse sensor. Each mode has a different motion detection period, affecting response time to mouse motion Response Time. The shutter value is automatically adjusted.

The maximum accumulator value is 28, but only bits [ Register 0x02 allows the user to determine if motion has occurred since the last time it was read. The optical position reference for the PCB is avayo by the base plate and lens.

The port is not available for further use until burst-mode is terminated. SQUAL is typically maximized when the navigation surface is at the optimum distance from the imaging lens the nominal Zheight. Recommend not to place the PCB facing up during the entire mouse assembly process.


Units are clock cycles. The second byte contains the data.

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Bursts are terminated when NCS is raised. The speed improvement is achieved by continuous data clocking to or from multiple registers without the need to specify the register address, and by not requiring the normal delay period between data bytes.

It has a new low-power architecture and automatic power management modes, making it ideal for battery, power-sensitive applications — such as cordless input devices. Minimum Pixel value in current frame. The written data byte is not saved.

Recommend to hold the PCB first vertically for the kapton removal process. The minimum is 0. The port pins may be shared with other SPI slave devices. This feature should not be used for power management during normal mouse motion. These images are processed by the DSP to determine the direction and distance of motion. For product information and a complete list of distributors, go to our website: