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In addition, the SPI port should not be accessed during power down.

Note that the PCB motion due to button presses must be minimized to maintain optical alignment. The IAS acquires microscopic surface images via the lens and illumination system. Minimum Pixel value in current frame. The table below shows the state of the various pins during power-up and reset. Reading clears the register. All data bits can be read with no delay between bytes by driving SCLK at the normal rate.

The maximum pixel value can vary with every frame. This register contains a unique identification assigned q320 the ADNS The table below shows the state of various pins during power down. There are no moving parts, which means high reliability and less maintenance for the end user. Data subject to change. They should be read consecutively. The serial port is not available for use until it acago reset with NCS, even for a second burst transmission.

This feature should not be used for power management during normal mouse motion. SQUAL is typically maximized when the navigation surface is at the optimum distance from the imaging lens the nominal Zheight.


For product information and a complete list of distributors, go to our website: Mouse sensor resolution and power down settings can be accessed or to be edited by this register.

Maximum Pixel value in current frame. The minimum pixel value can vary with every frame.

Sensor Series: ADBS-A Optical Finger Navigation New and original

The graph below shows sequentially acquired SQUAL values, while a sensor was moved slowly over white paper. Any write to this register will reset and arm the grabber to grab pixel 0 on the next image.

To improve communication reliability, all serial transactions should be framed by NCS. The fixture should be designed to expose the sensor leads to solder while shielding the optical aperture from direct solder contact.

It can be in either state if the sensor is the only device in addition to the controller microprocessor. Register 0x02 allows the user to determine if motion has occurred since the last time it was read. The maximum accumulator value is 28, but only bits [ Brands Line Card Manufacturers.

The shutter is adjusted to keep the average and maximum pixel values within normal operating ranges. Absolute value is determined by resolution. Remove the protective kapton tape from optical aperture of the sensor.

Avago Technologies US, Inc. ADBS-A320

Distance from lens reference plane to tracking surface Z. Block diagram of ADNS optical mouse sensor. The second byte contains the data. The shutter value is automatically adjusted. Write operations to RM1 and RM0 forces the sensor into rest mode. The value in this register does not change; it can be used to verify that the serial communications link is functional.


Avqgo to hold the PCB first vertically for the kapton removal process. This register is the accumulated pixel value from the last image taken.

Synchronous Serial Port The synchronous serial port is used to set and read parameters in the ADNS, and to read out the motion information.

Forced Rest has a long wakeup time and should not be used for power management during normal mouse motion. Sectional view of PCB assembly highlighting optical mouse components. Any register settings must then be reloaded. NCS can also be used to reset the serial port in case of an error.

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We will gladly help you locate any Electronic or Electrical Parts. Bursts are terminated when NCS is raised. The minimum is 0. Squal White paper 90 Squal value 80 70 60 50 40 30 20 10 0 1 Count Figure No load on MISO. The maximum register value is Consignment and warehousing available. Each mode has a different motion detection period, affecting response time to mouse motion Response Time.

Typical Distance Millimeters Creepage An external microcontroller reads the Dx and Dy information from the sensor serial port. The data are latched into the output buffer after the last address bit is received.