ADBS-A350

ADBS-A350 Datasheet

ADBS-A350 Optical Finger Navigation

Part	Datasheet
ADBS-A350	ADBS-A350 (pdf)

PDF Datasheet Preview
ADBS-A350 Optical Finger Navigation Data Sheet The ADBS-A350 sensor is a small form factor SFF LED illuminated optical finger navigation system. It is a lowpower optical finger navigation sensor 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. 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 sensor 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. 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 sensor. 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 and relative displacement values. The host reads the and information from the sensor serial port if a motion interrupt is published. The microcontroller then translates the data into cursor navigation, rocker switch, scrolling or other system dependent navigation data. • 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 V supply voltage for analog and digital • Internal power up reset POR • Selectable Input/Output voltage at 1.8V or 2.8V nominal • 4-wire Serial peripheral interface SPI or Two-wire interface TWI • Integrated chip-on-board LED with wavelength of 870 nm • Finger input devices • Mobile devices • Integrated input devices • Battery-powered input device Avago 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. CAUTION It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD. Pinout of ADBS-A350 Optical Sensor Pin Name 1 GND 2 XY_LED Description Ground XY LED driver connection Input/Output pin 3 EVENT_INT Event Interrupt active low output O CMOS output 4 GPIO General Purpose Input/ Output I Schmitt trigger input / O CMOS output 5 VDDIO Voltage supply for Input/ Output pins 6 IO_MOSI_A0 TWI address set or Master Out Slave In I Schmitt trigger input 7 IO_CLK Serial clock input 8 IO_MISO_SDA TWI serial data or Master In Slave Out 9 IO_NCS_A1 TWI address set or Chip Select I Schmitt trigger input In SPI CMOS output. In TWI open drain I/O I Schmitt trigger input

PDF Datasheet Preview

ADBS-A350 Optical Finger Navigation

Data Sheet

The ADBS-A350 sensor is a small form factor SFF LED illuminated optical finger navigation system. It is a lowpower optical finger navigation sensor 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.

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 sensor 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.

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 sensor.

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 and relative displacement values.

The host reads the and information from the sensor serial port if a motion interrupt is published. The microcontroller then translates the data into cursor navigation, rocker switch, scrolling or other system dependent navigation data.
• 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 V supply voltage for analog and digital
• Internal power up reset POR
• Selectable Input/Output voltage at 1.8V or 2.8V nominal
• 4-wire Serial peripheral interface SPI or Two-wire
interface TWI
• Integrated chip-on-board LED with wavelength of
870 nm
• Finger input devices
• Mobile devices
• Integrated input devices
• Battery-powered input device

Avago 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.

CAUTION It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD.

Pinout of ADBS-A350 Optical Sensor

Pin Name 1 GND 2 XY_LED

Description Ground XY LED driver connection

Input/Output pin
3 EVENT_INT

Event Interrupt active low output

O CMOS output
4 GPIO

General Purpose Input/ Output

I Schmitt trigger input / O CMOS output
5 VDDIO

Voltage supply for Input/ Output pins
6 IO_MOSI_A0 TWI address set or Master Out Slave In

I Schmitt trigger input
7 IO_CLK

Serial clock input
8 IO_MISO_SDA TWI serial data or Master In Slave Out
9 IO_NCS_A1

TWI address set or Chip Select

I Schmitt trigger input In SPI CMOS output. In TWI open drain I/O I Schmitt trigger input

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ADBS-A350 Datasheet file may be downloaded here without warranties.

Datasheet ID: ADBS-A350 519923