Features
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Work with any analog Joystick sensors
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Work with Fujitsu FID-828 ErgoTrac Hall-effect sensors
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Configurable PS/2 and RS-232 interface
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Built-in oscillator, analog and digital circuit
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Advanced motion control algorithm
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Resistor-adjustable motion speed
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Built-in EEPROM to store control parameters and 64 bytes for
the host usage
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Compatible with the IBM and Microsoft two-button and the
Logitech three-button mouse protocols
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Works with standard Windows® mouse drivers
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Small SSOP 20 pin package: 7.8x7.2mm 2.0 Max (LxWxH)
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Ultra low power consumption. 50uA(idle), 360uA(operation) for
10k analog joystick sensor under 3.3V; 110uA (idle), 1mA (operation) for
FID-828 sensor under 5V
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2.2V to 5.5V operating voltage
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Industry temperature range: -40°C to +85°C
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QFN package and Extended temperature range (-40°C to +125°C)
versions are available upon request
Overview
The SK7300 joystick mouse encoder is an easy-to-use single chip
encoder that interfaces any analog joystick sensors such as CTS252 and Fujitsu
FID-828 ErgoTrac Hall-effect sensors. Equipped with an advanced motion
algorithm, the SK7300 offers low power consumption in small footprint package.
The device can be linked through either the serial or PS/2 type mouse port of
the host system.
The SK7300 is compatible with the IBM and Microsoft two-button
and the Logitech three-button mouse protocols. The IC also supports Sprintek
extended mouse protocols to allow the host to control the motion parameters and
other parameters. Communication through the serial port is half-duplex at a
fixed speed of 1200 Baud. PS/2 communication is bidirectional at 10 Kbps. The
SK7300 implements all commands to and from the host system, as defined in the
IBM PS/2 mouse communication protocol.
Typically, consuming 50uA in idle state, the SK7300 is ideal for
battery-operated systems.
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