USBULC6-2F3_08 Datasheet, PDF (1/23 Pages) STMicroelectronics – 2-line IPAD, ultra low capacitance protection for high speed USB

VT5363
Single-chip USB/PS2 optical mouse
Features
■ Suitable for use with both LED and laser
(VCSEL) light sources
■ Single chip design with minimal support
circuitry
■ USB and PS2 operation
■ Single +5 V supply
■ No mechanical moving parts required
■ 800 cpi resolution (400 cpi selectable)
■ 9600 frames per second
■ Tracking at up to 40 ips
■ Up to 5 switch inputs and scroll wheel
■ Possible customizing for VID, PID and
descriptor string with external EEPROM
■ Proven, high volume package technology
Description
The VT5363 optical tracking sensor is a complete
solid state tracking engine with no moving parts.
This single chip optical mouse sensor provides
excellent control and precision and works on a
wide range of surfaces.
The VT5363 supports 2, 3 or 5 button mouse
designs with a mechanical scroll wheel encoder. It
contains a dual USB/PS2 interface with automatic
interface selection and may be powered directly
from the USB or PS2 port. A single 6MHz
resonator provides all the clock requirements and
a minimum of additional passive components are
required.
An external EEPROM may be used to implement
customer specific USB configurations (PID, VID
and descriptor string).
The VT5363 sensor operates over a wide range
of illuminant wavelengths. For devices operating
at approximately 850nm (IR LED or VCSEL), the
on-die automatic exposure controller (AEC)
compensates for the change in sensitivity
compared to 640nm (red LED). Motion
performance can be improved by increasing the
current supplied to the navigation LED.
A specifically designed optical system with
integrated light guide and lens is available. This
has been optimized for low cost, space saving
and ease of mouse manufacture. No kapton tape
is required in the assembly process.
Applications
■ Optical USB/PS2 mouse for desktop PC,
workstation and laptop
Technical specifications
Resolution
800 CPI (400 selectable)
Pixel size
30.4 µm
Array size
20*20 pixels
Frame rate
9600 frames/second
High Speed
Accurate motion up to 40 ips
Motion Detector
Clock
6 MHz resonator
Supply voltage
5V
direct from USB or PS2 port
Supply current
15mA (typ.)
(excludes LED)
Operating
temperature
[0: 60] °C
Package type
7*7mm 32 lead LOQFP⁽¹⁾
1. LOQFP: Low profile Optical Quad Flat Pack
January 2007
Rev 4
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www.st.com
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