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PDF VT5363 Data sheet ( Hoja de datos )
| Número de pieza | VT5363 | |
| Descripción | Single-chip USB/PS2 optical mouse | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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VT5363
Single-chip USB/PS2 optical mouse
Preliminary Data
Features
■ 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).
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
Order codes
Part Number
VT5363V032
Description
USB/PS2 optical mouse sensor
April 2006
Rev 2
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
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1 page  
VT5363
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
VT5363 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
VT5363 pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
VT5363 reference schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
VT5363 optical centre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
VT5363 orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
STV-363-R01 - USB/PS2 mouse reference design board . . . . . . . . . . . . . . . . . . . . . . . . . 15
Lens and light guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2D assembly drawing of VT5363 (exploded view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Typical resolution versus height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
LQFP32 clear resin body 7.0 x 7.0 x 1.40 foot print 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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VT5363
Design notes
2.7 Driving the navigation LED
The VT5363 provides an output (NAV_LED) for driving the LED used to illuminate the
mousing surface. This output is active HIGH but cannot be used to drive the navigation LED
directly. An external NPN bipolar transistor is recommended as shown in the reference
schematic. The maximum current through the LED is controlled by a resistor (R1 on the
Reference Schematic).
2.8 LNK_LED output
The VT5363 has an output (LNK_LED) which is high whenever the mouse is active (i.e.
connected to a PC which is not in a suspend state).
The user does not need to use this output to produce a working mouse but it may be used to
drive an additional LED for cosmetic purposes. An external bipolar transistor is required in
the same way as the navigation LED.
2.9 Optical centre
The optical centre of the VT5363 is NOT in the centre of the package, it is offset by -
0.243mm in the X-axis and 0.215mm in the Y axis with respect to the centre of the package
as shown below. The PCB designer must take this into account when laying out the PCB.
Figure 4. VT5363 optical centre
pin 1 marking
Optical centre (-0.243mm, +0.215mm)
mechanical centre
of package (0,0)
TOP VIEW OF VT5363
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| PDF Descargar | [ Datasheet VT5363.PDF ] | |
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