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SH1412 Datasheet Preview

SH1412 Datasheet

Capacitive Touchpad Controller

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SH1412 pdf
SH1412
Capacitive Touchpad Cwwown.DtartaoShleleet4rU.com
for Notebook Applications
HID & SYSTEM MANAGEMENT PRODUCTS
DESCRIPTION
The SH1412 capacitive touchpad
controller uses advanced capacitive
position and motion sensing
algorithms. Just a few low-
tolerance external components are
needed.
The touchpad follows the industry
standard of using multiple lines to
detect the presence of a user’s
finger. Once a finger is in close
proximity to the touchpad, its
position is calculated along with its
pressure on the touchpad surface.
Sophisticated algorithms filter out
any noise from the finger, or from
other sources, such as cell phones.
FEATURES
• Light touch and precise control
• Industry-standard PS/2 interface
• Up to 3 buttons for touchpad
features
• Full wheel mouse support
• Highly resistant to EMI and RFI
noise
• > 500 DPI resolution
APPLICATIONS
• Notebooks/laptops
• Consumer products
• Portable/handheld computers
PIN ASSIGNMENTS
• 80 reports per second
• 5 V operating voltage at 4 mA
• Ideal for Chinese character input
• Protected by issued and pending
US and international patents
• Low-tolerance components; Y5V
capacitors and 5% resistors
• 32-pin LQFP package
• Keyboards
• Instrumentation
The SH1412 appears to the host
system as a standard three-button
mouse; no special driver is
required. If the Semtech driver is
used, more advanced functions
such as edge motion, gestures,
and wheel functionality are
available.
Typically consuming less than
4 mA, the SH1412 is ideal for
battery-operated systems. PS/2®
communication is bidirectional at
10 kbps. The SH1412 returns up
to 100 mouse reports per second,
and is compatible with the standard
two-button mouse protocol and the
standard three-button mouse
protocol. It implements all
commands from and to the system
(as defined in the IBM® PS/2
mouse communication protocol).
24
25
C_EN
CNF1
F_DA
A_CLMP
SW_PWR
SW_PWR
AD
R
32
1
SH1412-FGT
LQFP
17
16
9
8
PS2C
PS2D
NMB
NLB
NRB
VSS
_XOUT
XIN
Semtech and the Semtech logo are marks of
Semtech Corporation. IBM and PS/2 are marks of
IBM Corporation. All other marks belong to their
respective owners.
Copyright ©1999-2005 Semtech Corporation
SH1412 data sheet v1.06 (2005-05-02)
1
www.semtech.com



Semtech
Semtech

SH1412 Datasheet Preview

SH1412 Datasheet

Capacitive Touchpad Controller

No Preview Available !

SH1412 pdf
ORDERING CODE
Package Options
32-pin plastic LQFP
BLOCK DIAGRAM
Other Materials
SH1412 evaluation kit
_RST
Power On Reset
16 Bit Timer
XIN
_XOUT
Oscillator Circuit
Power Management
PS2C
PS2D
PS/2 Communication
SH1412
www.DataSheet4U.com
Pitch
0.8 mm
TA= -20° C to +85° C
SH1412-FGT
Lead (Pb) free; fully RoHS and
WEEE compliant
Type
Evaluation kit
Order number
EVK-SH1412
Switch
Interface
Touchpad
Interface
Buttons
3 left, right, middle
MUX Select &
6 Enable
13 Drive Pins
AD Input
Copyright ©1999-2005 Semtech Corporation
SH1412 data sheet v1.06 (2005-05-02)
2
www.semtech.com


Part Number SH1412
Description Capacitive Touchpad Controller
Maker Semtech
Total Page 14 Pages
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SH1412 pdf
SH1412 Datasheet PDF
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