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Semtech |
SH1475
Single-Axis Cwawpw.aDactaiSthievete4U.com
Touch Sensor Controller
HID & SYSTEM MANAGEMENT PRODUCTS
PRELIMINARY
DESCRIPTION
FEATURES
The SH1475 single-axis capacitive
touch sensor controller is a cost-
effective, single-dimension
capacitive position analyzer with a
full-duplex SPI® interface. The
SH1475 is ideal for handheld
devices such as MP3 players.
The SH1475 uses an advanced
algorithm for enhanced motion
control interfacing PCB-based
capacitive sensor. The SH1475
includes a signal conditioning
circuit for a low cost, simple and
real estate-saving implementation.
Just a few additional low-tolerance
external components are needed
for a complete solution.
• Full-duplex SPI Interface
• PCB-based capacitive sensor
• Five switches
• 2.7 V – 5.5 V
APPLICATIONS
• Portable media players
• Portable media centers
PIN ASSIGNMENTS
• Low power consumption: 1 µA in
standby state (typical)
• Royalty-free and cost-effective
• Customization available
• Small 6 mm x 6 mm 36-lead
MLPQ package
• Instruments
• Cell phones
Typically consuming about 1 µA in
the standby state, the SH1475 is
ideal for battery-operated systems.
27
28
nSW4
nWakeUp
MOSI
MISO
SCLK
WAKE
SWPWR
RINT
AD
THERMAL PAD
19
18
NC
E6
E1
E2
E3
VSS
XOUT
XIN
NC
36 10
19
Semtech, the Semtech logo, and Self-Power
Management are marks of Semtech
Corporation. SPI is a mark of Motorola, Inc.
Mylar is a mark of DuPont Teijin Films. All
other marks belong to their respective
owners.
Copyright ©1999-2005 Semtech Corporation
SH1475 data sheet v1.08 (2005-04-21)
1
www.semtech.com
BLOCK DIAGRAM
_RESET
ORDERING CODE
Package Options
36-pin plastic MLPQ (lead free)
Fully RoHS & WEEE compliant
Pitch
0.5 mm
Power On Reset
SH1475
www.DataSheet4U.com
TA= -20° C to +85° C
SH1475IMLTRT
XIN
XOUT
nTxReq
WAKE
MISO
MOSI
SCLK
nWakeUp
nChipSelect
16 Bit Timer
Oscillator Circuit
Power Management
Full-Duplex SPI
Switch Interface
Switches
5
Capacitive Sensor Interface
Control
E1-E6 Input
Sensor Plate
6 Drive Pins
5 Drive Pins
AD Input
Copyright ©1999-2005 Semtech Corporation
SH1475 data sheet v1.08 (2005-04-21)
2
www.semtech.com
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