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SX8657 Datasheet(PDF) 6 Page - Semtech Corporation

Part # SX8657
Description  Haptics Enabled 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8657 Datasheet(HTML) 6 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 25
th July 2011
6
www.semtech.com
SX8657/SX8658
Haptics Enabled 4/5-Wire
Resistive Touchscreen Controller with Proximity Sensing
1.3
Pin Description
Name
Type
Description
VDD
P
Main Power Supply
GND
P
Main Ground
VREG
P
Internal Regulator Output (must be connected to an external capacitor; see §13)
MVDD
P
Haptics Motor Power Supply
MGND
P
Haptics Motor Ground (must be electrically connected to GND)
MOUTP
AO
Haptics Motor Positive Drive
MOUTN
AO
Haptics Motor Negative Drive
MIN
DI
Haptics Motor PWM/Clock Input
X+/BR
A
• 4-wire Touchscreen : X+ Electrode
• 5-wire Touchscreen : Bottom Right (BR) Electrode
Y+/TR
A
• 4-wire Touchscreen : Y+ Electrode
• 5-wire Touchscreen : Top Right (TR) Electrode
X-/TL
A
• 4-wire Touchscreen : X- Electrode
• 5-wire Touchscreen : Top Left (TL) Electrode
Y-/BL
A
• 4-wire Touchscreen : Y- Electrode
• 5-wire Touchscreen : Bottom Left (BL) Electrode
AUX1/WIPER
D/A
• 4-wire Touchscreen : First Programmable Auxiliary Function (see §9)
• 5-wire Touchscreen : WIPER Electrode
AUX2
D/A
Second Programmable Auxiliary Function (see §9)
AUX3
D/A
Third Programmable Auxiliary Function (see §9)
ADDR
DI
I2C Address Selection (QFN only, internally connected to GND on CSP)
SCL
DI
I2C Clock Input
SDA
DIO
I2C Data Input/Output
NIRQ
DO
Interrupt Output (active low)
NRST
DI
Reset Input (active low)
A/D/I/O/P: Analog/Digital/Power/Input/Output
Table 1 – Pin Description
1.4
Block Diagram
Figure 5 – SX8657 Block Diagram


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