SX9512 Datasheet, PDF (1/53 Pages) Semtech Corporation – 8 Capacitive Buttons, LEDs and Proximity Controller with Analog Outputs

WIRELESS & SENSING PRODUCTS
SX9512/12B/13/13B
8 Capacitive Buttons, LEDs and
Proximity Controller with Analog Outputs
DATASHEET
GENERAL DESCRIPTION
KEY PRODUCT FEATURES
The SX9512/12B and SX9513/13B are 8–button
capacitive touch sensor controllers that include 8-
channels of LED drivers, a buzzer and analog
outputs designed ideally for TV applications. The
SX9512/12B offers proximity sensing.
Separate Core and I/O Supplies
o 2.7V – 5.5V Core Supply Voltage
o 1.65V – 5.5V I/O Supply Voltage
Support Metal Overlay UI Design (SX9512/12B)
The SX9512/12B and SX9513/13B operate
autonomously using a set of programmable button
sensitivities & thresholds, plus LED intensities &
breathing functions with no external I2C
communication required.
All devices feature three individual LED driver
engines for advanced LED lighting control. On the
SX9512/12B, a proximity detection illuminates all
LEDs to a pre-programmed intensity. Touching a
button will enable the corresponding LED to a pre-
programmed mode such as intensity, blinking or
breathing.
8 - Button Capacitance Controller
o Capacitance Offset Compensation to 40pF
o Adaptive Measurements For Reliable Proximity And
Button Detection
Proximity Sensing (SX9512/12B)
o High Sensitivity
o LEDs Activated During Proximity Sense
8-channel LED Controller & Driver
o Blink And Breathing Control
o High Current, 15 mA LED Outputs
Whenever the capacitive value changes from
2-Channel Analog Output, 6-bit DAC Programmable
either a proximity detection or finger
touch/release, the controller informs the host
processor through the analog output(s) or an open
drain interrupt and an I2C register read.
Control
Programmable Buzzer
Simple (400kHz) I²C Serial Interface
The SX9512/12B and SX9513/13B do not require ^{o Interrupt Driven Communication via NIRQ Output}
additional external dynamic programming support
Power-On Reset, NRST Pin and Soft Reset
or setting of parameters and will adapt to humidity
and temperature changes to guarantee correct
touch/no touch information.
The B versions have a different pre-programmed
I2C address.
Low Power
o Sleep, Proximity Sensing: 330uA
o Operating: 600uA
-40°C to +85°C Operation
The SX9512/12B and SX9513/13B are offered in ^{4.0 mm x 4.0 mm, 20-lead QFN package}
20-ld QFN and 24-ld TSSOP packages and operate ^{4.4 mm x 7.8 mm, 24-lead TSSOP package}
over an ambient temperature range of -40°C to Pb & Halogen free, RoHS/WEEE compliant
+85°C.
APPLICATIONS
TYPICAL APPLICATION CIRCUIT
CAPACITIVE
TOUCH BUTTONS
LED [7:0]
BL0
VDD
SVDD
SX9512/12B/13/13B
LCD TVs, Monitors
White Goods
Consumer Products, Instrumentation, Automotive
Mechanical Button Replacement
BL1
CONTROL
PWRON
BL2
BL3
BL4
BL5
TOUCH
BUTTON &
LED
DRIVER
INTERFACE
GPO/LED
ENGINE
POR
OSC
ANALOG
OUTPUT
NRST
SPO2
AOUT2/
NIRQ/
BUZZER/
PWRSTATE
SPO1
AOUT1
SVDD
BL6
SDA
I2C
SCL
NVM
BL7
LS
GND
ORDERING INFORMATION
Part Number
SX9513EWLTRT¹
SX9513ETSTRT²
SX9512EWLTRT¹
SX9512ETSTRT²
SX9513BEWLTRT¹
SX9513BETSTRT²
SX9512BEWLTRT¹
SX9512BETSTRT²
Package
QFN-20
TSSOP-24
QFN-20
TSSOP-24
QFN-20
TSSOP-24
QFN-20
TSSOP-24
SX9510EVK
1 _{3000 Units/Reel}
2 _{2500 Units/Reel}
Evaluation Kit
Marking
ZF3A
AC70R
ZH57
AC71S
ZB13
AB13G
Z8CA
AB12F
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Revision v1.13, February 2013
© 2013 Semtech Corp.
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