SX9510/11
8 Capacitive Buttons, LEDs, IR Decoder and
Proximity Controller with Analog Outputs
WIRELESS & SENSING PRODUCTS
DATASHEET
G
ENERAL
DESCRIPTION
KEY PRODUCT FEATURES
The SX9510 and SX9511 are 8–button capacitive
touch sensor controllers that include 8-channels of
LED drivers, a buzzer, an IR detector and analog
outputs designed ideally for TV applications. The
SX9510 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
´ 8 - Button Capacitance Controller
o Capacitance Offset Compensation to 40pF
o Adaptive Measurements For Reliable Proximity And
Button Detection
The SX9510 and SX9511 operate autonomously
using a set of programmable button sensitivities &
thresholds, plus LED intensities & breathing
functions with no external I2C communication
required.
´ Proximity Sensing (SX9510)
o High Sensitivity
All devices feature three individual LED driver
engines for advanced LED lighting control. On the
SX9510, 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.
o LEDs Activated During Proximity Sense
´ 8-channel LED Controller & Driver
o Blink And Breathing Control
o High Current, 15 mA LED Outputs
´ 2-Channel Analog Output, 6-bit DAC Programmable
Whenever the capacitive value changes from Control
either proximity detection or finger
a
´ Support Metal Overlay UI Design (SX9510)
´ Infra Red Detector for Power-On signaling and LED
feedback
touch/release, the controller informs the host
processor through the analog output(s) or an open
drain interrupt and an I2C register read.
o programmable address with eight commands
o compatible with NEC, RC5, RC6, Toshiba, RCA, etc
´ Simple (400kHz) I2C Serial Interface
o Interrupt Driven Communication via NIRQ Output
´ Power-On Reset, NRST Pin and Soft Reset
´ Low Power
The SX9510 and SX9511 do not require additional
external dynamic programming support or setting
of parameters and will adapt to humidity and
temperature changes to guarantee correct
touch/no touch information.
The SX9510 and SX9511 are offered in 20-ld QFN
and 24-ld TSSOP packages and operate over an
ambient temperature range of -40°C to +85°C.
o Sleep, Proximity Sensing: 330uA
o Operating: 600uA
´ -40°C to +85°C Operation
´ 4.0 mm x 4.0 mm, 20-lead QFN package
´ 4.4 mm x 7.8 mm, 24-lead TSSOP package
´ Pb & Halogen free, RoHS/WEEE compliant
T
YPICAL
A
PPLICATION CIRCUIT
VDD
SVDD
CAPACITIVE
TOUCH BUTTONS
LED [7:0]
BL0
IRIN
APPLICATIONS
IR-DECODER
PWRON
BL1
BL2
BL3
´ LCD TVs, Monitors
CONTROL
´ White Goods
NRST
AOUT2/
NIRQ/
BUZZER/
PWRSTATE
SPO2
SPO1
´ Consumer Products, Instrumentation, Automotive
´ Mechanical Button Replacement
GPO/LED
ENGINE
TOUCH
BUTTON &
LED
DRIVER
INTERFACE
AOUT1
SVDD
POR
OSC
BL4
BL5
ANALOG
OUTPUT
O
RDERING INFORMATION
Part Number
SX9511EWLTRT1
SX9511ETSTRT2
SX9510EWLTRT1
SX9510ETSTRT2
SX9510EVK
Package
QFN-20
Marking
ZK72
AC72T
ZL73
SDA
SCL
BL6
BL7
I2C
NVM
TSSOP-24
QFN-20
AC73X
-
TSSOP-24
Evaluation Kit
LS
GND
1 3000 Units/Reel
2 2500 Units/Reel
Revision v1.12, November 2012
© 2012 Semtech Corp.
1
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