SX9512/12B/13/13B
8 Capacitive Buttons, LEDs and
Proximity Controller with Analog Outputs
WIRELESS & SENSING PRODUCTS
G
ENERAL
D
ESCRIPTION
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.
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.
Whenever the capacitive value changes from
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.
The SX9512/12B and SX9513/13B 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 B versions have a different pre-programmed
I2C address.
DATASHEET
K
EY
P
RODUCT
F
EATURES
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)
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
2-Channel Analog Output, 6-bit DAC Programmable
Control
Programmable Buzzer
2
Simple (400kHz) I C Serial Interface
o
Interrupt Driven Communication via NIRQ Output
Power-On Reset, NRST Pin and Soft Reset
Low Power
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
The SX9512/12B and SX9513/13B are offered in
4.4 mm x 7.8 mm, 24-lead TSSOP package
20-ld QFN and 24-ld TSSOP packages and operate
over an ambient temperature range of -40°C to
Pb & Halogen free, RoHS/WEEE compliant
+85°C.
A
PPLICATIONS
T
YPICAL
A
PPLICATION 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
PWRON
BL1
CONTROL
NRST
SPO2
AOUT2/
NIRQ/
BUZZER/
PWRSTATE
AOUT1
ANALOG
OUTPUT
SVDD
BL2
GPO/LED
ENGINE
TOUCH
BUTTON &
LED
DRIVER
INTERFACE
BL3
SPO1
POR
BL4
BL5
OSC
BL6
I2C
NVM
BL7
SDA
SCL
LS
GND
O
RDERING
I
NFORMATION
Part Number
Package
1
SX9513EWLTRT
QFN-20
2
SX9513ETSTRT
TSSOP-24
1
SX9512EWLTRT
QFN-20
2
SX9512ETSTRT
TSSOP-24
1
SX9513BEWLTRT
QFN-20
2
SX9513BETSTRT
TSSOP-24
1
SX9512BEWLTRT
QFN-20
2
SX9512BETSTRT
TSSOP-24
SX9510EVK
Evaluation Kit
1
2
Marking
ZF3A
AC70R
ZH57
AC71S
ZB13
AB13G
Z8CA
AB12F
-
3000 Units/Reel
2500 Units/Reel
Revision v1.13, February 2013
© 2013 Semtech Corp.
1
www.semtech.com
SX9512/12B/13/13B
8 Capacitive Buttons, LEDs and
Proximity Controller with Analog Outputs
WIRELESS & SENSING PRODUCTS
DATASHEET
Table of Contents
G
ENERAL
D
ESCRIPTION
........................................................................................................................ 1
T
YPICAL
A
PPLICATION CIRCUIT
............................................................................................................ 1
K
EY
P
RODUCT
F
EATURES
..................................................................................................................... 1
A
PPLICATIONS
....................................................................................................................................... 1
O
RDERING
I
NFORMATION
...................................................................................................................... 1
1
1.1
1.2
1.3
1.4
1.5
1.6
G
ENERAL
D
ESCRIPTION
............................................................................................................... 4
Pin Diagram
Marking information SX9513/13B
Marking information SX9512/12B
Pin Description
Simplified Block Diagram
Acronyms
4
4
5
7
8
8
2
2.1
2.2
2.3
2.4
E
LECTRICAL
C
HARACTERISTICS
................................................................................................. 9
Absolute Maximum Ratings
Recommended Operating Conditions
Thermal Characteristics
Electrical Specifications
9
9
9
10
3
F
UNCTIONAL DESCRIPTION
........................................................................................................ 12
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
Introduction
Scan Period
Operation modes
Sensors on the PCB
Button Information
Buzzer
Analog Output Interface
Analog Sensing Interface
Configuration
Clock Circuitry
I2C interface
Interrupt
Reset
LEDS on BL
12
13
14
14
15
16
16
18
21
21
21
21
23
25
4
4.1
4.2
4.3
4.4
4.5
4.6
D
ETAILED
C
ONFIGURATION DESCRIPTIONS
.............................................................................. 29
Introduction
General Control and Status
LED Control
CapSense Control
SPO Control
Buzzer Control
© 2013 Semtech Corp.
2
29
31
34
38
43
44
www.semtech.com
Revision v1.13, February 2013
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