SX9510/11
8 Capacitive Buttons, LEDs, IR Decoder and
Proximity Controller with Analog Outputs
WIRELESS & SENSING PRODUCTS
G
ENERAL
D
ESCRIPTION
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.
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.
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.
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 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.
K
EY
P
RODUCT
F
EATURES
DATASHEET
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
Proximity Sensing (SX9510)
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
Support Metal Overlay UI Design (SX9510)
Infra Red Detector for Power-On signaling and LED
feedback
o
programmable address with eight commands
o
compatible with NEC, RC5, RC6, Toshiba, RCA, etc
Simple (400kHz) I
2
C Serial Interface
o
Interrupt Driven Communication via NIRQ Output
Power-On Reset, NRST Pin and Soft Reset
Low Power
The SX9510 and SX9511 are offered in 20-ld QFN
o
Sleep, Proximity Sensing: 330uA
and 24-ld TSSOP packages and operate over an
o
Operating: 600uA
ambient temperature range of -40°C to +85°C.
-40°C to +85°C Operation
4.0 mm x 4.0 mm, 20-lead QFN package
T
YPICAL
A
PPLICATION CIRCUIT
4.4 mm x 7.8 mm, 24-lead TSSOP package
SVDD
VDD
CAPACITIVE
Pb & Halogen free, RoHS/WEEE compliant
TOUCH BUTTONS
LED [7:0]
BL0
IR-DECODER
BL1
CONTROL
BL2
GPO/LED
ENGINE
TOUCH
BUTTON &
LED
DRIVER
INTERFACE
SPO2
PWRON
IRIN
A
PPLICATIONS
LCD TVs, Monitors
White Goods
Consumer Products, Instrumentation, Automotive
Mechanical Button Replacement
O
RDERING
I
NFORMATION
Part Number
Package
1
SX9511EWLTRT
QFN-20
2
SX9511ETSTRT
TSSOP-24
1
SX9510EWLTRT
QFN-20
2
SX9510ETSTRT
TSSOP-24
SX9510EVK
Evaluation Kit
1
2
NRST
AOUT2/
NIRQ/
BUZZER/
PWRSTATE
AOUT1
BL3
SPO1
POR
ANALOG
OUTPUT
BL4
SVDD
BL5
OSC
BL6
I2C
NVM
BL7
SDA
SCL
LS
GND
Marking
ZK72
AC72T
ZL73
AC73X
-
3000 Units/Reel
2500 Units/Reel
Revision v1.12, November 2012
© 2012 Semtech Corp.
1
www.semtech.com
SX9510/11
8 Capacitive Buttons, LEDs, IR Decoder and
Proximity Controller with Analog Outputs
WIRELESS & SENSING PRODUCTS
Table of Contents
DATASHEET
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 SX9510/11
Marking information SX9511
Marking information SX9510
Pin Description
Simplified Block Diagram
Acronyms
4
4
5
6
7
7
2
2.1
2.2
2.3
2.4
E
LECTRICAL
C
HARACTERISTICS
................................................................................................. 8
Absolute Maximum Ratings
Recommended Operating Conditions
Thermal Characteristics
Electrical Specifications
8
8
8
9
3
F
UNCTIONAL DESCRIPTION
........................................................................................................ 11
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
3.15
Introduction
Scan Period
Operation modes
Sensors on the PCB
Button Information
Buzzer
Analog Output Interface
Analog Sensing Interface
IR Interface
Configuration
Clock Circuitry
I2C interface
Interrupt
Reset
LEDS on BL
11
12
13
13
14
15
15
17
20
22
22
22
23
24
26
4
4.1
4.2
4.3
4.4
4.5
D
ETAILED
C
ONFIGURATION DESCRIPTIONS
.............................................................................. 30
Introduction
General Control and Status
LED Control
CapSense Control
SPO Control
© 2012 Semtech Corp.
2
30
32
35
39
45
www.semtech.com
Revision v1.12, November 2012
SX9510/11
8 Capacitive Buttons, LEDs, IR Decoder and
Proximity Controller with Analog Outputs
WIRELESS & SENSING PRODUCTS
4.6
4.7
4.8
Buzzer Control
IR Control
Real Time Sensor Data Readback
DATASHEET
46
47
49
5
5.1
5.2
I2C I
NTERFACE
........................................................................................................................... 51
I2C Write
I2C read
51
52
6
6.1
6.2
P
ACKAGING
I
NFORMATION
........................................................................................................ 53
Package Outline Drawing
Land Pattern
53
55
Table of Figures
Figure 1 Pinout Diagram SX9510/11 (QFN, TSSOP) ................................................................................................ 4
Figure 2 Marking Information SX9511 (QFN, TSSOP) .............................................................................................. 4
Figure 3 Marking Information SX9510 (QFN, TSSOP) .............................................................................................. 5
Figure 4 Simplified Block diagram of the SX9510/11 ................................................................................................. 7
Figure 5 I2C Start and Stop timing ........................................................................................................................... 10
Figure 6 I2C Data timing .......................................................................................................................................... 10
Figure 7 CapSense Scan Frame SX9510/11 ........................................................................................................... 12
Figure 8 Scan Period SX9510/11............................................................................................................................. 12
Figure 9 Operation modes ....................................................................................................................................... 13
Figure 10 PCB top layer of touch buttons sensors surrounded by the shield, SX9510/11 ...................................... 13
Figure 11 PCB top layer for proximity and touch buttons, SX9510 ......................................................................... 14
Figure 12 Buttons ..................................................................................................................................................... 14
Figure 13 Proximity .................................................................................................................................................. 14
Figure 14 Buzzer behavior ....................................................................................................................................... 15
Figure 15 AOI behavior ............................................................................................................................................ 15
Figure 16 PWM definition, (a) small pulse width, (b) large pulse width ................................................................... 16
Figure 17 Single-mode reporting with 2 touches ..................................................................................................... 16
Figure 18 Strongest-mode reporting with 2 touches ................................................................................................ 17
Figure 19 Analog Sensor Interface .......................................................................................................................... 17
Figure 20 Analog Sensor Interface for SX9510, Combined Channel Prox Mode .................................................... 18
Figure 21 Processing ............................................................................................................................................... 19
Figure 22 IR Interface Overview .............................................................................................................................. 20
Figure 23 Phase Encoding Example (RC5) with Normal Polarity ............................................................................ 21
Figure 24 Phase Encoding Example (RC6) with Inverted Polarity .......................................................................... 21
Figure 25 Space Encoding Example ........................................................................................................................ 21
Figure 26 Configuration ............................................................................................................................................ 22
Figure 27 Power Up vs. NIRQ .................................................................................................................................. 23
Figure 28 Interrupt and I2C ...................................................................................................................................... 24
Figure 29 Power Up vs. NIRQ .................................................................................................................................. 24
Figure 30 Hardware Reset ....................................................................................................................................... 25
Figure 31 Software Reset ........................................................................................................................................ 25
Figure 32 LED between BL and LS pins .................................................................................................................. 26
Figure 33 PWM definition, (a) small pulse width, (b) large pulse width ................................................................... 26
Figure 34 Single Fading Mode ................................................................................................................................. 27
Figure 35 Continuous Fading Mode ......................................................................................................................... 27
Figure 36 LEDs in triple reporting mode proximity ................................................................................................... 29
Figure 37 LEDs in triple reporting mode proximity and touch .................................................................................. 29
Figure 38 I2C write ................................................................................................................................................... 51
Figure 39 I2C read ................................................................................................................................................... 52
Figure 40 QFN Package outline drawing ................................................................................................................. 53
Figure 41 TSSOP Package outline drawing ............................................................................................................ 54
Figure
42 QFN-20 Land Pattern ............................................................................................................................... 55
Revision v1.12, November 2012
© 2012 Semtech Corp.
3
www.semtech.com
SX9510/11
8 Capacitive Buttons, LEDs, IR Decoder and
Proximity Controller with Analog Outputs
WIRELESS & SENSING PRODUCTS
1
1.1
G
ENERAL
D
ESCRIPTION
Pin Diagram SX9510/11
DATASHEET
BL7
GND
VDD
VDD
GND
LS
BL7
BL6
BL5
BL4
BL3
BL2
BL1
BL0
1
2
3
4
5
6
7
8
9
10
11
12
24
VDD
VDD
GND
SPO2
SPO1
IRIN
PWRON
NRST
NC
SCL
SDA
SVDD
LS
SX9510/11
23
22
Top View
21
20
19
18
17
16
15
14
13
BL1
SVDD
SDA
BL0
SCL
NC
NC
Figure 1 Pinout Diagram SX9510/11 (QFN, TSSOP)
1.2
Marking information SX9511
ZK72
yyww
xxxxx
yyww = Date Code
xxxxx = Semtech lot number
Figure 2 Marking Information SX9511 (QFN, TSSOP)
Revision v1.12, November 2012
© 2012 Semtech Corp.
4
www.semtech.com
SX9510/11
8 Capacitive Buttons, LEDs, IR Decoder and
Proximity Controller with Analog Outputs
WIRELESS & SENSING PRODUCTS
1.3
Marking information SX9510
DATASHEET
ZL73
yyww
xxxxx
yyww = Date Code
xxxxx = Semtech lot number
Figure 3 Marking Information SX9510 (QFN, TSSOP)
Revision v1.12, November 2012
© 2012 Semtech Corp.
5
www.semtech.com
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