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LDS6107PYGI8 데이터시트 PDF




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부품번호 LDS6107PYGI8 기능
기능 Capacitive Touch Sensor IC Family
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LDS6107PYGI8 데이터시트, 핀배열, 회로
LDS6100 Family
PureTouch®* Capacitive Touch Sensor IC Family
FEATURES
o Up to 20 touch sensor channels
o 2ms update rate per active sensor input**
o Direct Communication Mode (DCM) for
mechanical button emulation
o Built-in Slider/Scroll Support
o Configurable hysteresis and debounce
o Touch Preference Modes
o Integrated LED drivers for visual feedback
(LDS6120/4/5/8)
o Configurable dimming
o Built-in flash and pulsate effects
o Individual LED configurability
o 1.65-5.5v supply voltage
o Low touch sensor operating power
o Full power mode (typ): <125uW***
o Optional low power mode
o On-chip automatic calibration algorithm
o SPI/I2C/SMBus-compatible serial I/F with
VDDIO
o GPIO and interrupt output
o 28 and 40-pin TQFN packages
o 28-pin SSOP also available
APPLICATIONS
o Mobile handsets, personal media pl ayers
o Portable navigation devices
o Remote controls
o Office equipment, multi-function printers
o Set top boxes
o Home appliances
o Brown goods
o Industrial controls
DESCRIPTION
The LDS6100 Family of capacitive touch controllers
enables streamlining of the human-machine interface
through the implementation of touch-based user
inputs such as touch buttons, sliders, and scroll
wheels. Employing a finely tuned sigma-delta
capacitance-to-digital converter and proprietary
noise-filtering algorithms, each device is able to
reliably sense small changes in capacitance, allowing
touch-based inputs to replace a side variety of
mechanical input types. On-chip automatic
calibration accounts for environmental changes such
as temperature, humidity, and dust and is executed
automatically.
The LDS6100 Family consists of eight products, four
(LDS6100/4/7/8) focusing exclusively on touch
functionality, with another four (LDS6120/4/6/8)
include LED drivers for integrated visual feedback
when a touch occurs. Up to 20 capacitive sensor
input pins may be supported, approximately half of
which may be optionally configured as output status
pins in Direct Communication Mode (DCM) which
allows emulation of mechanical buttons for more
seamless integration. On the four LDS6120
offerings, the other half of the sensors not
configurable as DCM outputs may be optionally
configured as LED drivers, enabling integrated visual
feedback for touch applications.
The LDS6100 Family supports a touch sensor supply
voltages from 1.65 to 5.5V. All support SPI, I2C, and
SMBus-compatible serial interfaces and offer both a
General Purpose I/O (GPIO) and VDDIO support,
enabling 1.65V to 5.5V voltage interface support.
Typical touch sensor operating power for the device
is less than 125uW***. and a LED driver supply
voltage from 3.0V to 5.5V. Package offerings include
thin form factor (0.8mm max, 0.75mm nominal) 4mm
x 4mm 28-pin and 5mm x 5mm 40-pin TQFN
packages and a 10.2mm x 5.3mm 28-pin SSOP
package.
* PureTouch is a registred trademark of IDT
** Nominal decimation rate (d=1024), per sensor input
*** 1.8V, excluding VDDIO current, which varies with VDDIO voltage, I/F type, and communication frequency
© 2009 IDT
Characteristics subject to change without notice
1
Doc. No. 6100DS, Rev. 0.1




LDS6107PYGI8 pdf, 반도체, 판매, 대치품
LDS6100 Family
ELECTRICAL OPERATING CHARACTERISTICS
VDD1 = 1.8V, VDD2 = 3.6V (LDS612x only), VDDIO = 1.8V TAMB = -40°C to +85°C unless otherwise specified
Parameter
Symbol
Conditions
Related Pins
Min
Typ
Max
Unit
Power & Operating Voltage
-
Operating Voltage(1) : Touch*
VDD1
-
VDD1
1.65 1.8 1.95
V
Operating Voltage(2) : LED
(LDS612x only)
VDD2
-
VDD2
3.0
5.5 V
Operating Voltage(3) : Touch - I/O VDDIO
-
VDDIO 1.65 - 5.5 V
Logic Inputs
High Level Input Voltage
VIH
-
(*1) 0.7*VDDIO
V
Low Level Input Voltage
VIL
-
(*1) VSS
0.3*VDDIO
V
Input Leakage Current
IIL VIN= VDDIO or VSS
(*1)
-1
uA
Logic Outputs
High Level Output Voltage
VOH
IOH= -1mA
(*2) 0.8*VDDIO
V
Low Level Output Voltage
VOL
IOL= +1mA
(*2)
0.2*VDDIO
V
Capacitance-to-Digital Converter
CDC Update Rate per Active Sensor
CIN Input Leakage
Sensor Capacitance
Tcdc
IILcin
Csensor
(*3)
IOH= -1mA
C0~Cx
1.95
2.05
2.15
25 (*4)
ms
nA
pF
LED DRIVER (LDS612x only)
Vf(LED)
LED Dri ving Voltage
VDD2
+1V
ILED per I/O pin
ILED
LED0-LEDx
Driver-to-Driver Current Matching
LED0-LEDx
-10
* For supply voltages >1.95V, apply to VDDIO pin and tie VDD1 pin to GND through C1
V
7.75 mA
+10 %
NOTE: (*1) : SCLK/SCL, SDI/A0, CSB/A1, SDA, GPIO, I/F SEL; (*2): SDA, INTB, SDO, GPIO; (*3) DECIMATION RATE = 1024, PER
UTILIZED SENSOR; (*4): MAXIMUM SENSOR CAPACITANCE MAY BE ALLOWED TO EXCEED 25PF DEPENDING UPON SYSTEM
CONDITIONS – CONTACT IDT FOR EXCEPTION CONDITIONS
© 2009 IDT
Characteristics subject to change without notice
4
Doc. No. 6100 FamilyDS, Rev. 0.1

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LDS6107PYGI8 전자부품, 판매, 대치품
LDS6100 Family
WRITING AND READING OVER THE SPI-COMPATIBLE INTERFACE
Data is clocked into the device on the positive edge of SCLK and out of the device on the negative edge of SCLK.
Data transactions are initiated when the host takes CSB from the high state to the low state and sends the
command word. The command word format is summarized below:
MSB
15
CW15
1
14
CW14
1
13
CW13
1
12
CW12
0
11
CW11
0
10
RW
R/W
LSB
[9:0]
RA9-RA0
Register Address
Bit 10 of the command word designates read-write status (read=1, write=0), and bits [9:0] provide the register
address where the data transfer begins. Bits [15:11] of the command word must be set to 11100 to begin a
bus transaction. The 10-bit register address in this datasheet will be designated as 0x000, the hexidecimal
representation of the register address.
WRITING DATA OVER SPI
For a write operation, the first 16-bit word is the command word that includes the read-write bit set to “0” and the
10-bit register address. This is followed by the 16-bit data word to be written at the register address, also provided
on the SDI line. Figure 3 below illustrates a single write operation.
Figure 3: SPI-Compatible Single Register Write
If there is more than one word of data to be clocked in, the LDS6100 Family automatically increments the address
and clocks in the next 16-bit data word received on the SDI line into the next register.
Figure 4: SPI-Compatible Sequential Register Write
© 2009 IDT
Characteristics subject to change without notice
7
Doc. No. 6100 FamilyDS, Rev. 0.1

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LDS6107PYGI8

Capacitive Touch Sensor IC Family

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