SX8661I07AULTRT Semtech, SX8661I07AULTRT Datasheet - Page 47

• Manufacturer Part Number: SX8661I07AULTRT
• Description: IC, Capacitive Button Touch And Proximity Controller, 8 SENSOR, MLPQ-28
• Manufacturer: Semtech

Specifications of SX8661I07AULTRT

• Controller Type: Capacitive Touch Screen
• Ic Interface Type: I2C
• Supply Voltage Range: 2.7V To 3.6V
• Operating Temperature Range: -40°C To +85°C

ADVANCED COMMUNICATIONS & SENSING
5.3 Capacitive Sensors Parameters
Revision v3.2, January 2011
Capacitive Sensors Parameters
Address
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
Name
CapModeMisc
Reserved
CapMode7_4
CapMode3_0
CapSensitivity0_1
CapSensitivity2_3
CapSensitivity4_5
CapSensitivity6_7
Reserved
Reserved
CapThresh0
CapThresh1
CapThresh2
CapThresh3
CapThresh4
CapThresh5
CapThresh6
CapThresh7
CapPerComp
Bits Description
7:3 Reserved (0x00)
2:0 IndividualSensitivity Defines common sensitivity for all sensors or individual sensor
7:0 Reserved (0x00)
7:6 CAP7 Mode
5:4 CAP6 Mode
3:2 CAP5 Mode
1:0 CAP4 Mode
7:6 CAP3 Mode
5:4 CAP2 Mode
3:2 CAP1 Mode
1:0 CAP0 Mode
7:4 CAP0 Sensitivity - Common Sensitivity
3:0 CAP1 Sensitivity
7:4 CAP2 Sensitivity
3:0 CAP3 Sensitivity
7:4 CAP4 Sensitivity
3:0 CAP5 Sensitivity
7:4 CAP6 Sensitivity
3:0 CAP7 Sensitivity
7:0 Reserved (0x00)
7:0 Reserved (0x00)
7:0 CAP0 Touch Threshold
7:0 CAP1 Touch Threshold
7:0 CAP2 Touch Threshold
7:0 CAP3 Touch Threshold
7:0 CAP4 Touch Threshold
7:0 CAP5 Touch Threshold
7:0 CAP6 Touch Threshold
7:0 CAP7 Touch Threshold
7:4 Reserved (0x00)
3:0 Periodic Offset Compensation
Low Power, Capacitive Button Touch and Proximity Controller
© 2011 Semtech Corp.
sensitivity.
000: Common sensitivity settings (CapSensitivity0_1[7:4])
100: Individual sensitivity settings (CapSensitivityx_x) (default)
Else : Reserved
Defines the mode of the CAP pin.
00: Disabled
01: Button
10: Reserved
11: Proximity (CAP0),
Default: 0x5557
47
(8 sensors) with LED Drivers and Analog Output
Reserved (CAP6,..CAP1)
Defines the sensitivity.
0x0: Minimum
0x1: 1
…
0x7: Maximum
0x8..0xF: Reserved
Default CapSensitivity0_1: 0x72
Default CapSensitivity2_3: 0x22
Default CapSensitivity4_5: 0x22
Default CapSensitivity6_7: 0x22
Defines the Touch Threshold ticks.
0x00: 0,
0x01: 4,
…
0xA0: 640 (default),
…
0xFF: 1020
Defines the periodic offset compensation.
0x0: OFF (default)
0x1: 1 second
0x2: 2 seconds
…
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DATASHEET
Default Button
Default Button
Default Button
Default Button
Default Button
Default Button
Default Button
Default Proximity
SX8661