sx8639 Semtech Corporation, sx8639 Datasheet - Page 37
sx8639
Manufacturer Part Number
sx8639
Description
Low Power, Capacitive Button And Wheel Touch Controller 8 Sensors With Enhanced Led Drivers And Proximity Sensing
Manufacturer
Semtech Corporation
Datasheet
1.SX8639.pdf
(81 pages)
- Current page: 37 of 81
- Download datasheet (2Mb)
ADVANCED COMMUNICATIONS & SENSING
VANA, VDIG
The SX8639 has on-chip regulators for internal use (pins VANA and VDIG).
VANA and VDIG have protection to VDD and to GND.
The output of the regulators needs to be de-coupled with a small 100nF capacitor to ground.
Figure 44 shows a simplified diagram of the VANA and VDIG pin.
4.5 General purpose IO pins
The SX8639 has 8 General purpose input/output (GPIO) pins.
All the GPIO pins have protection to VDD and GND.
The GPIO pins can be configured as GPI, GPO or GPP.
Figure 45 shows a simplified diagram of the GPIO pins.
Revision 7_8, September 10
Figure 44
Cvana
Cvdig
Figure 45
GND
GND
(8 sensors) with Enhanced LED Drivers and Proximity Sensing
Simplified diagram of VANA and VDIG
© 2010 Semtech Corp.
VANA
VDIG
Simplified diagram of GPIO pins
Low Power, Capacitive Button and Wheel Touch Controller
SX8639
37
VDD
VDD
VDIG
VANA
DATASHEET
www.semtech.com
SX8639
Related parts for sx8639
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
HIGH VOLTAGE CAPACITORS MONOLITHIC CERAMIC TYPE
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
EZ1084CM5.0 AMP POSITIVE VOLTAGE REGULATOR
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
3.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
RailClamp Low Capacitance TVS Diode Array
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet: