sx8661 Semtech Corporation, sx8661 Datasheet - Page 60
![no-image](/images/manufacturer_photos/0/5/596/semtech_corporation_sml.jpg)
sx8661
Manufacturer Part Number
sx8661
Description
Low Power, Capacitive Button Touch And Proximity Controller 8 Sensors With Led Drivers And Analog Output
Manufacturer
Semtech Corporation
Datasheet
1.SX8661.pdf
(88 pages)
- Current page: 60 of 88
- Download datasheet (2Mb)
ADVANCED COMMUNICATIONS & SENSING
AoiLevelBtn0,
AoiLevelBtn7, AoiLevelIdle
Revision v3.2, January 2011
or:
These registers define the level that will be output on AOI-A or AOI-B (depending on button mapping) when the
corresponding button is touched or when the corresponding state is active or idle. The duty cycle is defined as
a number of steps.
The mean voltage of a PWM signal is given by:
AoiPwmPeriod is 255 or 63.
Example:
When button 0 is touched the desired AOI voltage is 0.30 Volts.
To calculate the AoiLevelBtnx is as follows (with AoiPwmPeriod=255):
Assuming a 3.3V VDD:
Mean voltage
AoiLevelBtnx
AoiLevelBtnx
Write 0x17 in the register AoiBtn0DutyCycle.
AoiLevelBtn1,
≈
≈
(Mean voltage / Maximum Voltage (VDD)) * AoiPmwPeriod
(AoiLevelBtnx / AoiPmwPeriod) * Maximum Voltage (VDD)
≈
≈
(Mean voltage / Maximum Voltage (VDD)) * AoiPmwPeriod
(0.3/3.3) * 255
AoiLevelBtn2,
Low Power, Capacitive Button Touch and Proximity Controller
≈
23 decimal
© 2011 Semtech Corp.
AoiLevelBtn3,
60
(8 sensors) with LED Drivers and Analog Output
AoiLevelBtn4,
AoiLevelBtn5,
www.semtech.com
DATASHEET
AoiLevelBtn6,
SX8661
Related parts for sx8661
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![6666](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
HIGH VOLTAGE CAPACITORS MONOLITHIC CERAMIC TYPE
Manufacturer:
Semtech Corporation
Datasheet:
![EZ1084CM](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
EZ1084CM5.0 AMP POSITIVE VOLTAGE REGULATOR
Manufacturer:
Semtech Corporation
Datasheet:
![EZ1587CM](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
3.0 AMP LOW DROPOUT POSITIVE VOLTAGE REGULATORS
Manufacturer:
Semtech Corporation
Datasheet:
![ACS8515](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
![SR3.3](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
RailClamp Low Capacitance TVS Diode Array
Manufacturer:
Semtech Corporation
Datasheet:
![SC1151CS](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
![SC1182CSW](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
![SC1185CSW](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
![SC1150CS](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
![SC1152CS](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
![MMBT9012](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
![MMBT9013](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet:
![MMBT9014](/images/manufacturer_photos/0/5/596/semtech_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Semtech Corporation
Datasheet: