SX8654IWLTRT Semtech, SX8654IWLTRT Datasheet - Page 29
SX8654IWLTRT
Manufacturer Part Number
SX8654IWLTRT
Description
58T7563
Manufacturer
Semtech
Datasheet
1.SX8654IWLTRT.pdf
(62 pages)
Specifications of SX8654IWLTRT
Controller Type
Resistive Touch Screen
Ic Interface Type
I2C, Serial
Supply Voltage Range
2.3V To 3.6V
Operating Temperature Range
-40°C To +85°C
Resolution (bits)
12bit
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SX8654IWLTRT
Manufacturer:
ABOV
Quantity:
1 405
SX8654/SX8655/SX8656
Haptics Enabled 4/5-Wire
Resistive Touchscreen Controller with Proximity Sensing
ADVANCED COMMUNICATIONS & SENSING
Figure 35 – ProxRaw Update
5.3.3
PROXUSEFUL Update
PROXUSEFUL update consists in filtering PROXRAW upfront to remove its potential high frequencies
components(system noise, interferer, etc) and extract only user activity (few Hz max) and slow environment
changes.
Figure 36 – PROXUSEFUL Update
F(PROXRAW ; PROXUSEFUL[n-1] ; PROXRAWFILT) = (1 - PROXRAWFILT).PROXRAW + PROXRAWFILT.PROXUSEFUL[n-1]
th
Rev 1 – 25
July 2011
29
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