ucb1300 NXP Semiconductors, ucb1300 Datasheet - Page 17
![no-image](/images/manufacturer_photos/0/4/487/nxp_semiconductors_sml.jpg)
ucb1300
Manufacturer Part Number
ucb1300
Description
Advanced Modem/audio Analog Front-end
Manufacturer
NXP Semiconductors
Datasheet
1.UCB1300.pdf
(56 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UCB1300
Manufacturer:
PHILIPS
Quantity:
9
Company:
Part Number:
ucb1300BE
Manufacturer:
INTEL
Quantity:
1 200
Company:
Part Number:
ucb1300BE
Manufacturer:
PHILIPS
Quantity:
110
Philips Semiconductors
Product specification
Advanced modem/audio analog front-end
UCB1300
PLATE RESISTANCE MEASUREMENT
The plate resistance of a touch screen typically varies a lot due to processing spread. Knowing the actual plate resistance
makes it possible to compensate for the plate resistance effects in pressure resistance measurements. The plate
resistance decreases when two or more spots on the touch screen are pressed. In that case, a part of one plate, e.g. the
X plate, is shorted by the other plate, which decreases the actual plate resistance
Vtscbias
iplate
tspx
tsmy
tspy
tsmx
Fig.11 Touch screen setup for plate resistance.
The plate resistance measurement is executed in the same way as the pressure resistance measurement. In this case
only one of the two plates is biased and the other plate is kept floating. The current through the connected plate is again
a direct indication of the connected resistance.
2000 Jun 26
17