MC9328MX1 Datasheet, PDF (55/96 Pages) Freescale Semiconductor, Inc – i.MX Integrated Portable System Processor

3.10 Pen ADC Specifications
The specifications for the pen ADC are shown in Table 20 through Table 22.
Table 20. Pen ADC System Performance
Full Range Resolution¹
Non-Linearity Error¹
Accuracy ¹
13 bits
4 bits
9 bits
1. Tested under input = 0~1.8V at 25°C
Table 21. Pen ADC Test Conditions
Vp max 1800 mV ip max +7 µA
Vp min GND
ip min 1.5 µA
Vn
GND
in
1.5 µA
Sample frequency 12 MHz
Sample rate
1.2 KHz
Input frequency
100 Hz
Input range
0–1800 mV
Note: Ru1 = Ru2 = 200K
Table 22. Pen ADC Absolute Rating
ip max +9.5 µA
ip min -2.5 µA
in max +9.5 µA
in min -2.5 µA
Specifications
3.11 ASP Touch Panel Controller
The following sections contain the electrical specifications of the ASP touch panel controller. The value of
parameters and their corresponding measuring conditions are mentioned as well.
3.11.1 Electrical Specifications
Test conditions: Temperature = 25º C, QVDD = 1800mV.
MC9328MX1 Advance Information, Rev. 4
Freescale Semiconductor
55