IQS253EV02S Azoteq, IQS253EV02S Datasheet - Page 3

• Manufacturer Part Number: IQS253EV02S
• Description: Touch Sensor Development Tools IQS253 Eval Kit
• Manufacturer: Azoteq

Specifications of IQS253EV02S

• Rohs: yes
• Interface Type: I2C

3.2 IQS253
Figure 3.2 illustrates the projected mode
IQS253 Module board. Its features include:
Descriptions of the IQS253 self-capacitance
mode module board components are given in
Table 3.2.
Copyright © Azoteq (Pty) Ltd 2012.
All Rights Reserved.
Figure 3.2
3 x Touch and Proximity sensing channels
in projected capacitance mode
Small and compact PCB layout, which
iseasily wired to prototype applications
Projected Capacitance Mode
marked “P”
IQS253 module board
Module
Board
ProxSense
IQS253EV02 Evaluation Kit User Manual
IQ Switch
–
®
Revision 1.0
Table 3.2
board component description
Series
Component Purpose
C1, C2
C3, C4
R4
R1, R2, R3
R7, R8, R9
®
IQS253 P-Mode Module
Power
supply
decoupling
capacitors
Internal
regulator
decoupling
capacitors
Sense
electrode
(CTX) series
resistor
(Added ESD
Protection)
Sense
electrode
(CRX) series
resistors
(Added ESD
Protection)
Debug Mode
pull-up
resistors
Typical value
1µF,
100pF
1µF,
100pF
470Ω
470Ω
10kΩ
Page 3 of 6
June 2012