IQS222EV03S Azoteq, IQS222EV03S Datasheet - Page 3

• Manufacturer Part Number: IQS222EV03S
• Description: Touch Sensor Development Tools IQS222 Eval Kit 3
• Manufacturer: Azoteq

Specifications of IQS222EV03S

• Rohs: yes
• Interface Type: USB, Battery, DS100/CT210
• Operating Voltage: 5 V

4 Reference Design
Figure 4.1 shows the reference design for the IQS222.
Copyright © Azoteq (Pty) Ltd 2011.
All Rights Reserved.
Optional Antenna
Pull to VREG for
different address
Add 100pF caps on power lines
for improved RF immunity
VIN
1uF
GND
GND
GND
GND
GND
Figure 4.1
VDDHI
VREG
ICTRL
RFIN
VSS
ICA0
ProxSense
Reference Design for IQS222
IQ Switch
IQS222EV03 Evaluation Kit User Manual
*.dxf files for wheel and slider
available on Azoteq website
CS0
CS1
CS2
CX0
CX1
CX2
CX3
CX4
CX5
CX6
CX7
SDA
SCL
RDY
®
Optional RDY
Use COG caps for
zoom modes
Series
Revision 1.1
2k
2k
2k
2k
2k
2k
2k
2k
®
VIN
CS2
GND
CS1
Scroll Wheel
Typ: 33nF
Range: 10nF:100nF
CS0
Key 0
Key 1
Key 2
Key 3
Key 4
Microcontroller
January 2012
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