Azoteq IQ Switch ProxSense Series Quick Start Manual

IQS227/8ASEV02 Quick start guide
Single Channel Capacitive Proximity/Touch Controllerwith movement detection
The IQS227/8AS ProxSense
where an awake/activate on proximity/touch function is required. The IQS227/8AS
operates standalone or I

1 Reference design and pin layout

1
TOUT
227AS
2
VSS
228AS
3
POUT
Figure 1.1 IQS227/8AS pinout
Pin Name
1 TOUT
2 VSS
3 POUT
4 VREG
5 VDDHI
6 Cx

2 IQS227/8AS reference design

Copyright © Azoteq (Pty) Ltd 2017.
All Rights Reserved.
IQ Switch
ProxSense
®
IC is a self-capacitance controller designed for applications
2
C can be configured via OTP (One Time Programmable) bits.
6 Cx
IQS
5 VDDHI
4 VREG
IQS227/8AS in TSOT23-6
Type
Digital Input / Output
Signal GND
Digital Input / Output
Regulator output
Supply Input
Sense electrode
Figure 2.1 IQS277/8AS layout on AZP451B01
®
®
Series
Figure 1.2 IQS227/8ASEV02
Function
Touch output / General output
Multifunction proximity output / control input
Requires external capacitor
Supply:1.8V – 3.3V
Connect to conductive area intended for sensor
IQS277/8ASEV01 Quick start guide
Revision 1.2
Page 1 of 2
April 2017