Iqs128 Ev01 User Manual
3
IQ Switch ® ProxSense ® Series Copyright © Azoteq (Pty) Ltd 2012 Page 1 of 3 All Rights Reserved Revision 1.00 January 2012 IQS128 on AZP242A02 Connection Guide 1 IQS128 on AZP242A02 2 PCboard (AZP242A02) 3 PCB Layout Figure 1.1 Top layer component placement GND CTRL/ND VDDHI CX/Sense plate OUT VDDHI GND C2 1uF CX OUT CTRL/ND VREG C3 1uF GND C1 100pF C4 100pF R2 470R OUT OUT R3 2K0 CX CTRL/ND 3 OUT 1 VREG 4 CX 6 VSS 2 VDDHI 5 U1 IQS128TSOT23-6 CTRL/ND CTRL/ND R1 2K0 VDDHI VDDHI Connect CX to sense button (See Appnote: AZD008 for button design guidelines) OUT = DYCAL Output CTRL = Input CTRL or Touch output ND = Multiplexed optional Noise Detector Optional: 100pF capacitors for additional RF immunity (C1 and C4).
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iqs128 user manual
Transcript of Iqs128 Ev01 User Manual
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IQ Switch ProxSense Series
Copyright Azoteq (Pty) Ltd 2012 Page 1 of 3 All Rights Reserved Revision 1.00
January 2012
IQS128 on AZP242A02 Connection Guide
1 IQS128 on AZP242A02
2 PCboard (AZP242A02)
3 PCB Layout
Figure 1.1 Top layer component placement
GND
CTRL/ND
VDDHI
CX/Sense plate OUT
VDDHI
GND
C21uF
CXOUT
CTRL/ND VREG
C31uF
GND
C1100pF
C4100pF
R2
470R
OUTOUT
R3
2K0
CX
CTRL/ND3
OUT1
VREG 4
CX 6
VSS2 VDDHI 5
U1
IQS128 TSOT23-6
CTRL/NDCTRL/ND
R1
2K0
VDDHIVDDHI
Connect CX to sense button(See Appnote: AZD008 for button design guidelines)
OUT = DYCAL OutputCTRL = Input CTRL or Touch outputND = Multiplexed optional Noise DetectorOptional: 100pF capacitors for additional RF immunity (C1 and C4).
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IQ Switch ProxSense
Copyright Azoteq (Pty) Ltd 2012 Page 3 of 3 All Rights Reserved Revision 1.00
January 2012
Proximity and Touch sensitivity selections 6 pin TSOT23-6 IQS128LP offered in DFN(2x3)-8 Touch: 6 mm plastic, 10 mm glass Proximity: 15cm
IQS128EV01 Kit includes: 3 x Module PCB with IQS128 (TSOT23-6)
Contact Information Please visit www.azoteq.com for comprehensive datasheets, application notes, reference designs and a list of distributors for your region.
