QT60240-ATG Datasheet, PDF (9/26 Pages) List of Unclassifed Manufacturers – 16 AND 24 KEY QMATRIX TOUCH SENSOR ICs

Figure 2.7 Wiring Diagram
See Table 2.2 for further connection information.
Vunreg
+1.8V to +5V
VREG
VDD
follow regulator manufacturers
recommended values for input and
output bypass capacitors; keep output
capacitor close to QT60xx0 pins 4 and 6.
If not possible, add a 100nF capacitor
next to those pins.
VDD
10K 10K
SDA
I2C
SCL
CHANGE
LATCH
MAINS SYNC
SCOPE SYNC
Suggested regulator manufacture rs:
• Toko (XC6215 series)
• Seiko (S817 series)
• BCDSemi (AP2121 series)
QT60240
QT60160
*RX7
1K
*RX3
1K
*RX6
1K
*RX2
1K
*RX5
1K
*RX4
1K
*RX1
1K
*RX0
1K
* optional - for emission suppression
** optional - for RF susceptibility improvement
**RY0
1K
CS0 4.7nF _**RY1
1K
CS1 4.7nF _**RY2
1K
CS2 4.7nF
RS2 RS1 RS0
1M 1M 1M
Note: Leave YnA, YnB unconnected
if not used
lQ
9
QT60240-ISG R8.06/0906