AK4160 AKM [Asahi Kasei Microsystems], AK4160 Datasheet - Page 37

• Manufacturer Part Number: AK4160
• Description: 16-channel Capacitive Touch Sensor IC
• Manufacturer: AKM [Asahi Kasei Microsystems]

Figure 18
demonstrates the optimum layout, power supply arrangements and measurement results.
<16ch Touch Switch>
<8ch Touch Switch & 8ch LED Display >
MS1313-E-01
Note:
and
- These figures are the connection diagram when the AD0 pin = “L” and the AD1 pin = “L”. In case of the
- VSS of the AK4160 should be distributed separately from the ground of external controllers.
- All digital input pins (SCL, SDA, AD0, AD1, RSTN pins) must not be left floating.
Figure 19
AD0 pin = “H” or the AD1 pin = “H”, their pin must be connected to VDD.
uP
uP
Figure 19. Typical Connection Diagram for 8ch Touch Switch & 8ch LED Display
show the system connection diagram for the AK4160. An evaluation board [AKD4160]
Figure 18. Typical Connection Diagram for 16ch Touch Switch
47nF
47nF
100Kohm
100Kohm
SYSTEM DESIGN
VDD
SCL
SDA
RSTN
IRQ0N
IRQ1N
IRQ2N
AD1
AD0
VREG
RREF
VSS
VDD
SCL
SDA
RSTN
IRQ0N
IRQ1N
IRQ2N
AD1
AD0
VREG
RREF
VSS
- 37 -
AK4160
AK4160
GPIO0 ~ GPIO7
CS0 ~ CS15
CS0 ~ CS7
LED Display
Touch Switch
Touch Switch
VOL
OFF
UP
ON
7
4
1
0
VOL
MEN U
DN
8
5
2
=
AC
EXT
CH
UP
9
6
3
MUTE
CH
DN
x
+
–
/
[AK4160]
2011/11