AK4186 Datasheet, PDF (27/33 Pages) Asahi Kasei Microsystems – Low Power Touch Screen Controller with I2C Interface

AK4186EN <4-wire Touch Screen Input>
Digital Ground
Analog Ground
4-wire
Touch Screen
[AK4186]
13 ^NC
NC ₈
AK4186EN
14 ^VSS
VDD ₇
Top View
15 ^{T EST}
IN ₆
16 ^{N C}
NC ₅
0.001µ *
0.001µ *
0.001µ *
0.001µ *
Analog Supply
10µ ^{+ 1.6∼3.6V}
0 .1µ
Auxiliary
Analog Input
Rp
Rp
µP
“L” or “H”
Figure 36. Typical Connection Diagram (4-wire, AK4186EN)
Notes:
- VSS of the AK4186 should be distributed separately from the ground of external controllers.
- All digital input pins (SCL, SDA, CAD0 pins) must not be left floating.
MS1068-E-04
- 27 -
2011/03