AK4182A Datasheet, PDF (11/18 Pages) Asahi Kasei Microsystems – Touch Screen Controller

ASAHI KASEI


■ σΟδλϧ I/F
[AK4182A]
௿ిѹͰಈ࡞͢ΔϚΠΫϩϓϩηοαͱͷΠϯλϑΣʔεΛ༰қʹ͢ΔͨΊɺAK4182AͷσΟδλϧI/F͸ɺ1.5V͔Βಈ
࡞͢Δ͜ͱ͕ՄೳͰ͢ɻσΟδλϧI/FͷI/OϑϧεέʔϧϨϕϧ͸ɺIOVDDʹೖྗ͞ΕΔిѹͰنఆ͞Ε·͢ɻ

VCC=2.2V – 3.6V
IOVDD=1.5V – VCC
AK4182A
IOVDD
DCLK
SDIN
SDOUT
BUSY
Micro-
Processor
Figure 6 σΟδλϧ I/F
■ λονεΫϦʔϯίϯτϩʔϥ੍ޚίϚϯυ
λονεΫϦʔϯిѹΛҹՃ͢Δ࣠ͷબ୒΍ɺೖྗνϟωϧͷ੾Γସ͑౳ͷ੍ޚ͸ɺ8 bit ͰɺCSN = “L”ޙɺDCLK ͷཱ
ԼΓʹಉͯ͠ظग़ྗͯ͠Լ͍͞ɻAK4182A ͸ɺDCLK ͷ্ཱ͕ͪΓͰϥον͠·͢ɻ
Table 2 ʹAK4182Aͷ੍ޚίϚϯυΛࣔ͠·͢ɻ
D7
D6
D5
D4
D3
D2
D1
D0
S
A2
A1
A0
MODE
SER/ DFR
PD1
PD0
BIT
Name
ػೳ
7
S
ελʔτϏοτɻίϚϯυͷઌ಄ϏοτͰඞͣ “H”
6-4
A2-A0 νϟωϧબ୒ϏοτɻADC Ξφϩάೖྗ͓Αͼج४ిѹΛબ୒ɻৄࡉ͸ԼදΛࢀরɻ
3
MODE A/D σʔλग़ྗ࣌ 12 Ϗοτ/8 Ϗοτ੾Γସ͑Ϗοτɻ “L”ɿ12 Ϗοτग़ྗ “H”ɿ8 Ϗοτग़
ྗɻ
2
SER/ DFR ^{γϯάϧΤϯυʗσΟϑΝϨϯγϟϧબ୒Ϗοτ}
ADC ج४ిѹͱͯ͠ɺγϯάϧΤϯυ͔σΟϑΝϨϯγϟϧ͔Λબ୒͢ΔϏοτ
3
PD1-PD0 ύϫʔμ΢ϯϞʔυબ୒Ϗοτʢৄࡉ͸ɺʰ„ύϫʔμ΢ϯ੍ޚʱࢀরʣ
ޚ੍ίϚϯυ
A2 A1 A0 SER/
DFR
00
0
1
00
1
1
01
0
1
01
1
1
10
0
1
10
1
1
11
0
1
11
1
1
00
0
0
00
1
0
01
0
0
01
1
0
10
0
0
10
1
0
11
0
0
11
1
0
υϥΠόεΠονͷঢ়ଶ
XP XN YP YN
ADCೖྗ(ΔAIN)
AIN+ AIN-
OFF OFF OFF OFF TEMP0
OFF OFF ON ON XP
OFF OFF OFF OFF VBAT
OFF ON ON OFF XP(Z1)
OFF ON ON OFF YN(Z2)
ON ON OFF OFF YP
OFF OFF OFF OFF IN
OFF OFF OFF OFF TEMP1
OFF OFF ON ON XP
OFF ON ON OFF XP(Z1)
OFF ON ON OFF YN(Z2)
ON ON OFF OFF YP
GND
GND
GND
GND
GND
GND
GND
GND
YN
XN
XN
XN
ج४ిѹ (ΔVREF)
VREF+ VREF- Note
VREF
VREF
VREF
VREF
VREF
VREF
VREF
VREF
YP
YP
YP
XP
GND
GND
GND
GND
GND
GND
GND
GND
YN
XN
XN
XN
TEMP0Թ౓ଌఆ
Y࣠ଌఆ
όοςϦిѹଌఆ
චѹ(Z1)ଌఆ
චѹ(Z2)ଌఆ
X ࣠ଌఆ
IN ଌఆ
TEMP1 Թ౓ଌఆ
NA
Y ࣠ଌఆ
NA
චѹ(Z1)ଌఆ
චѹ(Z2)ଌఆ
X ࣠ଌఆ
εϦʔϓϞʔυ
NA
Table 2 ޚ੍ίϚϯυ
MS0482-J-01




2007/12