AK4182A Datasheet, PDF (3/18 Pages) Asahi Kasei Microsystems – Touch Screen Controller

ASAHI KASEI


No.
Signal Name
1 BUSY
2 DIN
3 CSN
4 DCLK
5 VCC
6 XP
7 YP
8 XN
9 YN
10 GND
11 VBAT
12 IN
13 VREF
14 IOVDD
15 PENIRQN
16 DOUT
[AK4182A]


ϐϯʗػೳ
I/O
Description
O BUSY Output
CSN↓Ͱ “L” ʹͳΓ·͢ɻ8DCLK↓ͱ 9DCLK↓ͷؒ͸ “H” ʹͳΓ·͢ɻ
CSN = “H” Ͱ͸ Hi-Z ঢ়ଶͰ͢ɻ

I Serial Data Input
CSN = “L” ༻ޚ੍Ͱσʔλʢ8 ϏοτʣΛγϦΞϧೖྗ͠·͢ɻ
AK4182A ͸ɺDCLK ͷ↑ͰσʔλΛϥον͠·͢ɻσʔλೖྗ࣌Ҏ֎͸ “L” Λೖྗ
ͯ͠Լ͍͞ɻ
I Chip Select Input
CSN = “L” ͰɺϨδελ΁ͷॻ͖ࠐΈ͕ՄೳͰ͢ɻ

I External Clock Input
- Power Supply
I/O Touch Screen X+ plate Voltage supply
„X ࣠ํ޲ͷҐஔଌఆ࣌ɿλονύωϧͷ X+࣠ଆʹిѹ͢·͠څڙ
„Y ࣠ํ޲ͷҐஔଌఆ࣌ɿADC ΁ͷඃଌఆిҐೖྗ୺ࢠͱͯ͠࢖༻͠·͢ɻ
„චѹݕग़࣌ɿZ1 ଌఆͰ͸ɺADC ΁ͷඃଌఆిҐೖྗ୺ࢠͱͯ͠࢖༻͠·͢ɻ
„Թ౓ɾόοςϦిѹɾ֎෦Ξφϩάిѹଌఆ࣌ɿOPEN Ͱ͢ɻ
„ϖϯׂΓࠐΈݕग़࣌ɿ಺෦఍߅ 50kΩͰϓϧΞοϓ͍ͯ͠·͢ɻ

I/O Touch Screen Y+ plate Voltage supply
„Y ࣠ํ޲ͷҐஔଌఆ࣌ɿλονύωϧͷ Y+࣠ଆʹిѹ͢·͠څڙ
„X ࣠ํ޲ͷҐஔଌఆ࣌ɿADC ΁ͷඃଌఆిҐೖྗ୺ࢠͱͯ͠࢖༻͠·͢ɻ
„චѹݕग़࣌ɿλονύωϧͷ Y+࣠ଆʹిѹ͢·͠څڙ
„Թ౓ɾόοςϦిѹɾ֎෦Ξφϩάిѹଌఆ࣌ɿOPEN Ͱ͢ɻ
„ϖϯׂΓࠐΈݕग़࣌ɿOPEN Ͱ͢ɻ

I/O Touch Screen X- plate Voltage supply
„X ࣠ํ޲ͷҐஔଌఆ࣌ɿλονύωϧͷ X-࣠ଆʹిѹ͢·͠څڙ
„Y ࣠ํ޲ͷҐஔଌఆ࣌ɿOPEN Ͱ͢ɻ
„චѹݕग़࣌ɿλονύωϧͷ X-࣠ଆʹిѹ͢·͠څڙ
„Թ౓ɾόοςϦిѹɾ֎෦Ξφϩάిѹଌఆ࣌ɿOPEN Ͱ͢ɻ
„ϖϯׂΓࠐΈݕग़࣌ɿOPEN Ͱ͢ɻ

I/O Touch Screen Y- plate Voltage supply
„Y ࣠ํ޲ͷҐஔଌఆ࣌ɿλονύωϧͷ Y-࣠ଆʹిѹ͢·͠څڙ
„X ࣠ํ޲ͷҐஔଌఆ࣌ɿOPEN Ͱ͢ɻ
„චѹݕग़࣌ɿZ2 ଌఆͰ͸ɺADC ΁ͷඃଌఆిҐೖྗ୺ࢠͱͯ͠࢖༻͠·͢ɻ
„Թ౓ɾόοςϦిѹɾ֎෦Ξφϩάిѹଌఆ࣌ɿOPEN Ͱ͢ɻ
„ϖϯׂΓࠐΈݕग़࣌ɿGND Ͱ͢ɻ

- Ground
I Analog Input for Battery Monitor
I Auxiliary Analog Input
I/O Voltage Reference Input/Output
಺෦ج४ిѹΛ࢖༻͢Δ৔߹͸ɺ7 Λग़ྗ͠·͢ɻ

Digital I/O Power Supply
σΟδλϧ I/F ͢Ͱݯి༻ɻ

O Pen Interrupt Output
CSN = “H” ͰϖϯׂΓࠐΈEnableঢ়ଶͰ͸ɺλονύωϧ͕ԡ͞Ε͍ͯΔ ؒظ“L”
ͰɺͦΕҎ֎͸ “H” Ͱ͢ɻCSN = “H” ͰϖϯׂΓࠐΈDisableঢ়ଶͰ͸ɺλονύω
ϧͷ઀৮ʗඇ઀৮ʹؔ܎ͳ͘ৗʹ “H” Ͱ͢ɻCSN = “L” Ͱ͸ɺύϫʔμ΢ϯϞʔ
υɺೖྗνϟωϧ౳ʹΑΓঢ়ଶ͕มԽ͠·͢ɻৄࡉ͸ɺ„ ύϫʔμ΢ϯ੍ ޚ͓Αͼ
„ ϖϯׂΓࠐΈͷ߲ΛࢀরԼ͍͞ɻ

O Serial A/D Data Output
A/D σʔλΛ DCLK ͷ↓Ͱ MSB ͔ΒॱʹγϦΞϧग़ྗ͠·͢ɻ
MSB ͸ɺBUSY ͷ↓Ͱग़ྗ͠·͢ɻ
CSN = “L” Ͱ͸ AD σʔλΛग़ྗ͍ͯ͠ͳ͍࣌͸ “L” Λग़ྗ͠·͢ɻ
CSN = “H” Ͱ͸ Hi-Z ঢ়ଶͰ͢ɻ
MS0482-J-01




2007/12