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参数资料
| 型号： | AK4181AVT |
| 厂商： | ASAHI KASEI POWER DEVICES CORP |
| 元件分类： | 消费家电 |
| 英文描述： | TOUCH SCREEN CONTROLLER |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| 封装： | PLASTIC, LEAD FREE, TSSOP-16 |
| 文件页数： | 6/17页 |
| 文件大小： | 156K |
| 代理商： | AK4181AVT |
[AK4181A]
MS0313-E-02
2010/09
14
XP
PENIRQN
Driver ON
YN
100k
Ω
EN2
50k
Ω
Driver OFF
EN1
Figure 7 PENIRQ Functional Block Diagram
BUSY
DOUT
S
A2
A0
A1
MO
PD1
PD0
SER/
DFR
DCLK
DIN
11
9
8
7
6
5
4
3
2
1
0
10
CSN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
CONV
Internal
AXIS = ((!A2) & (!A1) & (A0))
/* X-axis Measurement */
| ((!A2) & (A1) & (A0))
/* Z1 Measurement */
| ((A2) & (!A1) & (!A0))
/* Z2 Measurement */
| ((A2) & (!A1) & (A0));
/* Y-axis Measurement */
EN1 = ((!CSN) & (!CONV) & AXIS & PD0)
/* CSN=”L”, X/Y/Z1/Z2 Measurement, PD0 = 1, NOT “CONV period” */
| ((!CSN) & AXIS & CONV);
/* CSN=”L”, X/Y/Z1/Z2 Measurement, “CONV period” */
EN2 = ((!CSN) & (!CONV) & (!PD0))
/* CSN=”L”, PD0 = 1, NOT “CONV period” */
| (CSN & (!(PD1& PD0));
/* CSN=”H”, (PD0, PD1) is not (1,1) */
Power on Sequence
On the AK4181A first powers up, the register value including power down mode, internal reference (PD1, PD0) holds unfixed
before sending first control command. On this condition pen interrupt function may be disable, internal reference may also be ON
state ([PD1, PD0] = [1,1]). 8bit control command must be sent as quick as possible when first power up to fix the internal register
value. The sequence is that 1) Power On with CSN = “L” or “H” then CSN = “H”. 2) Send control command after CSN = “L”. 3)
CSN = “H” again. Once sending command to fix the internal register after first power up, the state of AK4181A is held on the
condition of state as last command issued.
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相关代理商/技术参数 |
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|---|---|
| AK4181AVTP-E2 | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述: |
| AK4182 | 制造商:AKM 制造商全称:AKM 功能描述:Touch Screen Controller |
| AK4182A | 制造商:AKM 制造商全称:AKM 功能描述:touch screen controller |
| AK4182AVN | 制造商:AKM 制造商全称:AKM 功能描述:Touch Screen Controller |
| AK4182VN | 制造商:AKM 制造商全称:AKM 功能描述:Touch Screen Controller |
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