參數(shù)資料
型號: AK4533
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Audio Codec with Touch Screen Controller
中文描述: 音頻編解碼器與觸摸屏控制器
文件頁數(shù): 6/40頁
文件大小: 473K
代理商: AK4533
[ASAHI KASEI]
<Revision 0.9a>
July 00
5
No.
2
Signal Name
TADE
I/O
I
Description
Touch Panel A/D Data Chip Enable Pin
This pin enables the output of Touch Screen A/D converter when it goes to
“H”. ADC starts tracking at the rising edge. A/D Conversion and the output
require 16 TADCK clock cycles. This pin should be set to “L” once per one
A/D conversion.
Interrupt
This pin is “H” ONLY when the touch screen is pressed. In other cases, the
pin is “L”.
Touch Screen A/D data Output Ready
When Touch Screen A/D converter is ready to output data, TADRDY pin goes
to “H”. This pin goes back to “L” after 12 bit data is output.
Touch Screen A/D Data Output
MSB of A/D data is output at the rising edge of TADRDY is “H”. Other bits of
data are output at the falling edge of TADCK clock
Touch Panel ADC Clock
This clock is used for A/D conversion and for the output of data One A/D
conversion needs 16 TADCK clock cycle.
45
INT
O
46
TADRDY
O
47
TADOUT
O
48
TADCK
I
Miscellaneous
17
TST0
-
Test pin 0
Should be Connected to DGND.
Test pin 1
Should be Connected to DGND.
Test pin 2
Should be Connected to DGND.
Test pin 3
Should be Connected to DGND.
Non Connection
Non Connection
Non Connection
Non Connection
Non Connection
Non Connection
18
TST1
-
19
TST2
-
20
TST3
-
1
NC
NC
NC
NC
NC
NC
-
-
-
-
-
-
12
22
25
37
44
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