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參數(shù)資料
| 型號： | UPD16750N-XXX |
| 廠商： | NEC Corp. |
| 英文描述： | LCD Display Driver |
| 中文描述： | 液晶顯示驅動程序 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 188K |
| 代理商： | UPD16750N-XXX |
Data Sheet S13719EJ4V0DS00
6
μ
PD16750
5. RELATIONSHIP BETWEEN INPUT DATA AND OUTPUT VOLTAGE VALUE
This product incorporates a 8-bit D/A converter whose odd output pins and even output pins output respectively gray
scale voltages of differing polarity with respect to the LCD’s counter electrode (common electrode) voltage. The D/A
converter consists of ladder resistors.
Figure 5
1 shows the relationship between the driving voltages such as liquid-crystal driving voltages V
DD2
and V
SS2
,
common electrode potential V
COM
, and
γ
-corrected voltages V
0
to V
15
and the input data. Be sure to maintain the
voltage relationships of
V
DD2
0.2 V > V
0
> V
1
> V
2
> V
3
> V
4
> V
5
> V
6
> V
7
> 0.5 V
DD2
,
0.5 V
DD2
0.3 V > V
8
> V
9
> V
10
> V
11
> V
12
> V
13
> V
14
> V
15
> V
SS2
+ 0.2 V
Figures 5
2 and 5
3 show the relationship between the input data and the output voltage. This driver IC is designed
for only single-sided mounting. Therefore, please do not use it for
γ
-corrected power supply level inversion in
double-sided mounting.
Figure 5–1. Relationship between Input Data and
γ
-corrected Power Supplies
V
1
V
2
V
3
V
4
V
SS2
00
20
40
80
C0
E0
FF
V
0
V
10
V
7
V
11
V
DD2
64
32
32
V
5
V
6
32
32
V
12
V
15
64
64
32
32
32
32
FE
V
13
V
14
Split interval
64
0.3 V
V
8
V
9
0.5 V
DD2
0.2 V
0.2 V
Input data (HEX)
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