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參數(shù)資料
| 型號： | UPD16682W |
| 廠商： | NEC Corp. |
| 英文描述： | 1/65 DUTY LCD CONTROLLER/DRIVER WITH ON-CHIP RAM |
| 中文描述： | 1 / 65稅LCD控制器/驅(qū)動器，片內(nèi)RAM |
| 文件頁數(shù)： | 24/56頁 |
| 文件大?。?/td> | 435K |
| 代理商： | UPD16682W |
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Data Sheet S13368EJ3V0DS00
24
μ
PD16682
10.4 Op Amp Control for Level Power Supply
The
μ
PD16682’s on-chip power supply circuit is designed for low power consumption (HPM = H). Consequently,
display quality may be diminished when a large LCD device or panel is used. In such cases, the display quality can
be improved by setting HPM = L (high-power mode). We recommend that you check the actual display quality before
deciding whether or not to use high-power mode.
If setting high-power mode still does not sufficiently improve the display quality, the LCD driver’s power supply must
be provided from an external source.
10.5 Command Sequence for Stepping Down On-chip Power Supply
As shown in the following command sequence, we recommend that you set low power mode and turn off the power
before stepping down the on-chip power supply.
Step
Description
Command Address
(Command, Status)
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Step1
Display OFF
1
0
1
0
1
1
1
0
Power save command
Step2
Display all ON
1
0
1
0
0
1
0
1
(compound)
End
On-chip power supply
OFF
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