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參數(shù)資料
| 型號： | HD66330T |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 64-Level Gray Scale Driver for TFT Liquid Crystal Display(TFT LCD的64級灰度驅(qū)動器) |
| 中文描述： | 64級灰度的TFT液晶顯示驅(qū)動程序（TFT液晶顯示器的64級灰度驅(qū)動器） |
| 文件頁數(shù)： | 13/21頁 |
| 文件大小： | 140K |
| 代理商： | HD66330T |
HD66330T
1528
Output Offset Voltage
The HD66330T has an internal DA converter per output. The upper three bits of 6-bit display data select
and apply the LCD drive power supply voltage level to the DA converter, and the lower three bits select
and output one analog voltage level.
Output offset voltage Voff is defined as the difference between the actual output voltage and the ideal
output voltage expected from the LCD drive power supply voltage and digital display data. The Voff can
be considered as the total output voltage differences including the differences between LSIs, between
different output pins of the same LSI, and that caused by concentrated current in a LSI due to a particular
display pattern.
The figure below shows the characteristics of output voltage with respect to LCD drive power supply
voltages. Since output offset voltage Voff depends on the difference between adjoining LCD drive power
supply voltages |Vn – Vn + 1| (n = 0 to 7) output offset voltage will also decrease when the power supply
voltage difference |Vn – Vn + 1| is decreased.
LCD Drive Power Supply Voltage Examples
V0
0
V1
1.0
V2
1.5
V3
2.0
V4
2.5
V5
3.0
V6
3.5
V7
4.0
V8
5.0
Voltage (V)
0.5
|Vn – Vn + 1|
1.0
(V)
(mV)
60
30
0
O
Ideal output voltage
Voff= 60 mV
Output voltage dispersion range
Voff= 60 mV
Voff= 30 mV
Voff= 60 mV
0
0
0
0
0
0
0
1
1
1
1
V8
V7
V6
V5
V4
V3
V2
V1
V0
LSB
MSB
LCD drive power supply voltage
O
(V0 < V1 < ... < V8)
V8–V7 = 1 V
Voff= 30 mV
V5–V4 = 0.5 V
Voff= 60 mV
V8
V7
V6
V5
V4
V3
V2
V1
相關PDF資料 |
PDF描述 |
|---|---|
| HD66350T | 256-level Grayscale TFT for XGA/SXGA/UXGA Systems(高品質(zhì)TFT LCD的256級灰度驅(qū)動器) |
| HD66410 | RAM-Provided 128-Channel Driver for Dot-Matrix Graphic LCD(點陣圖形LCD128通道驅(qū)動器) |
| HD66420 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66420TA0 | LCD Display Driver |
| HD66421 | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HD66330TA0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66339 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HD66410 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66420 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| HD66420TA0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:LCD Display Driver |
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