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參數(shù)資料
| 型號(hào)： | AD8380JS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | Fast, High-Voltage Drive, 6-Channel Output DecDriver Decimating LCD Panel Driver |
| 中文描述： | LIQUID CRYSTAL DISPLAY DRIVER, PQFP44 |
| 封裝： | 10 X 10 MM, 2 MM HEIGHT, MQFP-44 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 219K |
| 代理商： | AD8380JS |
REV. B
–13–
AD8380
In order to obtain the best matching, the traces to each of the
VREFHI pins of the AD8380s should be connected by an
approximately same length and same width circuit trace in a
“star” configuration. The source of the VREFHI voltage should
be at the center of the “star.” Therefore, the VREFHI currents
for two devices will not share a significant length of circuit trace,
and each trace will provide an approximately equal voltage drop.
In addition, if the VREFHI traces must be long, then the traces
should be widened to minimize differences in the voltage drops
due to differences in the VREFHI input currents of different
AD8380s. The dc resistance of these traces should be less than
100 m
. If the VREFHI input current is about 1 mA, then the
voltage drop will be about 100
μ
V.
For example, if a trace length is 5 in. long (13 cm.), then the
trace width for a 1 oz. copper foil should be wider than 0.025 in.
(0.7 mm) in order to keep the trace impedance below 100 m
.
Driving a Capacitive Load
A purely capacitive load can react with output impedance of the
AD8380 resulting in overshoot and ringing in its step response.
To minimize this effect, and optimize settling time, it is recom-
mended that a 25
resistor be placed in series with each of the
driver’s outputs as shown in Figure 10.
2.500V
3.3V
10V
15V
CLK
10
DB[0:9]
XFR
E/
O
R/
L
STSQ/CS
3
A[0:2]
INV
STBY
0.1 F
DVCC
VREFHI
VREFLO
AVCCDAC
AVCCBIAS
AVCC0,1
AVCC2,3
AVCC4,5
VMID
DVEE
AVEEDAC
BYP AVEEBIAS
AVEE0
AVEE1,2
AVEE3,4
AVEE5
LOGIC
DAC
BIAS
DRIVERS
6
VID0
–
VID5
7V
10 F
0.1 F
0.1 F
0.1 F
0.1 F
0.1 F
22 F
10 F
0.1 F
R
S
24.9
(TYP FOR 6)
10 F
22 F
10 F
0.1 F
0.1 F
0.1 F
Figure 10. Interface Drawing
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PDF描述 |
|---|---|
| AD8381 | Fast, High Voltage Drive, 6-Channel Output DecDriverTM Decimating LCD Panel Driver |
| AD8381AST | Fast, High Voltage Drive, 6-Channel Output DecDriverTM Decimating LCD Panel Driver |
| AD8381AST-REEL | Fast, High Voltage Drive, 6-Channel Output DecDriverTM Decimating LCD Panel Driver |
| AD8390 | Low Power, High Output Current Differential Amplifier |
| AD8390ACP-EVAL | Low Power, High Output Current Differential Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8380JSZ | 制造商:Analog Devices 功能描述:LCD DRVR 3.3V/5V/12V/15V/18V 44-Pin MQFP |
| AD8381 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Fast, High Voltage Drive, 6-Channel Output DecDriverTM Decimating LCD Panel Driver |
| AD8381AST | 制造商:AD 制造商全稱:Analog Devices 功能描述:Fast, High Voltage Drive, 6-Channel Output DecDriverTM Decimating LCD Panel Driver |
| AD8381AST-REEL | 制造商:AD 制造商全稱:Analog Devices 功能描述:Fast, High Voltage Drive, 6-Channel Output DecDriverTM Decimating LCD Panel Driver |
| AD8381-EB | 制造商:Analog Devices 功能描述:LCD DRVR 9 TO 18V - Bulk |
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