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參數資料
| 型號： | AD8383 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Cost 10-Bit, 6-Channel Output Decimating LCD DecDriver |
| 中文描述： | 低成本10位，6通道輸出液晶DecDriver元氣 |
| 文件頁數： | 9/16頁 |
| 文件大小： | 376K |
| 代理商： | AD8383 |
AD8383
APPLICATIONS
The V1 and V2 inputs in these systems are tied together and are
normally connected to VCOM, as shown in Figure 6.
Rev. 0 | Page 9 of 16
V2
V1
VCOM
AD8383
0
Figure 6. Standard Connection Diagram
The transfer function of the AD8383 is shown in Figure 7 for
V2 = V1 = VCOM.
VBIAS = 1V
VCOM
VFS = 5V
VFS = 5V
RESERVED
CODE
RANGE
VBIAS = 1V
0
1023
820
Figure 7. Output Transfer Function for Standard Connection
EXTERNAL VBIAS GENERATION
In systems that require improved brightness resolution and
higher accuracy, the V1 and V2 inputs, connected to external
voltage references, provide the necessary VBIAS while allowing
the full code range to be used for gamma correction.
V1
sets the white drive voltage while INV = LOW and
V2
sets
the white drive voltage while INV = HIGH.
V1
and
V2
are
defined as
V1
=
VCOM
–
VBIAS
V2
=
VCOM
+
VBIAS
To ensure a symmetrical ac driving voltage, the difference
between
V2
and
VCOM
must be equal to the difference
between
VCOM
and
V1
.
(
V2
–
VCOM
) = (
VCOM
–
V1
)
The circuit in Figure 8 ensures symmetry to within 1 mV with a
minimum component count. Bypass capacitors are not shown
for clarity.
The transfer function and the input symmetry error of the
AD8383 are shown in Figure 9 when the circuit of Figure 8 is
used to generate VBIAS.
AVCC = 15.5V
VZ = 5.1V
DVCC = 3.3V
VCOM = 7V
R1 = 6k
R2 = 1k
V2 = 8V
V1 = 6V
V2
V1
AD8383
AD8132
6
3
2
1
8
V–
V+
VCOM
–IN
+IN
5
4
0
Figure 8. High Accuracy Reference Circuit
VBIAS = 1V
VCOM
V2
V1
VFS = 4V
VFS = 4V
VBIAS = 1V
0
THE AD8383, IN THE APPLICATIONS
CIRCUIT SHOWN, TYPICALLY PRODUCES
A SYMMETRICAL OUTPUT AT 85°C WHEN
ITS SUPPLY, (V+) – (V–), IS AT 7.2V.
1023
Figure 9. Transfer Function for High Accuracy Reference Applications
5.7
6.2
6.7
7.2
7.7
8.2
8.7
9.2
9.7
10.2
10.7
–8.75
–6.25
–3.75
1.25
3.75
6.25
7.50
8.75
–1.25
–7.50
–5.00
0.00
2.50
5.00
–2.50
V
+
– V
–
(V)
(
T
A
= 85°C
T
A
= 25°C
TYPICAL ASYMMETRY AT THE OUTPUTS OF THE
AD8383 VERSUS ITS POWER SUPPLY FOR THE
APPLICATION CIRCUIT
0
Figure 10. Accuracy for High Accuracy Reference Applications
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8383ACPZ | 功能描述:IC DECIMATING LCD DRIVER 48LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 顯示器驅動器 系列:DecDriver™ 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 顯示器類型:真空熒光 (VF) 配置:5 x 7（矩陣） 接口:串行 數字或字符:- 電流 - 電源:3.5mA 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.154"，3.90mm 寬） 供應商設備封裝:16-QSOP 包裝:帶卷 (TR) |
| AD8384 | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 6-Channel Decimating LCD DecDriver-R with Level Shifters |
| AD8384ASVZ | 功能描述:IC DRIVER LCD 6CH 10BIT 80-TQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 顯示器驅動器 系列:DecDriver™ 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 顯示器類型:真空熒光 (VF) 配置:5 x 7（矩陣） 接口:串行 數字或字符:- 電流 - 電源:3.5mA 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.154"，3.90mm 寬） 供應商設備封裝:16-QSOP 包裝:帶卷 (TR) |
| AD8385 | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 12-Channel Decimating LCD DECDRIVER with Level Shifters |
| AD8385ASVZ | 制造商:Analog Devices 功能描述: |
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