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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： | 8/16頁 |
| 文件大小： | 376K |
| 代理商： | AD8383 |
AD8383
THEORY OF OPERATION
TRANSFER FUNCTION AND ANALOG OUTPUT VOLTAGE
The DecDriver has two regions of operation: where the video
output voltages are either above or below a reference voltage
VMID, and where VMID = (V1 + V2)/2. The transfer function
defines the analog output voltage as the function of the digital
input code as follows:
Rev. 0 | Page 8 of 16
×
=
1023
–
1
)
(
n
FS
V
V1
n
VIDx
for INV = LOW
×
+
=
1023
–
1
)
(
n
VFS
2
V
n
VIDx
for INV = HIGH
where
n
= input code
VFS
= 2 × (
VREFHI
–
VREFLO
)
A number of internal limits define the usable range of the
analog output voltages, VIDx, as shown in Figure 5.
To best correlate transfer function errors to image artifacts, the
overall accuracy of the DecDriver is defined by two parameters,
VDE and VCME.
VDE
, the differential error voltage, measures the difference
between the rms value of the output and the rms value of the
ideal. The defining expression is
[
] [
2
]
VFS
n
1
V
n
VOUTP
2
V
n
VOUTN
n
VDE
×
1
=
1023
)
(
)
(
)
(
VCME
, the common-mode error voltage, measures the dc
bias of the output. The defining expression is
(
)
+
2
+
=
–
)
(
)
(
2
1
2
1
)
(
2
V
1
V
n
VOUTP
n
VOUTN
n
VCME
INPUT CODE
V
AGND
V1–V
FS
V1
V2
V
MID
V2+V
FS
AVCC
0
1023
0
0
≤
V
FS
≤
5.5V
0
≤
V
FS
≤
5.5V
5V
≤
V2
≤ (
AVCC – 4)
V
MID
= (V1+V2)/2
2V
REFHI
–V
REFLO
5V
≤
V1
≤
(
AVCC – 4)
9V
≤
AVCC
≤
18V
≥
1.3V
≥
1.3V
INV = HIGH
INV = LOW
INTERNAL LIMITS AND
USABLE VOLTAGE RANGES
Figure 5. Transfer Function, VIDx vs. Input Code, Internal Limits and Usable Output Voltage Range
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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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