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ADA4431-1YCPZ-R7

更新时间： 2024-11-23 04:31:15
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亚德诺 - ADI /
页数 文件大小 规格书
12页 456K
描述
Ultralow Power SD Video Filter with Load Detection

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ADA4431-1YCPZ-R7 数据手册

 浏览型号ADA4431-1YCPZ-R7的Datasheet PDF文件第2页浏览型号ADA4431-1YCPZ-R7的Datasheet PDF文件第3页浏览型号ADA4431-1YCPZ-R7的Datasheet PDF文件第4页浏览型号ADA4431-1YCPZ-R7的Datasheet PDF文件第5页浏览型号ADA4431-1YCPZ-R7的Datasheet PDF文件第6页浏览型号ADA4431-1YCPZ-R7的Datasheet PDF文件第7页 
Ultralow Power SD Video Filter  
with Load Detection  
ADA4431-1  
PIN CONFIGURATION  
FEATURES  
Third-order, low-pass video filter  
1 dB flatness out to 6 MHz  
27 dB rejection at 27 MHz  
Low quiescent current: 4.7 mA typical  
Low power-down current: 24 μA typical  
Load detection capability  
+V  
1
2
3
4
12 GND  
SUBS  
S
LOAD  
DETECT  
IN  
DIS  
11  
10 +V  
G = 2  
LPF  
SAG correction  
S
Allows use of smaller capacitors in ac-coupled outputs  
Low supply voltage: 2.5 V to 3.6 V  
Charge pump  
9
CAP1  
LDO  
CHARGE PUMP  
Creates a negative voltage from single positive supply  
Allows capless output coupling with no dc offset  
Rail-to-rail output  
High input-to-output isolation in disabled state  
89 dB @ 1 MHz  
Figure 1.  
+V  
S
Small package  
3 mm × 3 mm LFCSP  
Low 0.55 mm package height  
Wide operating temperature range: −40°C to +85°C  
0.1µF  
10  
+V  
0.1µF  
1
16  
4
+V  
S
S
FB1  
FB2  
LDO  
DIS  
SYSTEM  
CONTROLLER  
3
15  
ADA4431-1  
VIDEO  
OUT  
VIDEO  
DAC/  
ENCODER  
2
14 75Ω  
OUT  
SAG  
IN  
APPLICATIONS  
x1  
x2  
LPF  
Portable media players  
Portable gaming consoles  
Cell phones  
Digital still cameras  
Portable DVD players  
Portable video cameras  
13  
7
GND  
CAP4 CAP3 CAP2 CAP1 SUBS GND  
11 12  
5
6
8
9
0.1µF  
0.1µF  
1.0µF  
Figure 2. Typical Application Circuit  
GENERAL DESCRIPTION  
The ADA4431-1 is a fully integrated video reconstruction filter  
that combines excellent video specifications with low power  
consumption, making it ideal for portable video filtering  
applications. The ADA4431-1 is able to detect whether a video  
load is present at the output, powering down the device when  
the load is disconnected.  
When operating with the charge pump off, the ADA4431-1  
provides a dc offset to keep the sync tip approximately 100 mV  
above ground. In addition, the part features SAG correction,  
which permits the use of smaller capacitors in applications with  
ac-coupled outputs.  
The ADA4431-1 is packaged in a low profile 16-lead LFCSP and  
operates in the industrial temperature range of −40°C to +85°C.  
The ADA4431-1 operates on single supplies as low as 2.5 V  
while providing the dynamic range required by the most  
demanding video systems. The on-board charge pump  
provides a virtual negative supply, allowing the video signal to  
be dc-coupled and the black level to be set to ground, while the  
sync passes cleanly at 300 mV below ground.  
Rev. 0  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2007 Analog Devices, Inc. All rights reserved.  
 
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ADA4431-1YCPZ-R7 替代型号

型号 品牌 替代类型 描述 数据表
ADA4431-1YCPZ-R2 ADI

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