Datasheet > ADA4431-1YCPZ-RL

ADA4431-1YCPZ-RL

更新时间： 2024-11-23 04:31:15

品牌	Logo	应用领域
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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替代型号

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ADA4431-1YCPZ-RL 数据手册

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

12 GND

SUBS

LOAD

DETECT

DIS

10 +V

G = 2

LPF

SAG correction

Allows use of smaller capacitors in ac-coupled outputs

Low supply voltage: 2.5 V to 3.6 V

Charge pump

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.

Small package

3 mm × 3 mm LFCSP

Low 0.55 mm package height

Wide operating temperature range: −40°C to +85°C

0.1µF

FB1

FB2

LDO

DIS

SYSTEM

CONTROLLER

ADA4431-1

VIDEO

OUT

VIDEO

DAC/

ENCODER

14 75Ω

OUT

SAG

APPLICATIONS

LPF

Portable media players

Portable gaming consoles

Cell phones

Digital still cameras

Portable DVD players

Portable video cameras

GND

CAP4 CAP3 CAP2 CAP1 SUBS GND

11 12

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

12 3 4 5 6 7...12

中文翻译

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ADA4431-1YCPZ-RL 替代型号

型号	品牌	替代类型	描述	数据表
ADA4431-1YCPZ-R2	ADI	完全替代	Ultralow Power SD Video Filter with Load Detection
ADA4431-1YCPZ-R7	ADI	类似代替	Ultralow Power SD Video Filter with Load Detection

与ADA4431-1YCPZ-RL相关器件

型号	品牌	获取价格	描述	数据表
ADA4432-1	ADI	获取价格	SD Video Filter Amplifiers
ADA4432-1BCP-EBZ	ADI	获取价格	SD Video Filter Amplifiers
ADA4432-1BCPZ-R2	ADI	获取价格	SD Video Filter Amplifiers
ADA4432-1BCPZ-R7	ADI	获取价格	SD Video Filter Amplifiers
ADA4432-1BRJ-EBZ	ADI	获取价格	SD Video Filter Amplifiers
ADA4432-1BRJZ-R2	ADI	获取价格	SD Video Filter Amplifiers
ADA4432-1BRJZ-R7	ADI	获取价格	SD Video Filter Amplifiers
ADA4432-1WBCPZ-R7	ADI	获取价格	SD Video Filter Amplifiers
ADA4432-1WBRJZ-R7	ADI	获取价格	SD Video Filter Amplifiers
ADA4433-1	ADI	获取价格	SD Video Filter Amplifiers

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