Datasheet > PA4220

PA4220

更新时间： 2022-12-01 05:24:15

品牌	Logo	应用领域
PROTEC		/
页数	文件大小	规格书
7页	190K
描述
Pop-Up and Shutdown Noise Suppressor

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

PA4220 数据手册

PA4220

ANALO G P RO DUCTS DIVIS IO N

Pop-Up and Shutdown Noise Suppressor

FEATURES

GENERAL DESCRIPTION

PA4220 is a low power (I_CC< 1μA) monolithic mixed signal

device. PA4220’s function is to control the power supply

transition noise in audio systems.

PA4220 boasts several features that make it a “one of a kind”

product on the market. Most prominent is the feature is that it

does not require any external signal to suppress POPUP

and SHUTDOWN Noise.



Extremely Low supply current (<1μA).

Shunt operation hence distortion free.

Instantaneous. Power-up and Power-down muting.

No external microcontroller signal needed.

ESD protected outputs.

1.5V to 5V supply operation.

Handle up to 3.5V RMS signal.

Compact 2 x 2 x 0.8mm 6L DFN.

Standard 8L SO-8 package.

PA4220 requires few external components for its operation,

working from low to medium supply voltages of up to 5V. The

ramp time of the supply should be greater than 50ms.

APPLICATIONS

On power-up and power-down the output of the amplifier

stage is switched to a convenient low impedance voltage rail

hence muting the amplifiers, preventing the audible pop, which

is normally heard in the headset or speakers.



Cell phones

PDA’s

Portable DVD players

Portable MP3 players

Notebook Audio

Set-top boxes

Digital Video Recorders

LCD TVs

PA4220 operates as a passive shunt device hence the

designer does not haveto worry about the device introducing

any kind ofnoise or distortioninto the system. It has extremely

low current consumption (<1uA).

Home Theater systems

PA4220 is equipped with ESD (Human Body Model)

protection circuitry on the outputs.

Pin Layout and Description

PA4220 is available as an 6L low profile 0.8mm DFN

package and 8L SO-8 package. It is specified for operation

over the -40° C to +85°C temperature range.

Pin#

Pin #

Description

Notes

DFN-6 SOIC-8

RCS

GND

Power ON delay capacitor

Ground

CH1 CH2

Functional Diagram

No Connect

V_CC

PA4220

Ch2

Ch1

Channel 2 control signal

Channel 1 control signal

No Connect

Startup

Shutdown

Control

Vcc

Cap

Vcc

Holding capacitor

V_CAP

V_CC

CH1

C2 = 100μF (Typ.)

C3 = 1μF (Max.)

R_CS

V_CAP

V_CC

GND

Ordering Information

Package

SOIC-8

DFN-6

Temp Range

Part Number

PA4220DQ-T7

PA4220DN-T7

CH2

CH1

-40 to +85°C

R_CS

GND

CH2

DFN-6

SOIC-8

Top View

561 E. Elliot Road #175 Chandler, AZ 85225 Tel: (480) 539-2900. Fax: (480) 632-1715

www.protekanalog.com

95027.Rev 0.0 12/10 PATENT PENDING; CONFIDENTIAL; COVERED BY NON DISCLOSURE AGREEMENT.

NOT FOR USE IN LIFE SUPPORT SYSTEMS

12 3 4 5 6 7

下载PDF

与PA4220相关器件

型号	品牌	描述	获取价格	数据表
PA4220DN-T7	PROTEC	Pop-Up and Shutdown Noise Suppressor	获取价格
PA4220DQ-T7	PROTEC	Pop-Up and Shutdown Noise Suppressor	获取价格
PA4252-50W	MTRONPTI	Class AB linear GaN, suitable for single channel modulation standards.	获取价格
PA4272.121HL	PULSE	Power Beads - PA4272.XXXHL Series	获取价格
PA4272.151HL	PULSE	Power Beads - PA4272.XXXHL Series	获取价格
PA42A	APEX	HIGH VOLTAGE POWER OPERATIONAL AMPLIFIERS	获取价格