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NCP4894FCT1G

更新时间： 2024-11-23 04:13:39
品牌 Logo 应用领域
安森美 - ONSEMI 放大器功率放大器
页数 文件大小 规格书
18页 165K
描述
1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown

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NCP4894FCT1G 数据手册

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NCP4894  
1.8 Watt Differential Audio  
Power Amplifier with  
Selectable Shutdown  
The NCP4894 is a differential audio power amplifier designed for  
portable communication device applications. This feature and the  
excellent audio characteristics of the NCP4894 are a guarantee of a  
high quality sound, for example, in mobile phones applications. With  
a 10% THD+N value the NCP4894 is capable of delivering 1.8 W of  
continuous average power to an 8.0 W load from a 5.5 V power  
supply. With the same load conditions and a 5.0 V battery voltage, it  
ensures 1.0 W to be delivered with less than 0.01% distortion.  
The NCP4894 provides high quality audio while requiring few  
external components and minimal power consumption. It features a  
low−power consumption shutdown mode.  
To be flexible, shutdown may be enabled by either a logic high or  
low depending on the voltage applied on the SD MODE pin.  
The NCP4894 contains circuitry to prevent from “pop and click”  
noise that would otherwise occur during turn−on and turn−off  
transitions.  
http://onsemi.com  
MARKING  
DIAGRAMS  
A3  
9−PIN FLIP−CHIP  
FC SUFFIX  
xxxG  
AYWW  
1
CASE 499AL  
C1  
A1  
xxxx  
AYWG  
G
Micro−10  
DM SUFFIX  
CASE 846B  
8
For maximum flexibility, the NCP4894 provides an externally  
controlled gain (with resistors), as well as an externally controlled  
turn−on time (with bypass capacitor).  
1
Due to its excellent PSRR, it can be directly connected to the  
battery, saving the use of an LDO.  
This device is available in 9−Pin Flip−Chip, Micro−10 and DFN10  
DFN10  
MN SUFFIX  
CASE 485C  
1
xxx  
ALYWG  
G
3x3 mm packages.  
1
Features  
xxxx  
A
L
= Specific Device Code  
= Assembly Location  
= Wafer Lot  
• Differential Amplification  
• Shutdown High or Low Selectivity  
• 1.0 W to an 8.0 W Load from a 5.0 V Power Supply  
• Superior PSRR: Direct Connection to the Battery  
• “Pop and Click” Noise Protection Circuit  
• Ultra Low Current Shutdown Mode  
• 2.2 V−5.5 V Operation  
Y
= Year  
W, WW = Work Week  
G
= Pb−Free Package  
(Note: Microdot may be in either location)  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 14 of this data sheet.  
• External Gain Configuration Capability  
• External Turn−on Configuration Capability  
• Thermal Overload Protection Circuitry  
• Pb−Free Packages are Available  
Typical Applications  
• Portable Electronic Devices  
• PDAs  
• Mobile Phones  
©
Semiconductor Components Industries, LLC, 2005  
1
Publication Order Number:  
November, 2005 − Rev. 8  
NCP4894/D  
1234567...18

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NCP4894FCT1G 替代型号

型号 品牌 替代类型 描述 数据表
NCP4894FCT1 ONSEMI

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 1.8 Watt Differential Audio Power Amplifier with Selectable Shutdown

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