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NCP2820D PDF预览

NCP2820D

更新时间: 2024-11-08 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
22页 288K
描述
2.65 W Filterless Class−D Audio Power Amplifier

NCP2820D 数据手册

 浏览型号NCP2820D的Datasheet PDF文件第2页浏览型号NCP2820D的Datasheet PDF文件第3页浏览型号NCP2820D的Datasheet PDF文件第4页浏览型号NCP2820D的Datasheet PDF文件第5页浏览型号NCP2820D的Datasheet PDF文件第6页浏览型号NCP2820D的Datasheet PDF文件第7页 
NCP2820  
2.65 W Filterless Class−D  
Audio Power Amplifier  
The NCP2820 is a costeffective mono ClassD audio power  
amplifier capable of delivering 2.65 W of continuous average power  
to 4.0 from a 5.0 V supply in a Bridge Tied Load (BTL)  
configuration. Under the same conditions, the output power stage can  
provide 1.4 W to a 8.0 BTL load with less than 1% THD+N. For  
cellular handsets or PDAs it offers space and cost savings because no  
output filter is required when using inductive tranducers. With more  
than 90% efficiency and very low shutdown current, it increases the  
lifetime of your battery and drastically lowers the junction  
temperature.  
The NCP2820 processes analog inputs with a pulse width  
modulation technique that lowers output noise and THD when  
compared to a conventional sigmadelta modulator. The device allows  
independent gain while summing signals from various audio sources.  
Thus, in cellular handsets, the earpiece, the loudspeaker and even the  
melody ringer can be driven with a single NCP2820. Due to its low  
http://onsemi.com  
MARKING  
DIAGRAMS  
A3  
A1  
1
9PIN FLIPCHIP CSP  
1
FC SUFFIX  
CASE 499AL  
C1  
8
1
ZB MG  
1
42ꢁ ꢂV noise floor, Aweighted, a clean listening is guaranteed no  
matter the load sensitivity.  
8 PIN UDFN 2x2.2  
MU SUFFIX  
Features  
CASE 506AV  
Optimized PWM Output Stage: Filterless Capability  
Efficiency up to 90%  
A
Y
= Assembly Location  
= Year  
Low 2.5 mA Typical Quiescent Current  
Large Output Power Capability: 1.4 W with 8.0 Load (CSP) and  
THD + N < 1%  
WW = Work Week  
M
G
= Date Code  
= PbFree Package  
Wide Supply Voltage Range: 2.55.5 V Operating Voltage  
High Performance, THD+N of 0.03% @ V = 5.0 V,  
p
R = 8.0 , P = 100 mW  
L
out  
Excellent PSRR (65 dB): No Need for Voltage Regulation  
Surface Mounted Package 9Pin FlipChip CSPand UDFN8  
Fully Differential Design. Eliminates Two Input Coupling Capacitors  
ORDERING INFORMATION  
See detailed ordering and shipping information on page 20 of  
this data sheet.  
Very Fast Turn On/Off Times with Advanced Rising and Falling  
Cs  
Gain Technique  
External Gain Configuration Capability  
Internally Generated 250 kHz Switching Frequency  
VP  
Audio  
Input  
from  
R
R
i
i
INP  
INM  
OUTM  
OUTP  
Short Circuit Protection Circuitry  
DAC  
“Pop and Click” Noise Protection Circuitry  
PbFree Packages are Available  
SD  
Input from  
Microcontroller  
Applications  
Cellular Phone  
GND  
Portable Electronic Devices  
PDAs and Smart Phones  
Portable Computer  
Cs  
R
R
i
i
1.6 mm  
3.7 mm  
© Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
November, 2006 Rev. 5  
NCP2820/D  

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