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參數資料
| 型號： | NCP2821 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 2.65 W Filterless with Selectable Gain Class(2.65W, 可選增益D類音頻放大器) |
| 中文描述： | 2.65糯濾波與可選增益級（2.65W，可選增益?類音頻放大器） |
| 文件頁數： | 1/19頁 |
| 文件大小： | 247K |
| 代理商： | NCP2821 |
Semiconductor Components Industries, LLC, 2006
February, 2006 Rev. 0
1
Publication Order Number:
NCP2821/D
NCP2821
2.65 W Filterless with
Selectable Gain ClassD
Audio Amplifier
NCP2821 is a cost effective mono audio power amplifier designed
for portable communication device applications such as mobile
phones. The internal gain setting between 6 dB and 12 dB will also
save external gain setting resistors. To achieve a typical audio mono
application, you only need an external capacitor for filtering the power
supply. The NCP2821 processes analog inputs with a PWM technique
that lowers significantly output noise and THD.
This part is capable of delivering 2.65 W of continuous average
power to a 4.0 BTL load from a 5.0 V power supply. Operating on a
single 3 V supply, the output power stage can provide 500 mW to an
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 transducers. Its improved ClassD
technology makes it suitable for portable devices. With 90%
efficiency and very low shutdown current, it increases widely the
lifetime of your battery compared to a ClassAB solution. It also
minimizes the junction temperature.
It fully rejects “pop & click” noises with a fast startup time of 9 ms.
Added to a 65 dB PSRR, the NCP2821 audio power amplifier is
specifically designed to provide high quality output power from low
supply voltage, requiring only 1 external capacitor.
Features
Optimized PWM Output Stage: Filterless Capability
Selectable Gain of 6 dB or 12 dB: No Need for External Gain Setting
Resistors
Efficiency up to 90% and Low Quiescent Current
Maximum Battery Life and Minimum Heat
High Output Power Capability: 1.4 W with 8.0 Load
Wide Supply Voltage Range: 2.55.5 V Operating Voltage
High Performance, THD+N of 0.05%
Excellent PSRR (65 dB): No Need for Voltage Regulation
Surface Mounted Package 9Pin FlipChip CSP
Fully Differential Capability: No Need for Input Coupling Capacitor
Very Fast Turn On Time: 9.0 ms (typ)
“Pop and Click” Noise Protection Circuitry
Applications
Cellular Phone
Personal Computer
PDAs
Portable Electronic Devices
http://onsemi.com
9PIN FLIPCHIP CSP
FC SUFFIX
CASE 499AL
1
MARKING
DIAGRAM
MAU = Device Code
A
= Assembly Location
Y
= Year
WW
= Work Week
= PbFree Package
MAU
AYWW
A1
OUTM
OUTP
1 F
GND
SD
INP
INM
VP
Input from
Micro
controller
Audio
Input
from
DAC
2.7 mm
1.6 mm
Solution Size
Cs
See detailed ordering and shipping information on page 18 of
this data sheet.
ORDERING INFORMATION
PIN CONNECTIONS
9Pin FlipChip CSP
A3
B3
C3
A2
B2
C2
A1
B1
C1
GS
INP
OUTM
VP
SD
OUTP
GND
INM
VP
(Top View)
GS
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相關代理商/技術參數 |
參數描述 |
|---|---|
| NCP2821D | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:2.65 W Filterless with Selectable Gain Class−D Audio Amplifier |
| NCP2821FCT1G | 功能描述:音頻放大器 CLASS D AUDIO AMP RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| NCP2823 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Efficiency 3W Filterless Class D Audio Amplifier |
| NCP2823AFCT2G | 功能描述:音頻放大器 GRESHAM FCI AUDIO AMP RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| NCP2823AGEVB | 功能描述:音頻 IC 開發工具 NCP2823A EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
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