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參數資料
| 型號： | NCP2820 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 2.65W Filterless Class-D Audio Power Amplifier(2.65W單通道音頻放大器) |
| 中文描述： | 2.65W無濾波器D類音頻功率放大器（2.65W單通道音頻放大器） |
| 文件頁數： | 1/20頁 |
| 文件大小： | 222K |
| 代理商： | NCP2820 |
Semiconductor Components Industries, LLC, 2005
June, 2005 Rev. 2
1
Publication Order Number:
NCP2820/D
NCP2820
2.65 W Filterless ClassD
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
42 V noise floor, Aweighted, a clean listening is guaranteed no
matter the load sensitivity.
Features
Optimized PWM Output Stage: Filterless Capability
Efficiency up to 90%
Low 2.5 mA Typical Quiescent Current
Large Output Power Capability: 1.4 W with 8.0 Load and
THD+N < 1%
Wide Supply Voltage Range: 2.55.5 V Operating Voltage
High Performance, THD+N of 0.03% @ V
p
= 5.0 V,
R
L
= 8.0 , P
out
= 100 mW
Excellent PSRR (65 dB): No Need for Voltage Regulation
Surface Mounted Package 9Pin FlipChip CSP (SnPb and PbFree)
Fully Differential Design. Eliminates Two Input Coupling Capacitors
Very Fast Turn On/Off Times with Advanced Rising and Falling
Gain Technique
External Gain Configuration Capability
Internally Generated 250 kHz Switching Frequency
Short Circuit Protection Circuitry
“Pop and Click” Noise Protection Circuitry
Applications
Cellular Phone
Portable Electronic Devices
PDAs and Smart Phones
Portable Computer
http://onsemi.com
9PIN FLIPCHIP CSP
FC SUFFIX
CASE 499E
PIN CONNECTIONS
9Pin FlipChip CSP
1
A3
B3
C3
A2
B2
C2
A1
B1
C1
GND
INP
OUTM
VP
SD
OUTP
GND
INM
MARKING
DIAGRAM
XX
A
Y
WW = Work Week
= Device Code
= Assembly Location
= Year
XXXX
AYWW
1
VP
(Top View)
OUTM
OUTP
Cs
GND
R
i
R
i
SD
INP
INM
VP
Input from
Microcontroller
Audio
Input
from
DAC
3.7 mm
1.6 mm
Solution Size
Cs
R
i
R
i
See detailed ordering and shipping information on page 18 of
this data sheet.
ORDERING INFORMATION
相關PDF資料 |
PDF描述 |
|---|---|
| NCP2821 | 2.65 W Filterless with Selectable Gain Class(2.65W, 可選增益D類音頻放大器) |
| NCP2892 | 1.3 Watt Audio Power Amplifier with Fast Turn On Time(具有快速接通時間的1.3 W音頻功率放大器) |
| NCP300HSN34T1 | Voltage Detector Series |
| NCP300HSN35T1 | Voltage Detector Series |
| NCP300HSN36T1 | Voltage Detector Series |
相關代理商/技術參數 |
參數描述 |
|---|---|
| NCP2820AFCT2G | 功能描述:音頻放大器 CLSS D AUDIO AMP 1MS 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 |
| NCP2820D | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:2.65 W Filterless Class−D Audio Power Amplifier |
| NCP2820EVB | 功能描述:BOARD EVAL NCP2820 RoHS:是 類別:編程器，開發系統 >> 評估板 - 音頻放大器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| NCP2820FCT1 | 功能描述:音頻放大器 2.65W Mono Class D 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 |
| NCP2820FCT1G | 功能描述:音頻放大器 2.65W Mono Class D Audio Ind. Temp 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 |
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