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參數(shù)資料
| 型號： | LM4878IBP/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| 封裝： | MICRO, SMD-8 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 515K |
| 代理商： | LM4878IBP/NOPB |
LM4878
1 Watt Audio Power Amplifier in micro SMD package
with Shutdown Logic Low
General Description
The LM4878 is a bridge-connected audio power amplifier
capable of delivering1Wof continuous average power to an
8
load with less than .2% (THD) from a 5V power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. Since the LM4878 does not require
output coupling capacitors or bootstrap capacitors. It is op-
timally suited for low-power portable applications.
The LM4878 features an externally controlled, low-power
consumption shutdown mode, as well as an internal thermal
shutdown protection mechanism.
The unity-gain stable LM4878 can be configured by external
gain-setting resistors.
Key Specifications
j Power Output at 0.2% THD
1 W (typ)
j Shutdown Current
0.01 A (typ)
Features
n
Internal pulldown resistor on shutdown.
n
micro SMD package (see App. note AN-1112)
n
5V - 2V operation
n
No output coupling capacitors or bootstrap capacitors.
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Cellular Phones
n
Portable Computers
n
Low Voltage Audio Systems
Typical Application
Boomer is a registered trademark of National Semiconductor Corporation.
10136001
FIGURE 1. Typical Audio Amplifier Application Circuit
October 2002
LM4878
1
W
att
Audio
Power
Amplifier
in
micro
SMD
package
with
Shutdown
Logic
Low
2002 National Semiconductor Corporation
DS101360
www.national.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM4878IBPX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1 Watt Audio Power Amplifier in micro SMD package with Shutdown Logic Low |
| LM4878ITP | 功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4878ITP/NOPB | 功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4879 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LM4879 WAF | 制造商:Texas Instruments 功能描述: |
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