音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LM4889 Datasheet

  • LM4889

  • 1 Watt Audio Power Amplifier

  • 19頁

  • NSC

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

LM4889 1 Watt Audio Power Amplifier
June 2003
LM4889
1 Watt Audio Power Amplifier
General Description
The LM4889 is an audio power amplifier primarily designed
for demanding applications in mobile phones and other por-
table communication device applications. It is capable of
delivering 1 watt of continuous average power to an 8鈩?BTL
load with less than 2% distortion (THD+N) from a 5V
DC
power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. The LM4889 does not require output
coupling capacitors or bootstrap capacitors, and therefore is
ideally suited for mobile phone and other low voltage appli-
cations where minimal power consumption is a primary re-
quirement.
The LM4889 features a low-power consumption shutdown
mode, which is achieved by driving the shutdown pin with a
logic low. Additionally, the LM4889 features an internal ther-
mal shutdown protection mechanism.
The LM4889 contains advanced pop & click circuitry to
eliminate noise which would otherwise occur during turn-on
and turn-off transitions.
The LM4889 is unity-gain stable and can be configured by
external gain-setting resistors.
Key Specifications
j
Improved PSRR at 217Hz, 5 - 3.3V
j
Power Output at 5.0V & 2% THD
j
Power Output at 3.3V & 1% THD
j
Shutdown Current at 3.3 & 2.6V
75dB
1.0W(typ.)
400mW(typ.)
0.01碌A(chǔ)(typ.)
Features
n
Available in space-saving MSOP, SOIC, LLP, and micro
SMD packages
n
Ultra low current shutdown mode (3.3 to 2.6V - 0.01碌A(chǔ))
n
Can drive capacitive loads up to 500 pF
n
Improved pop & click circuitry eliminates noises during
turn-on and turn-off transitions
n
2.2 - 5.5V operation
n
No output coupling capacitors, snubber networks or
bootstrap capacitors required
n
Unity-gain stable
n
External gain configuration capability
Applications
n
Mobile Phones
n
PDAs
n
Portable electronic devices
Typical Application
20035801
FIGURE 1. Typical Audio Amplifier Application Circuit
Boomer
廬
is a registered trademark of National Semiconductor Corporation.
漏 2003 National Semiconductor Corporation
DS200358
www.national.com

LM4889相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！