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

LM4915 Datasheet

  • LM4915

  • Pseudo-Differential Mono Headphone Amplifier with Fixed 6dB ...

  • 11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

LM4915 Pseudo-Differential Mono Headphone Amplifier with Fixed 6dB Gain
May 2003
LM4915
Pseudo-Differential Mono Headphone Amplifier with
Fixed 6dB Gain
General Description
The LM4915 is a pseudo-differential audio power amplifier
primarily designed for demanding applications in mobile
phones and other portable audio device applications with
mono headphones. It is capable of delivering 90 miliwatts of
continuous average power to a 32鈩?BTL load with less than
1% distortion (THD+N) from a 3V
DC
power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. The LM4915 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 LM4915 features a low-power consumption shutdown
mode. To facilitate this, Shutdown may be enabled by driving
the shutdown pin low. Additionally, the LM4915 features an
internal thermal shutdown protection mechanism.
The LM4915 contains advanced pop & click circuitry which
virtually eliminates noises which would otherwise occur dur-
ing turn-on and turn-off transitions.
The LM4915 has an internally fixed gain of 6dB.
Key Specifications
n
n
n
n
Improved PSRR at 217Hz and 1kHz
75dB (typ)
Power Output at 5.0V & 1% THD into 32鈩?280mW (typ)
Power Output at 3.0V & 1% THD into 32鈩?90mW (typ)
Output Noise, A-weighted
20碌V (typ)
Features
Pseudo-differential amplification
Internal gain-setting resistors
Available in space-saving LLP package
Ultra low current shutdown mode
Can drive capacitive loads up to 500pF
Improved pop & click circuitry virtually eliminates noises
during turn-on and turn-off transitions
n
2.2 - 5.5V operation
n
No output coupling capacitors, snubber networks,
bootstrap capacitors or gain-setting resistors required
n
Ultra low noise
n
n
n
n
n
n
Applications
n
Mobile phones
n
PDAs
n
Portable electronics devices
Typical Application
200482B4
FIGURE 1. Typical Audio Amplifier Application Circuit
Boomer
廬
is a registered trademark of National Semiconductor Corporation.
漏 2003 National Semiconductor Corporation
DS200482
www.national.com

LM4915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！