最新免费av在线观看,亚洲综合一区成人在线,中文字幕精品无码一区二区三区,中文人妻av高清一区二区,中文字幕乱偷无码av先锋

LM4941SD Datasheet

  • LM4941SD

  • National Semiconductor [1.25 Watt Fully Differential Audio ...

  • 381.01KB

  • NSC

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

LM4941 1.25 Watt Fully Differential Audio Power Amplifier With RF Suppression and Shutdown
March 2007
LM4941
鈥?/div>
1.25 Watt Fully Differential Audio Power Amplifier With RF
Suppression and Shutdown
General Description
The LM4941 is a fully differential audio power amplifier pri-
marily designed for demanding applications in mobile phones
and other portable communication device applications. It is
capable of delivering 1.25 watts of continuous average power
to a 8鈩?load with less than 1% distortion (THD+N) from a
5V
DC
power supply. The LM4941 does not require output
coupling capacitors or bootstrap capacitors, and therefore is
ideally suited for mobile phone and other small form factor
applications where minimal PCB space is a primary require-
ment.
The LM4941 also features proprietary internal circuitry that
suppresses the coupling of RF signals into the chip. This is
important because certain types of RF signals (such as GSM)
can couple into audio amplifiers in such a way that part of the
signal is heard through the speaker. The RF suppression cir-
cuitry in the LM4941 makes it well-suited for portable appli-
cations in which strong RF signals generated by an antenna
from or a cellular phone or other portable electronic device
may couple audibly into the amplifier.
Other features include a low-power consumption shutdown
mode, internal thermal shutdown protection, and advanced
pop & click circuitry.
Key Specifications
鈻犫€?/div>
Improved PSRR at 217Hz
鈻犫€?/div>
Power Output, V
DD
= 5.0V,
鈥?/div>
R
L
= 8鈩?
1% THD+N
鈻犫€?/div>
Power Output, V
DD
= 3.0V,
鈥?/div>
R
L
= 8鈩?
1% THD+N
鈻犫€?/div>
Shutdown Current
95dB (typ)
1.25W (typ)
430mW (typ)
0.1碌A(chǔ) (typ)
Features
鈻?/div>
Improved RF suppression, by up to 20dB over previous
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
designs in selected applications
Fully differential amplification
Available in space-saving micro SMD package
Ultra low current shutdown mode
Can drive capacitive loads up to 100pF
Improved pop & click circuitry eliminates noises during
turn-on and turn-off transitions
2.4 - 5.5V operation
No output coupling capacitors, snubber networks or
bootstrap capacitors required
Applications
鈻?/div>
Mobile phones
鈻?/div>
PDAs
鈻?/div>
Portable electronic devices
Typical Application
20170366
FIGURE 1. Typical Audio Amplifier Application Circuit
Boomer廬 is a registered trademark of National Semiconductor Corporation.
漏 2007 National Semiconductor Corporation
201703
www.national.com

LM4941SD 產(chǎn)品屬性

  • AB

  • 1

  • 1.25W

  • 2.4V 到 5.5V

  • 8ohm

  • -40°C 到 +85°C

  • LLP

  • 9

  • No SVHC (19-Dec-2011)

  • 1.25W

  • 4941

  • Bump

  • -40°C

  • 85°C

  • 1

  • 音頻

  • 5.5V

  • 2.4V

  • 表面安裝

  • 8ohm

  • 6mV

  • 6V

LM4941SD相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Pulse Width Modulated Control Circuit
    NSC
  • 英文版
    Pulse Width Modulated Control Circuit
    national
  • 英文版
    265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mod...
    NSC
  • 英文版
    265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mod...
    NATIONAL
  • 英文版
    ETC
  • 英文版
    1.6 Watt Audio Power Amplifier with Selectable Shutdown Logi...
    NSC
  • 英文版
    1.6 Watt Audio Power Amplifier with Selectable Shutdown Logi...
    NATIONAL
  • 英文版
    265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mod...
    NSC
  • 英文版
    265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mod...
    NATIONAL
  • 英文版
    1 Watt Audio Power Amplifier
    NSC
  • 英文版
    1 Watt Audio Power Amplifier
    NATIONAL
  • 英文版
    1 Watt Audio Power Amplifier
    NSC
  • 英文版
    1 Watt Audio Power Amplifier
    NATIONAL
  • 英文版
    1 Watt Audio Power Amplifier
    NSC
  • 英文版
    1 Watt Audio Power Amplifier
  • 英文版
    1W, Bypass-Capacitor-less Audio Amplifier with Internal Sele...
    NSC
  • 英文版
    1W, Bypass-Capacitor-less Audio Power Amplifier with Interna...
  • 英文版
    National Semiconductor [1 Watt Audio Power Amplifier]
    NSC
  • 英文版
    10kV ESD Rated, Dual 120 mW Headphone Amplifier
    NSC
  • 英文版
    LM4908 10kV ESD Rated Dual 120mW Headphone Amplifier
    NATIONAL

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(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

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(kù)提出的寶貴意見(jiàn)，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見(jiàn)一經(jīng)采納，將有感恩紅包奉上哦！