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參數資料
| 型號： | LM4879 |
| 文件頁數： | 1/10頁 |
| 文件大?。?/td> | 323K |
| 代理商： | LM4879 |
LM4876
1.1W Audio Power Amplifier with Logic Low Shutdown
General Description
The LM4876 is a single 5V supply bridge-connected audio
power amplifier capable of delivering 1.1W (typ) of continu-
ous average power to an 8
load with 0.5% THD+N.
Like other audio amplifiers in the Boomer series, the LM4876
is designed specifically to provide high quality output power
with a minimal amount of external components. The LM4876
does not require output coupling capacitors, bootstrap ca-
pacitors, or snubber networks. It is perfectly suited for low-
power portable systems.
The LM4876 features an active low externally controlled,
micro-power shutdown mode. Additionally, the LM4876 fea-
tures an internal thermal shutdown protection mechanism.
For PCB space efficiency, the LM4876 is available in MSOP
and SO surface mount packages.
The unity-gain stable LM4876’s closed loop gain is set using
external resistors.
Key Specifications
j
THD+N at 1kHz for 1W continuous
average output power into 8
j
Output power at 1kHz into 8
with 10% THD+N
j
Shutdown current
j
Supply voltage range
0.5% (max)
1.5W (typ)
0.01μA (typ)
2.0V to 5.5V
Features
n
Does not require output coupling capacitors, bootstrap
capacitors, or snubber circuits
n
10-pin MSOP and 8-pin SO packages
n
Unity-gain stable
n
External gain set
Applications
n
Mobile Phones
n
Portable Computers
n
Desktop Computers
n
Low-Voltage Audio Systems
Typical Application
Connection Diagram
Boomer
is a registered trademark of National Semiconductor Corporation.
DS101299-1
FIGURE 1. Typical LM4876 Audio Amplifier Application
Circuit. Numbers in ( ) are specific to the 10-pin MSOP
package
Mini Small Outline MSOP Package
DS101299-25
Top View
Order Number LM4876MM
See NS Package Number MUB10A
Small Outline SO Package
DS101299-2
Top View
Order Number LM4876M
See NS Package Number M08A
August 2000
L
2000 National Semiconductor Corporation
DS101299
www.national.com
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相關PDF資料 |
PDF描述 |
|---|---|
| LM4879IBL | AUDIO AMPLIFIER|SINGLE|BGA|9PIN|PLASTIC |
| LM4879IBLX | AUDIO AMPLIFIER|SINGLE|BGA|9PIN|PLASTIC |
| LM4879IBP | AUDIO AMPLIFIER|SINGLE|BGA|8PIN|PLASTIC |
| LM4879IBPX | AUDIO AMPLIFIER|SINGLE|BGA|8PIN|PLASTIC |
| LM4879MM | AUDIO AMPLIFIER|SINGLE|TSSOP|10PIN|PLASTIC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4879 WAF | 制造商:Texas Instruments 功能描述: |
| LM4879IBL | 功能描述:IC AMP AUDIO PWR 1.1W MONO 9USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產品培訓模塊: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) |
| LM4879IBLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.1 Watt Audio Power Amplifier |
| LM4879IBP | 制造商:Texas Instruments 功能描述:AMP AUDIO BOOMER 1.1W SMD BUMP-8 |
| LM4879IBP/NOPB | 功能描述:IC AMP AUDIO PWR 1.1W MONO 8USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產品培訓模塊: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) |
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