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參數(shù)資料
| 型號： | LM4960SQ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Piezoelectric Speaker Driver |
| 中文描述： | 1 CHANNEL, AUDIO AMPLIFIER, PQCC28 |
| 封裝： | PLASTIC, LLP-28 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 348K |
| 代理商： | LM4960SQ |
LM4960
Piezoelectric Speaker Driver
General Description
The LM4960 utilizes a switching regulator to drive a dual
audio power amplifier. It delivers 24V
mono-BTL to a
ceramic speaker with less than 1.0% THD+N while operating
on a 3.0V power supply.
The LM4960’s switching regulator is a current-mode boost
converter operating at a fixed frequency of 1.6MHz.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. The LM4960 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 LM4960 features a low-power consumption externally
controlled micropower shutdown mode. Additionally, the
LM4960 features and internal thermal shutdown protection
mechanism along with a short circuit protection.
The LM4960 is unity-gain stable and can be configured by
external gain-setting resistors.
Key Specifications
n
V
OUT
@
V
DD
= 3.0 THD+N
≤
1%
n
Power supply range
n
Switching Frequency
24V
P-P
(typ)
3.0 to 7V
1.6MHz (typ)
Features
n
Stereo BTL amplifier
n
Low current shutdown mode
n
"Click and pop" suppression circuitry
n
Low Quiescent current
n
Unity-gain stable audio amplifiers
n
External gain configuration capability
n
Thermal shutdown protection circuitry
n
Wide input voltage range (3.0V - 7V)
n
1.6MHz switching frequency
Applications
n
Mobile phone
n
PDA’s
Connection Diagram
LM4960SQ
20076582
Top View
Order Number LM4960SQ
See NS Package Number
Boomer
is a registered trademark of National Semiconductor Corporation.
October 2004
L
2004 National Semiconductor Corporation
DS200765
www.national.com
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| LM4970 | Audio Synchronized Color LED Driver |
| LM4990ITL | 2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4960SQ/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4960SQX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4960SQX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4961 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ceramic Speaker Driver |
| LM4961LQ | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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