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參數資料
| 型號： | LM4865MM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻控制 |
| 英文描述： | 750 mW Audio Power Amplifier with DC Volume Control and Headphone Switch |
| 中文描述： | 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO8 |
| 封裝： | 0.118 INCH WIDE, MSOP-8 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 340K |
| 代理商： | LM4865MM |
LM4865
750 mW Audio Power Amplifier with DC Volume Control
and Headphone Switch
General Description
The LM4865 is a mono bridged audio power amplifier with
DC volume control, capable of delivering 750 mW of continu-
ous average power into an 8
load with less than 1% THD
from a 5V power supply. Switching between bridged speaker
mode and headphone (single ended) mode is accomplished
via a headphone sense pin. In addition, LM4865 is set into
low current consumption shutdown mode (0.7 μA typical) by
lowering the DC Vol/SD pin to below 0.3V.
Boomer audio power amplifiers are designed specifically to
provide high power audio output, with quality sound, from a
low supply voltage source while requiring the minimal
amount of external components.
Applications
n
GSM phones and accessories, DECT, office phones
n
Hand held radio
n
Other portable audio devices
Key Specifications
n
P
O
at 1.0% THD+N into 8
(SOP): 750 mW (typ)
n
P
O
at 10% THD+N into 8
(SOP): 1W (typ)
n
Shutdown Current: 0.7 μA (typ)
Features
n
DC volume control
n
Headphone amplifier mode
n
“Click and pop” suppression
n
Shutdown control when volume control pin is low
n
Thermal shutdown protection
Typical Application
Connection Diagram
BOOMER
is a trademark of National Semiconductor Corporation.
DS101025-1
FIGURE 1. Typical Audio Amplifier
Application Circuit
MSOP, SOP Package
DS101025-2
Top View
Order Number LM4865M, LM4865MM
See NS Package Number M08A, MUA08A
December 1999
L
1999 National Semiconductor Corporation
DS101025
www.national.com
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| LM4866MT | 2.2W Stereo Audio Amplifier |
| LM4866MTE | 2.2W Stereo Audio Amplifier |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4865MM/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4865MMX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4865MMX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4865MX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4865MX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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