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參數資料
型號: LM4834MS/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
封裝: SSOP-28
文件頁數: 1/14頁
文件大?。?/td> 497K
代理商: LM4834MS/NOPB
LM4834
1.75W Audio Power Amplifier with DC Volume Control
and Microphone Preamp
General Description
The LM4834 is a monolithic integrated circuit that provides
DC volume control, and a bridged audio power amplifier
capable of producing 1.75W into 4
with less than 1.0%
(THD). In addition, the headphone/lineout amplifier is ca-
pable of driving 70 mW into 32
with less than 0.1%(THD).
The LM4834 incorporates a volume control and an input
microphone preamp stage capable of drivinga1k
load
impedance.
Boomer audio integrated circuits were designed specifically
to provide high quality audio while requiring a minimum
amount of external components in surface mount packaging.
The LM4834 incorporates a DC volume control, a bridged
audio power amplifier and a microphone preamp stage,
making it optimally suited for multimedia monitors and desk-
top computer applications.
The LM4834 features an externally controlled, low-power
consumption shutdown mode, and both a power amplifier
and headphone mute for maximum system flexibility and
performance.
Key Specifications
n
THD at 1.1W continuous average output power into 8
at 1kHz
0.5% (max)
n
Output Power into 4
at 1.0% THD+N
1.75W (typ)
n
THD at 70mW continuous average output power into
32
at 1kHz
0.1% (typ)
n
Shutdown Current
1.0A (max)
n
Supply Current
17.5mA (typ)
Features
n
PC98 Compliant
n
“Click and Pop” suppression circuitry
n
Stereo line level outputs with mono input capability for
system beeps
n
Microphone preamp with buffered power supply
n
DC Volume Control Interface
n
Thermal shutdown protection circuitry
Applications
n
Multimedia Monitors
n
Desktop and Portable Computers
Block Diagram
Connection Diagram
SSOP Package
10001502
Top View
Order Number LM4834MS
See NS Package Number MSA028CB for SSOP
Boomer is a registered trademark of NationalSemiconductor Corporation.
10001501
FIGURE 1. LM4834 Block Diagram
August 2000
LM4834
1.75W
Audio
Power
Amplifier
with
DC
V
olume
Control
and
Microphone
Preamp
2004 National Semiconductor Corporation
DS100015
www.national.com
相關PDF資料
PDF描述
LM4835MDC 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, UUC
LM4835MWC 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, UUC
LM4835MTE/NOPB 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
LM4835MTEX/NOPB 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
LM4835MT/NOPB 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
相關代理商/技術參數
參數描述
LM4834MSX/NOPB 功能描述:IC AMP AUDIO PWR 1.1W AB 28SSOP 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)
LM4835 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 2W Audio Power Amplifiers with DC Volume Control and Selectable Gain
LM4835LQ/NOPB 功能描述:IC AMP AUDIO PWR 2.2W STER 28LLP 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)
LM4835MT 功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:否 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)
LM4835MT/NOPB 功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP 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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