參數資料
型號： LM4839LQX/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻控制
英文描述： 2 CHANNEL(S), TONE CONTROL CIRCUIT, CQCC28
封裝： LLP-28
文件頁數： 1/34頁
文件大?。?/td> 1104K
代理商： LM4839LQX/NOPB
LM4839
Stereo 2W Audio Power Amplifiers
with DC Volume Control, Bass Boost, and Input Mux
General Description
The LM4839 is a monolithic integrated circuit that provides
DC volume control, and stereo bridged audio power amplifi-
ers capable of producing 2W into 4
(Note 1) with less than
1.0% THD+N, or 2.2W into 3
(Note 2) with less than 1.0%
THD+N.
Boomer audio integrated circuits were designed specifically
to provide high quality audio while requiring a minimum
amount of external components. The LM4839 incorporates a
DC volume control, stereo bridged audio power amplifiers,
selectable gain or bass boost, and an input mux making it
optimally suited for multimedia monitors, portable radios,
desktop, and portable computer applications.
The LM4839 features an externally controlled, low-power
consumption shutdown mode, and both a power amplifier
and headphone mute for maximum system flexibility and
performance.
Note 1: When properly mounted to the circuit board, the LM4839LQ and
LM4839MTE will deliver 2W into 4
. The LM4839MT will deliver 1.1W into
8
. See the Application Information section for LM4839LQ and LM4839MTE
usage information.
Note 2: An LM4839LQ and LM4839MTE that have been properly mounted
to the circuit board and forced-air cooled will deliver 2.2W into 3
.
Key Specifications
n
P
O at 1% THD+N
n
into 3
(LQ & MTE)
2.2W(typ)
n
into 4
(LQ & MTE)
2.0W(typ)
n
into 8
(LM4839) (MT, MTE, & LQ)
1.1W(typ)
n
Single-ended mode - THD+N at 85mW into
32
1.0%(typ)
n
Shutdown current
0.2A(typ)
Features
n
DC Volume Control Interface
n
Input mux
n
System Beep Detect
n
Stereo switchable bridged/single-ended power amplifiers
n
Selectable internal/external gain and bass boost
n
“Click and pop” suppression circuitry
n
Thermal shutdown protection circuitry
Applications
n
Portable and Desktop Computers
n
Multimedia Monitors
n
Portable Radios, PDAs, and Portable TVs
Connection Diagrams
Boomer is a registered trademark of NationalSemiconductor Corporation.
LLP Package
DS200134-83
Top View
Order Number LM4839LQ
See NS Package Number LQA028AA for Exposed-DAP LLP
April 2002
LM4839
Stereo
2W
Audio
Power
Amplifiers
with
DC
V
olume
Control,
Bass
Boost,
and
Input
Mux
2002 National Semiconductor Corporation
DS200134
www.national.com
相關PDF資料
PDF描述
LM4840LQX/NOPB 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28
LM4840LQ/NOPB 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, QCC28
LM4840MTX/NOPB 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
LM4840MT/NOPB 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
LM4840MHX/NOPB 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
相關代理商/技術參數
參數描述
LM4839MT 制造商:Texas Instruments 功能描述:Stereo 1.1W Audio Amplifiers,LM4839MT
LM4839MT/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)
LM4839MTBD 功能描述:BOARD EVALUATION LM4839MT RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 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:1 系列:-
LM4839MTE 制造商:Texas Instruments 功能描述:AMP AUDIO STEREO 2.2W SMD TSSOP28
LM4839MTE/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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