參數(shù)資料
型號(hào)： LM4883
廠商： National Semiconductor Corporation
元件分類： 音頻放大器
英文描述： Dual 2.1W Audio Amplifier Plus Stereo Headphone
中文描述： 雙2.1W音頻功率放大器加立體聲耳機(jī)
文件頁(yè)數(shù)： 1/23頁(yè)
文件大?。?/td> 1244K
代理商： LM4883
LM4883
Dual 2.1W Audio Amplifier Plus Stereo Headphone
Function
General Description
The LM4883 is a dual bridge-connected audio power ampli-
fier which, when connected to a 5V supply, will deliver 2.1W
to a 4
load (Note 1) or 2.4W to a 3
load (Note 2) with less
than 1.0% THD+N. In addition, the headphone input pin
allows the amplifiers to operate in single-ended mode when
driving stereo headphones. A MUX control pin allows selec-
tion between the two stereo sets of amplifier inputs. The
MUX control can also be used to select two different closed-
loop responses.
Boomer audio power amplifiers were designed specifically to
provide high quality output power from a surface mount
package while requiring few external components. To sim-
plify audio system design, the LM4883SQ combines dual
bridge speaker amplifiers and stereo headphone amplifiers
on one chip.
The LM4883SQ features an internally controlled, low-power
consumption shutdown mode, a stereo headphone amplifier
mode, and thermal shutdown protection. It also utilizes cir-
cuitry to reduce “clicks and pops” during device turn-on.
Note 1:
An LM4883SQ that has been properly mounted to a circuit board
will deliver 2.1W into 4
. See the Application Information sections for further
information concerning the LM4883SQ.
Note 2:
An LM4883SQ that has been properly mounted to a circuit board
and forced-air cooled will deliver 2.4W into 3
.
Key Specifications
j
P
O
at 1% THD+N
R
L
= 3
R
L
= 4
R
L
= 8
j
Single-ended mode THD+N
at 75mW into 32
(5V, 1kHz)
j
Shutdown current
j
Supply voltage range
j
PSRR at 217Hz
2.4W (typ)
2.1W (typ)
1.3W (typ)
0.01% (typ)
0.04μA (typ)
2.4V to 5.5V
85dB (typ)
Features
n
Input mux control and two separate inputs per channel
n
Stereo headphone amplifier mode
n
Improved “click and pop” suppression circuitry
n
Thermal shutdown protection circuitry
n
PCB area-saving SQ package
Applications
n
Multimedia monitors
n
Portable and desktop computers
n
Portable audio systems
Connection Diagrams
LM4883SQ
LM4883SQ Top Mark
200887A3
Top View
Order Number LM4883SQ
See NS Package Number SQA24B
200887C6
Top View
U = Fab Code
Z = Assembly Plant Code
XY = Date Code
TT = Die Traceability
Boomer
is a registered trademark of National Semiconductor Corporation.
November 2004
L
2004 National Semiconductor Corporation
DS200887
www.national.com
相關(guān)PDF資料
PDF描述
LM4883SQ Dual 2.1W Audio Amplifier Plus Stereo Headphone
LM4889 1 Watt Audio Power Amplifier
LM4890IBLX GT 3C 3#16S SKT RECP WALL RM
LM4890ITLX 1 Watt Audio Power Amplifier
LM4890LD 1 Watt Audio Power Amplifier
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4883A E WAF 制造商:Texas Instruments 功能描述:
LM4883SQ 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 2.1W Audio Amplifier Plus Stereo Headphone
LM4883SQ/NOPB 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
LM4883-SQ_BOM-001A 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Demo Board
LM4883SQX/NOPB 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*