參數(shù)資料
型號(hào)： LM4849MH
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 音頻控制
英文描述： Stereo 2W Audio Power Amplifiers with DC Volume Control and Input Mux
中文描述： 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
封裝： TSSOP-28
文件頁(yè)數(shù)： 1/19頁(yè)
文件大?。?/td> 690K
代理商： LM4849MH
LM4849
Stereo 2W Audio Power Amplifiers
with DC Volume Control and Input Mux
General Description
The LM4849 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 LM4849 incorporates a
DC volume control, stereo bridged audio power amplifiers,
and an input mux making it optimally suited for multimedia
monitors, portable radios, desktop, and portable computer
applications.
The LM4849 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 LM4849MH will
deliver 2W into 4
. See the Application Information section for LM4849MH
usage information.
Note 2:
An LM4849MH that has been properly mounted to the circuit board
and forced-air cooled will deliver 2.2W into 3
.
Key Specifications
j
P
O
at 1% THD+N
into 3
(Note2)
into 4
(Note1)
into 8
j
Single-ended mode - THD+N at 85mW
into 32
j
Shutdown Current
2.2W (typ)
2.0W (typ)
1.1W (typ)
1.0% (typ)
0.2μA (typ)
Features
n
DC Volume Control Interface
n
Input mux
n
Stereo switchable bridged/single-ended power amplifiers
n
“Click and pop” suppression circuitry
n
Thermal shutdown protection circuitry
Applications
n
Portable and Desktop Computers
n
Multimedia, LCD Monitors/TV
n
Portable Radios, PDAs, and Portable TVs
Connection Diagram
TSSOP Package
20076702
Top View
Order Number LM4849MH
See NS Package Number MXA28A for Exposed-DAP TSSOP
Boomer
is a registered trademark of NationalSemiconductor Corporation.
August 2003
L
2003 National Semiconductor Corporation
DS200767
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4849MH/NOPB 功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:是 類(lèi)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(lèi)型:H 類(lèi) 輸出類(lèi)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(lèi)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)
LM4849MHX/NOPB 功能描述:IC AMP AUDIO PWR 2.2W AB 28TSSOP RoHS:是 類(lèi)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(lèi)型:H 類(lèi) 輸出類(lèi)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(lèi)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)
LM4850 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Mono 1.5 W / Stereo 300 mW Power Amplifier
LM4850A E WAF 制造商:Texas Instruments 功能描述:
LM4850LD 制造商:Rochester Electronics LLC 功能描述:1.5W MON AUD&95MW HEADPHN AMP - Bulk
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