參數(shù)資料
型號: LM4854MT/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: 0.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO14
封裝: TSSOP-14
文件頁數(shù): 17/29頁
文件大?。?/td> 1440K
代理商: LM4854MT/NOPB
Application Information (Continued)
The product of the desired high frequency cutoff (100kHz in
this example) and the differential gain AVD, determines the
upper passband response limit. With AVD = 3 and fH =
100kHz, the closed-loop gain bandwidth product (GBWP) is
300kHz. This is less than the LM4854’s 3.5MHz GBWP. With
this margin, the amplifier can be used in designs that require
more differential gain while avoiding performance restricting
bandwidth limitations.
RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT
Figures 5 through 9 show the recommended four-layer PC
board layout that is optimized for the micro SMD-packaged
LM4854 and associated external components. Figures 10
through 12 show the recommended two-layer PC board
layout that is optimized for the TSSOP-packaged LM4854
and associated external components. Figures 13 through 17
show the recommended four-layer PC board layout that is
optimized for the LLP-packaged LM4854 and associate ex-
ternal components.
These circuits are designed for use with an external 5V
supply and 8
(min) speakers.These circuit boards are easy
to use. Apply 5V and ground to the board’s V
DD and GND
pads, respectively. Connect a speaker between the board’s
L-OUT and BTL-OUT or headphones to the headphone jack
(L-OUT and R-OUT outputs).
Demonstration Board Layout
20038221
FIGURE 5. Recommended microSMD PC Board
Layout:
Component-Side SilkScreen
20038222
FIGURE 6. Recommended microSMD PC Board
Layout:
Component-Side Layout
20038223
FIGURE 7. Recommended microSMD PC Board
Layout:
Upper Inner-Layer Layout
20038224
FIGURE 8. Recommended microSMD PC Board
Layout:
Lower Inner-Layout Layer
LM4854
www.national.com
24
相關(guān)PDF資料
PDF描述
LM4854MTX/NOPB 0.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO14
LM4854LD/NOPB 0.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO14
LM4854LDX/NOPB 0.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO14
LM4856LQ/NOPB 1.5 W, 3 CHANNEL, AUDIO AMPLIFIER, QCC24
LM4856ITL/NOPB 1.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PBGA18
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4854MTX/NOPB 功能描述:IC AMP AUDIO PWR 2.3W AB 14TSSOP 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,2-通道(立體聲) 在某負(fù)載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C,麥克風(fēng),靜音,短路保護,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)
LM4855 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Boomer AUDIO POWER AMPLIFIER Integrated Audio Amplifier System
LM48555 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ceramic Speaker Driver
LM48555TL 制造商:Texas Instruments 功能描述:Audio Amp Speaker 1-CH Mono Class-AB 12-Pin uSMD T/R 制造商:Texas Instruments 功能描述:IC AMP POWER AUDIO SMD
LM48555TL/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel