參數(shù)資料
型號(hào): LM4893M
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 音頻/視頻放大
英文描述: 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝: SO-8
文件頁(yè)數(shù): 6/22頁(yè)
文件大?。?/td> 687K
代理商: LM4893M
Application Information (Continued)
The LM4893 is unity-gain stable and requires no external
components besides gain-setting resistors, an input coupling
capacitor, and proper supply bypassing in the typical appli-
cation. However, if a closed-loop differential gain of greater
than 10 is required, a feedback capacitor (C4) may be
needed as shown in Figure 2 to bandwidth limit the amplifier.
This feedback capacitor creates a low pass filter that elimi-
nates possible high frequency oscillations. Care should be
taken when calculating the -3dB frequency in that an incor-
rect combination of R
3
and C
4
will cause rolloff before
20kHz. A typical combination of feedback resistor and ca-
pacitor that will not produce audio band high frequency rolloff
is R
3 = 20k
and C
4 = 25pf. These components result in a
-3dB point of approximately 320 kHz.
20038088
FIGURE 3. HIGHER GAIN AUDIO AMPLIFIER
LM4893
www.national.com
14
相關(guān)PDF資料
PDF描述
LM4893MM/NOPB 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10
LM4893MMX/NOPB 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10
LM4893ITL/NOPB 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9
LM4893ITLX/NOPB 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9
LM4894ITLX/NOPB 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4893MA 制造商:Texas Instruments 功能描述:AMP, POWER AUDIO, 1.1W, SMD, SOIC8
LM4893MA/NOPB 功能描述:IC AMP AUDIO PWR 1.1W MONO 8SOIC 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)
LM4893MABD 功能描述:BOARD EVALUATION LM4893MA RoHS:否 類(lèi)別:編程器,開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 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:1 系列:-
LM4893MM 制造商:Texas Instruments 功能描述:AMP AUDIO POWER 1.1W SMD LLP-10
LM4893MM/NOPB 功能描述:IC AMP AUDIO PWR 1.1W AB 10MSOP 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)