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參數(shù)資料
| 型號： | LM4893 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.1 Watt Audio Power Amplifier |
| 中文描述： | 1.1瓦音頻功率放大器 |
| 文件頁數(shù)： | 14/22頁 |
| 文件大?。?/td> | 705K |
| 代理商： | LM4893 |
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
L
www.national.com
14
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4893ITL | 1.1 Watt Audio Power Amplifier |
| LM4893ITLX | 1.1 Watt Audio Power Amplifier |
| LM4893MA | 1.1 Watt Audio Power Amplifier |
| LM4893MM | 1.1 Watt Audio Power Amplifier |
| LM4897 | 1.1 Watt Audio Power Amplifier with Fade-In and Fade-Out |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4893ITL | 制造商:Texas Instruments 功能描述:AMP POWER AUDIO 1.1W SMD BUMP-9 |
| LM4893ITL/NOPB | 功能描述:IC AMP AUDIO PWR 1.1W MONO 9USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)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(shù)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(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4893ITLBD | 功能描述:BOARD EVALUATION LM4893ITL 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(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| LM4893ITLX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.1 Watt Audio Power Amplifier |
| LM4893MA | 制造商:Texas Instruments 功能描述:AMP, POWER AUDIO, 1.1W, SMD, SOIC8 |
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