參數(shù)資料
型號(hào)： LM4881MDA
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC
封裝： DIE
文件頁(yè)數(shù)： 9/14頁(yè)
文件大小： 473K
代理商： LM4881MDA
External Components Description (Figure 1)
Compo-
nents
Functional Description
1. R
i
Inverting input resistance which sets the closed-loop gain in conjuction with R
f. This resistor also
forms a high pass filter with C
i at fc =1/(2πR iCi).
2. C
i
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also creates a
highpass filter with R
i at fc =1/(2πRiC i). Refer to the section, Proper Selection of External
Components, for and explanation of how to determine the value of C
i.
3. R
f
Feedback resistance which sets closed-loop gain in conjuction with R
i.
4. C
S
Supply bypass capacitor which provides power supply filtering. Refer to the Application Information
section for proper placement and selection of the supply bypass capacitor.
5. C
B
Bypass pin capacitor which provides half-supply filtering. Refer to the section, Proper Selection of
External Components, for information concerning proper placement and selection of C
B.
6. C
O
Output coupling capacitor which blocks the DC voltage at the amplifier’s output. Forms a high pass
filter with R
L at fO = 1/(2πRLCO)
Typical Performance Characteristics
THD+N vs Frequency
DS100005-3
THD+N vs Frequency
DS100005-4
THD+N vs Frequency
DS100005-5
THD+N vs Frequency
DS100005-6
THD+N vs Frequency
DS100005-7
THD+N vs Frequency
DS100005-8
LM4881
www.national.com
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相關(guān)PDF資料
PDF描述
LM4881N/NOPB 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP8
LM4882MMX/NOPB 0.48 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
LM4882MX/NOPB 0.48 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
LM4883SQ/NOPB 0.4 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4881MM 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
LM4881MM/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
LM4881MM/SL110729 制造商:Texas Instruments 功能描述:
LM4881MMX 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
LM4881MMX/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
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