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參數(shù)資料
| 型號(hào)： | LM4881N |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 音頻／視頻放大 |
| 英文描述： | Dual 200 mW Headphone Amplifier with Shutdown Mode |
| 中文描述： | 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP8 |
| 封裝： | MDIP-8 |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大小： | 413K |
| 代理商： | LM4881N |
External Components Description
(Figure 1)
Compo-
nents
1. R
i
Functional Description
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 f
c
= 1 / (2
π
R
i
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 f
c
= 1 / (2
π
R
i
C
i
). Refer to the section,
Proper Selection of External
Components,
for and explanation of how to determine the value of C
i
.
Feedback resistance which sets closed-loop gain in conjuction with R
i
.
Supply bypass capacitor which provides power supply filtering. Refer to the
Application Information
section for proper placement and selection of the supply bypass capacitor.
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
.
Output coupling capacitor which blocks the DC voltage at the amplifier’s output. Forms a high pass
filter with R
L
at f
O
= 1/(2
π
R
L
C
O
)
2. C
i
3. R
f
4. C
S
5. C
B
6. C
O
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
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4881N/NOPB | 功能描述:IC AMP AUDIO PWR .3W STER 8DIP 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) |
| LM4882 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:250mW Audio Power Amplifier with Shutdown Mode |
| LM48820 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Ground-Referenced, Ultra Low Noise, Fixed Gain, 95mW Stereo Headphone Amplifier |
| LM48820TM | 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(lèi)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 |
| LM48820TM/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(lèi)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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