參數(shù)資料
型號(hào): LM4871MWA
廠(chǎng)商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 音頻/視頻放大
英文描述: 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC
封裝: WAFER
文件頁(yè)數(shù): 9/15頁(yè)
文件大小: 454K
代理商: LM4871MWA
External Components Description (Figure 1)
Components
Functional Description
1.
R
i
Inverting input resistance that sets the closed-loop gain in conjunction with R
f. This resistor also forms a
high pass filter with C
i at fC= 1/(2π RiCi).
2.
C
i
Input coupling capacitor that blocks the DC voltage at the amplifiers input terminals. Also creates a highpass
filter with R
i at fc = 1/(2π RiCi). Refer to the section, Proper Selection of External Components, for an
explanation of how to determine the value of C
i.
3.
R
f
Feedback resistance that sets the closed-loop gain in conjunction with R
i.
4.
C
S
Supply bypass capacitor that provides power supply filtering. Refer to the Power Supply Bypassing section
for information concerning proper placement and selection of the supply bypass capacitor.
5.
C
B
Bypass pin capacitor that provides half-supply filtering. Refer to the section, Proper Selection of External
Components, for information concerning proper placement and selection of C
B.
Typical Performance Characteristics
LD Specific Characteristics
Note 11: This curve shows the LM4871LD’s thermal dissipation ability at different ambient temperatures given the exposed-DAP of the part is soldered to a plane
of 1oz. Cu with an area given in the label of each curve. This label also designates whether the plane exists on the same (top) layer as the chip, on the bottom layer,
or on both layers. Infinite heatsink and unattached (no heatsink) conditions are also shown.
LM4871LD
THD+N vs Output Power
DS100008-24
LM4871LD
THD+N vs Frequency
DS100008-23
LM4871LD
THD+N vs Frequency
DS100008-25
LM4871LD
THD+N vs Output Power
DS100008-26
LM4871LD
Power Dissipation vs Output Power
DS100008-27
LM4871LD (Note 11)
Power Derating Curve
DS100008-28
LM4871
www.national.com
3
相關(guān)PDF資料
PDF描述
LM4871N/NOPB 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP8
LM4872IBPX/NOPB 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8
LM4872IBP/NOPB 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8
LM4873MDC 1.1 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC
LM4873MWC 1.1 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4871MX 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
LM4871MX/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
LM4871N 功能描述:IC AMP AUDIO PWR 3W MONO AB 8DIP RoHS:是 類(lèi)別:集成電路 (IC) >> 線(xiàn)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)
LM4872 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:1 Watt Audio Power Amplifier in micro SMD package
LM4872IBP 功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:否 類(lèi)別:集成電路 (IC) >> 線(xiàn)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)