參數(shù)資料
型號(hào)： LM4905MM
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 音頻／視頻放大
英文描述： 1 Watt Audio Power Amplifier
中文描述： 1.07 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8
封裝： MSOP-8
文件頁(yè)數(shù)： 5/17頁(yè)
文件大?。?/td> 686K
代理商： LM4905MM
External Components Description
(
Figure 1
)
Components
1.
Functional Description
R
i
Inverting input resistance which sets the closed-loop gain in conjunction 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 amplifiers 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 an explanation of how to determine the value of C
i
.
Feedback resistance which sets the closed-loop gain in conjunction with R
i
.
Supply bypass capacitor which provides power supply filtering. Refer to the
Power Supply Bypassing
section for information concerning 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
.
2.
C
i
3.
4.
R
f
C
S
5.
C
B
Typical Performance Characteristics
THD+N vs Frequency
at V
DD
= 5V, 8
R
L
, and PWR = 500mW
THD+N vs Frequency
at V
DD
= 3V, 8
R
L
, and PWR = 250mW
20050830
20050831
THD+N vs Frequency
at V
DD
= 2.6V, 8
R
L
, and PWR = 150mW
THD+N vs Power Out
at V
DD
= 5V, 8
R
L
, 1kHz
20050832
20050834
L
www.national.com
5
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4905MM/NOPB 功能描述:IC AMP AUDIO PWR 1.07W AB 8MSOP 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)
LM4906 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:1W, Bypass-Capacitor-less Audio Amplifier with Internal Selectable Gain
LM4906GR 制造商:Rochester Electronics LLC 功能描述:- Bulk
LM4906LD 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:1W, Bypass-Capacitor-less Audio Amplifier with Internal Selectable Gain
LM4906LD/NOPB 功能描述:IC AMP AUDIO PWR 1W MONO 10LLP 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)
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