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參數資料
| 型號： | LM4883SQ/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.4 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24 |
| 封裝： | LLP-24 |
| 文件頁數： | 1/23頁 |
| 文件大?。?/td> | 1244K |
| 代理商： | LM4883SQ/NOPB |
LM4883
Dual 2.1W Audio Amplifier Plus Stereo Headphone
Function
General Description
The LM4883 is a dual bridge-connected audio power ampli-
fier which, when connected to a 5V supply, will deliver 2.1W
toa4
than 1.0% THD+N. In addition, the headphone input pin
allows the amplifiers to operate in single-ended mode when
driving stereo headphones. A MUX control pin allows selec-
tion between the two stereo sets of amplifier inputs. The
MUX control can also be used to select two different closed-
loop responses.
Boomer audio power amplifiers were designed specifically to
provide high quality output power from a surface mount
package while requiring few external components. To sim-
plify audio system design, the LM4883SQ combines dual
bridge speaker amplifiers and stereo headphone amplifiers
on one chip.
The LM4883SQ features an internally controlled, low-power
consumption shutdown mode, a stereo headphone amplifier
mode, and thermal shutdown protection. It also utilizes cir-
cuitry to reduce “clicks and pops” during device turn-on.
Note 1: An LM4883SQ that has been properly mounted to a circuit board
will deliver 2.1W into 4
. See the Application Information sections for further
information concerning the LM4883SQ.
Note 2: An LM4883SQ that has been properly mounted to a circuit board
and forced-air cooled will deliver 2.4W into 3
.
Key Specifications
j PO at 1% THD+N
R
L =3
2.4W (typ)
R
L =4
2.1W (typ)
R
L =8
1.3W (typ)
j Single-ended mode THD+N
at 75mW into 32
(5V, 1kHz)
0.01% (typ)
j Shutdown current
0.04A (typ)
j Supply voltage range
2.4V to 5.5V
j PSRR at 217Hz
85dB (typ)
Features
n
Input mux control and two separate inputs per channel
n
Stereo headphone amplifier mode
n
Improved “click and pop” suppression circuitry
n
Thermal shutdown protection circuitry
n
PCB area-saving SQ package
Applications
n
Multimedia monitors
n
Portable and desktop computers
n
Portable audio systems
Connection Diagrams
LM4883SQ
LM4883SQ Top Mark
200887A3
Top View
Order Number LM4883SQ
See NS Package Number SQA24B
200887C6
Top View
U = Fab Code
Z = Assembly Plant Code
XY = Date Code
TT = Die Traceability
Boomer is a registered trademark of National Semiconductor Corporation.
November 2004
LM4883
Dual
2.1W
Audio
Amplifier
Plus
Stereo
Headphone
Function
2004 National Semiconductor Corporation
DS200887
www.national.com
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| LM4889ITL/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| LM4889ITLX/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4883SQX/NOPB | 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產品培訓模塊: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 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4884 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:2.1W Differential Input, BTL Output Stereo Audio Amplifier with RF Suppression and Shutdown |
| LM4884A E WAF | 制造商:Texas Instruments 功能描述: |
| LM4884MH | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:2.1W Differential Input, BTL Output Stereo Audio Amplifier with RF Suppression and Shutdown |
| LM4884MH/NOPB | 功能描述:IC AMP AUDIO 2.6W STER 20TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產品培訓模塊: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 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
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