- 您现在的位置：买卖IC网 > PDF目录30755 > LM4888SQ/NOPB (NATIONAL SEMICONDUCTOR CORP) 3 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24 PDF资料下载
参数资料
| 型号： | LM4888SQ/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 3 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24 |
| 封装： | LLP-24 |
| 文件页数： | 1/23页 |
| 文件大小： | 1181K |
| 代理商： | LM4888SQ/NOPB |
LM4888
Dual 2.1W Audio Amplifier Plus Stereo Headphone & 3D
Enhancement
General Description
The LM4888 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.
A user selectable “National 3D Enhancement” mode pro-
vides enhanced stereo imaging.
The LM4888SQ also has two separate HP (headphone)
enable inputs, each having different logic level thresholds.
Either HP enable input activates the single ended head-
phone mode and disables the BTL output mode. The HP
Sense input is for use with a normal stereo headphone jack.
The remaining input, HP Logic, accepts standard logic level
thresholds.
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 LM4888SQ combines dual
bridge speaker amplifiers and stereo headphone amplifiers
on one chip.
The LM4888SQ features a low-power consumption shut-
down mode and thermal shutdown protection. It also utilizes
circuitry to reduce “clicks and pops” during device turn-on.
Note 1: An LM4888SQ 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 LM4888SQ.
Note 2: An LM4888SQ 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, VDD =5V
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
2.7V to 5.5V
j PSRR at 217Hz
85dB (typ)
Features
n
National 3D Enhancement
n
Selectable headphone enable modes
n
Stereo headphone amplifier mode
n
Improved “click and pop” suppression circuitry
n
Thermal shutdown protection circuitry
n
PCB area-saving SQ package
n
Micro power shutdown mode
Applications
n
Cell phones
n
Multimedia monitors
n
Portable and desktop computers
n
Portable audio systems
Connection Diagrams
LM4888SQ
LM4888SQ Top Mark
20111628
Top View
Order Number LM4888SQ
See NS Package Number SQA24A
201116C6
Top View
U = Fab Code
Z = Assembly Plant Code
XY = Date Code
TT = Die Traceability
Boomer is a registered trademark of National Semiconductor Corporation.
March 2006
LM4888
Dual
2.1W
Audio
Amplifier
Plus
Stereo
Headphone
&
3
D
Enhancement
2006 National Semiconductor Corporation
DS201116
www.national.com
相关PDF资料 |
PDF描述 |
|---|---|
| LM4889ITL/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| LM4889ITLX/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
| LM4889LD/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| LM4890LD/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| LM4890IBPX/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4888SQX/NOPB | 功能描述:IC AMP AUDIO PWR 3W STER 24LLP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| LM4889 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1 Watt Audio Power Amplifier |
| LM4889ITL | 功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| LM4889ITLX | 制造商:Texas Instruments 功能描述:Audio Amp Speaker 1-CH Mono 1W Class-AB 8-Pin uSMD T/R |
| LM4889ITLX/NOPB | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。