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參數資料
| 型號： | LM4863LQX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3.2 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC24 |
| 封裝： | LLP-24 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 1219K |
| 代理商： | LM4863LQX/NOPB |
LM4863
Dual 2.2W Audio Amplifier Plus Stereo Headphone
Function
General Description
The LM4863 is a dual bridge-connected audio power ampli-
fier which, when connected to a 5V supply, will deliver 2.2W
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.
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 LM4863 combines dual bridge
speaker amplifiers and stereo headphone amplifiers on one
chip.
The LM4863 features an externally 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 LM4863MTE or LM4863LQ that has been properly mounted to
a circuit board will deliver 2.2W into 4
. The other package options for the
LM4863 will deliver 1.1W into 8
. See the Application Information sections
for further information concerning the LM4863MTE and LM4863LQ.
Note 2: An LM4863MTE or LM4863LQ that has been properly mounted to a
circuit board and forced-air cooled will deliver 2.5W into 3
.
Key Specifications
n
P
O at 1% THD+N
n
LM4863LQ, 3
,4 loads
2.5W(typ), 2.2W(typ)
n
LM4863MTE, 3
,4 loads
2.5W(typ), 2.2W(typ)
n
LM4863MTE, 8
load
1.1W(typ)
n
LM4863, 8
1.1W(typ)
n
Single-ended mode THD+N at 75mW into
32
0.5%(max)
n
Shutdown current
0.7A(typ)
n
Supply voltage range
2.0V to 5.5V
Features
n
Stereo headphone amplifier mode
n
“Click and pop” suppression circuitry
n
Unity-gain stable
n
Thermal shutdown protection circuitry
n
SOIC, DIP
*, TSSOP and exposed-DAP TSSOP, and LLP
packages
* Not recommended for new designs. Contact NSC Audio
Marketing.
Applications
n
Multimedia monitors
n
Portable and desktop computers
n
Portable televisions
Typical Application
01288101
Note: Pin out shown for DIP and SO packages. Refer to the Connection Diagrams for the pinout of the TSSOP, Exposed-DAP TSSOP, and Exposed-DAP
LLP packages.
Boomer is a registered trademark of National Semiconductor Corporation.
April 2005
LM4863
Dual
2.2W
Audio
Amplifier
Plus
Stereo
Headphone
Function
2005 National Semiconductor Corporation
DS012881
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LM4864MDC | 0.55 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC13 |
| LM4864MWC | 0.55 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC13 |
| LM4864N/NOPB | 0.675 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP8 |
| LM4864LD/NOPB | 0.725 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| LM4865IBP/NOPB | 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PBGA8 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4863M | 制造商:Texas Instruments 功能描述:Audio Amp Headphone/Speaker 2-CH Stereo 1.5W Class-AB 16-Pin SOIC W Rail 制造商:Panasonic Industrial Company 功能描述:IC |
| LM4863M/NOPB | 功能描述:IC AMP AUDIO PWR 3.2W AB 16SOIC 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) |
| LM4863MT | 制造商:Panasonic Industrial Company 功能描述:IC |
| LM4863MT | 制造商:Texas Instruments 功能描述:AMP AUDIO DUAL 2.2W 4863 TSSOP20 |
| LM4863MT/NOPB | 功能描述:IC AMP AUDIO PWR 3.2W AB 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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