- 您現在的位置：買賣IC網 > PDF目錄30756 > LM4906LD/NOPB (NATIONAL SEMICONDUCTOR CORP) 1 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10 PDF資料下載
參數資料
| 型號： | LM4906LD/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| 封裝： | LLP-10 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 888K |
| 代理商： | LM4906LD/NOPB |
LM4906
1W, Bypass-Capacitor-less Audio Amplifier with Internal
Selectable Gain
General Description
The LM4906 is an audio power amplifier primarily designed
for demanding applications in mobile phones and other por-
table communication device applications. It is capable of
delivering 1W of continuous average power to an 8
BTL
load with less than 1% distortion (THD+N) from a +5V power
supply.
The LM4906 is the first National Semiconductor Boomer
Power Amplifier that does not require an external PSRR
bypass capacitor. The LM4906 also has an internal select-
able gain of either 6dB or 12dB. In addition, no output
coupling capacitors or bootstrap capacitors are required
which makes the LM4906 ideally suited for cell phone and
other low voltage portable applications.
The LM4906 contains advanced pop and click circuitry that
eliminates noise, which would otherwise occur during
turn-on and turn-off transitions.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. The LM4906 features a low -power
consumption shutdown mode (the part is enabled by pulling
the SD pin high). Additionally, the LM4906 features an inter-
nal thermal shutdown protection mechanism.
Key Specifications
j Improved PSRR at 217Hz for +3V
71dB
j Power Output at +5V, THD+N = 1%, 8
1.0W (typ)
j Power Output at +3V, THD+N = 1%, 8
390mW (typ)
j Total shutdown power supply current
0.1A (typ)
Features
n
Selectable gain of 6dB (2V/V) or 12dB (4V/V)
n
No output or PSRR bypass capacitors required
n
Improved “Click and Pop” suppression circuitry
n
Very fast turn on time: 5ms (typ)
n
Minimum external components
n
2.6 - 5.5V operation
n
BTL output can drive capacitive loads
n
Ultra low current shutdown mode (SD Low)
Applications
n
Portable computers
n
Desktop computers
n
Multimedia monitors
Typical Application
Boomer is a registered trademark of National Semiconductor Corporation.
200571B9
FIGURE 1. Typical Audio Amplifier Application Circuit
January 2005
LM4906
1W
,
Bypass-Capacitor-less
Audio
Amplifier
with
Internal
Selectable
Gain
2005 National Semiconductor Corporation
DS200571
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LM4906GR/NOPB | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA12 |
| LM4907LD | 1.07 W, 1 CHANNEL, AUDIO AMPLIFIER, DSO8 |
| LM4908MM/NOPB | 0.157 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4908MA/NOPB | 0.157 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| LM4908LQ/NOPB | 0.157 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC8 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4906LDX | 功能描述:IC AMP AUDIO PWR 1W MONO 10LLP 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) |
| LM4906LDX/NOPB | 制造商:Texas Instruments 功能描述:Audio Amp Speaker 1-CH Mono 1W Class-AB 10-Pin LLP EP T/R |
| LM4906MM | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4906MM/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4906MMBD | 功能描述:音頻 IC 開發工具 LM4906MM EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
發布緊急采購，3分鐘左右您將得到回復。