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參數(shù)資料
| 型號： | LM4820-6 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Fixed Gain 1 Watt Audio Power Amplifier |
| 中文描述： | 固定增益1瓦音頻功率放大器 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 539K |
| 代理商： | LM4820-6 |
LM4820-6
Fixed Gain 1 Watt Audio Power Amplifier
General Description
The LM4820-6 is an audio power amplifier primarily de-
signed for demanding applications in mobile phones and
other portable communication device applications. It is ca-
pable of delivering 1 watt of continuous average power to an
8
BTL load with less than 1% distortion (THD+N) at 6dB of
BTL gain from a 5V
DC
power supply.
Boomer audio power amplifiers were designed specifically to
provide high quality output power with a minimal amount of
external components. The LM4820-6 does not require input
and gain resistors, output coupling capacitors or bootstrap
capacitors, and therefore is ideally suited for mobile phone
and other low voltage applications where minimal parts
count and low power consumption is a primary requirement.
The LM4820-6 features a low-power consumption shutdown
mode, which is achieved by driving the shutdown pin with
logic low. Additionally, the LM4820-6 features an internal
thermal shutdown protection mechanism.
The LM4820-6 contains advanced pop & click circuitry which
eliminates noises which would otherwise occur during
turn-on and turn-off transitions.
Key Specifications
j
Improved PSRR at 217Hz
j
Power Output at 5.0V & 1% THD
j
Power Output at 3.3V & 1% THD
j
Shutdown Current
62dB
1.0W(typ.)
400mW(typ.)
0.1μA(typ.)
Features
n
Fixed 6dB BTL voltage gain
n
Available in space-saving packages micro SMD, MSOP
and SOIC
n
Ultra low current shutdown mode
n
Can drive capacitive loads up to 500 pF
n
Improved pop & click circuitry eliminates noises during
turn-on and turn-off transitions
n
2.0 - 5.5V operation
n
No output coupling capacitors, snubber networks or
bootstrap capacitors required
n
External gain configuration still possible
Applications
n
Mobile Phones
n
PDAs
n
Portable electronic devices
Typical Application
Boomer
is a registered trademark of National Semiconductor Corporation.
DS200106-1
FIGURE 1. Typical Audio Amplifier Application Circuit
April 2002
L
2002 National Semiconductor Corporation
DS200106
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4820M-6 | Fixed Gain 1 Watt Audio Power Amplifier |
| LM4820IBPX-6 | Fixed Gain 1 Watt Audio Power Amplifier |
| LM4820MM-6 | Fixed Gain 1 Watt Audio Power Amplifier |
| LM4862N | 675 mW Audio Power Amplifier with Shutdown Mode |
| LM4862 | 675 mW Audio Power Amplifier with Shutdown Mode |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4820IBP-6 | 功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)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(shù)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(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4820IBPX-6 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Fixed Gain 1 Watt Audio Power Amplifier |
| LM4820ITP-6/NOPB | 功能描述:IC AMP AUDIO PWR 1W MONO 8USMD RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)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(shù)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(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4820M-6 | 功能描述:IC AMP AUDIO PWR 1W MONO 8SOIC RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)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(shù)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(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4820MM-6 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Fixed Gain 1 Watt Audio Power Amplifier |
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