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參數(shù)資料
| 型號(hào)： | LM4925SD |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Single Audio Amplifier |
| 中文描述： | 0.04 W, 2 CHANNEL, AUDIO AMPLIFIER, DSO10 |
| 封裝： | LLP-10 |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大?。?/td> | 1046K |
| 代理商： | LM4925SD |
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LM4925
2 Cell, Single Ended Output, 40mW Stereo Headphone
Audio Amplifier
General Description
The unity gain stable LM4925 is both a mono differential
output (for BTL operation) audio amplifier and a Single
Ended (SE) stereo headphone amplifier. Operating on a
single 3V supply, the mono-BTL mode delivers 410mW into
an 8
load at 1% THD+N. In Single Ended stereo head-
phone mode, the amplifier delivers 40mW per channel into a
16
load at 1% THD+N.
With the LM4925 packaged in the MM and LLP packages,
the customer benefits include low profile and small size. This
package minimizes PCB area and maximizes output power.
The LM4925 features circuitry that reduces output transients
(“clicks” and “pops”) during device turn-on and turn-off, an
externally controlled, low-power consumption, active-low
shutdown mode, and thermal shutdown. Boomer audio
power amplifiers are designed specifically to use few exter-
nal components and provide high quality output power in a
surface mount package.
Key Specifications
n
Mono-BTL Output Power
n
(R
L
= 8
, V
DD
= 3.0V, THD+N = 1%)
n
Single Ended Output Power Per Channel
n
(R
L
= 16
, V
DD
= 3.0V, THD+N = 1%)
n
Micropower shutdown current
n
Supply voltage operating range
n
PSRR 100Hz, V
DD
= 3V, BTL
410mW (typ)
40mW (typ)
0.1μA (typ)
1.5V
<
V
DD
<
3.6V
70dB (typ)
Features
n
BTL mode for mono speaker
n
2-cell 1.5V to 3.6V battery operation
n
Single ended headphone operation with output coupling
capacitors
n
Unity-gain stable
n
“Click and pop” suppression circuitry for both Shutdown
and Mute
n
Active low micro-power shutdown
n
Active-low mute mode
n
Thermal shutdown protection circuitry
Applications
n
Portable two-cell audio products
n
Portable two-cell electronic devices
Typical Application
Boomer
is a registered trademark of National Semiconductor Corporation.
20121157
FIGURE 1. Block Diagram
February 2005
L
2005 National Semiconductor Corporation
DS201211
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4925SD/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4925SDBD | 功能描述:BOARD EVALUATION LM4925SD RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- |
| LM4925SDX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4925SDX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4926 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ground-Referenced, Ultra Low Noise, Fixed Gain, 80mW Stereo Headphone Amplifier |
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