參數(shù)資料
型號(hào)： LM48100QMH/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 音頻控制
英文描述： VOLUME CONTROL CIRCUIT, PDSO14
封裝： GREEN, TSSOP-14
文件頁(yè)數(shù)： 1/24頁(yè)
文件大?。?/td> 566K
代理商： LM48100QMH/NOPB
November 12, 2008
LM48100Q
Mono, 1.3W Audio Power Amplifier with Output Fault
Detection and Volume Control
General Description
The LM48100Q is a single supply, mono, bridge-tied load
amplifier with I2C volume control, ideal for automotive appli-
cations. A comprehensive output fault detection system sens-
es the load conditions, protecting the device during short
circuit events, as well as detecting open circuit conditions.
Operating from a single 5V supply, the LM48100Q delivers
1.3W of continuous output power to an 8
load with < 1%
THD+N. Flexible power supply requirements allow operation
from 3.0V to 5.5V. High power supply rejection ratio (PSRR),
74dB at 1kHz, allows the device to operate in noisy environ-
ments without additional power supply conditioning.
The LM48100Q features dual audio inputs that can be mixed/
multiplexed to the device output. Each input path has its own
independent, 32-step volume control. The mixer, volume con-
trol and device mode select are controlled through an I2C
compatible interface. An open drain FAULT output indicates
when a fault has occurred. Comprehensive output short cir-
cuit and thermal overload protection prevent the device from
being damaged during a fault condition.
A low power shutdown mode reduces supply current con-
sumption to 0.01A. Superior click and pop suppression elim-
inates audible transients on power-up/down and during
shutdown. The LM48100Q is available in an 14-pin TSSOP
package
Key Specifications
■Output Power at V
DD = 5V,
R
L = 8, THD+N ≤ 1%
1.3W (typ)
■Quiescent Power Supply Current
at 5V
6mA (typ)
■PSRR at 1kHz
74dB (typ)
■Shutdown current
0.01μA (typ)
Features
■ Output Fault Detection
■ I2C Volume and Mode Control
■ Input Mixer/Multiplexer
■ High PSRR
■ Individual 32-Step Volume Control
■ Short Circuit and Thermal Protection
■ Advanced Click-and-Pop Suppression
■ Low Power Shutdown Mode
■ Available in 14-pin TSSOP Package
Applications
■ Automotive Instrument Clusters
■ Hands-free Car Kits
■ Medical
Boomer is a registered trademark of National Semiconductor Corporation.
2008 National Semiconductor Corporation
300758
www.national.com
LM48100Q
Mono,
1.3W
Audio
Power
Amplifier
with
Output
Fault
Detection
and
Volume
Control
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM48100QMHX 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(lèi)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
LM48100QMHX/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(lèi)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
LM4810LD 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 105mW Headphone Amplifier with Active-High Shutdown Mode
LM4810LD/NOPB 功能描述:IC AMP AUDIO PWR .105W STER 8LLP RoHS:是 類(lèi)別:集成電路 (IC) >> 線性 - 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:2,500 系列:DirectDrive® 類(lèi)型:H 類(lèi) 輸出類(lèi)型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)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(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，音量控制 安裝類(lèi)型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR)
LM4810MA 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual 105mW Headphone Amplifier with Active-High Shutdown Mode
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