參數(shù)資料
型號： MAX9742ETX+
廠商： Maxim Integrated Products
文件頁數(shù)： 1/36頁
文件大小： 0K
描述： IC AMP AUDIO PWR 20.5W D 36TQFN
標(biāo)準(zhǔn)包裝： 50
類型： D 類
輸出類型： 2 通道（立體聲）
在某負(fù)載時最大輸出功率 x 通道數(shù)量： 20.5W x 2 @ 8 歐姆
電源電壓： 20 V ~ 40 V，±10 V ~ 20 V
特點： 消除爆音，差分輸入，靜音，短路和熱保護(hù)，關(guān)機
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 36-TQFN 裸露焊盤（6x6）
封裝/外殼： 36-WFQFN 裸露焊盤
包裝： 管件
General Description
The MAX9742 stereo Class D audio power amplifier
delivers up to 2 x 16W into 4 loads. The MAX9742
features high-power efficiency (92% with 8 loads),
eliminating the need for a bulky heatsink and conserv-
ing power. The MAX9742 operates from a 20V to 40V
single supply or a ±10V to ±20V dual supply. Features
include fully differential inputs, comprehensive click-
and-pop suppression, low-power shutdown mode, and
an externally adjustable gain. Short-circuit and thermal-
overload protection prevent the device from being
damaged during a fault condition.
The MAX9742 is available in a thermally efficient 36-pin
TQFN (6mm x 6mm x 0.8mm) package and is specified
over the -40°C to +85°C extended temperature range.
Applications
CRT TVs
Flat-Panel Display TVs
Audio Docking Stations
Multimedia Monitors
Features
o 2 x 16W Output Power (RL = 4, THD+N = 10%)
o High Efficiency: Up to 92% with RL = 8
o Mute and Shutdown Modes
o Differential Inputs Suppress Common-Mode Noise
o Adjustable Gain
o Integrated Click-and-Pop Suppression
o Low 0.06% THD+N at 3.5W, RL = 8
o Output Short-Circuit and Thermal Protection
o Available in Space-Saving, 6mm x 6mm, 36-Pin
TQFN Package
MAX9742
Single-/Dual-Supply, Stereo 16W,
Class D Amplifier with Differential Inputs
________________________________________________________________
Maxim Integrated Products
1
LF
CF
CLASS D
MODULATOR AND
HALF-BRIDGE
RF2
CFBR
CZBL
RZBL
CIN
RIN1
MAX9742
CIN
RIN2
INL-
INL+
CIN
RIN2
CIN
RIN1
INR+
MID
INR-
CFBL
FBL
FBR
SFT
COUT
CFBL
CFBR
CLASS D
MODULATOR AND
HALF-BRIDGE
CONTROL LOGIC/
POWER-UP
SEQUENCING
LF
CF
CZBL
RZBL
COUT
RF1
SHDN
OUTR
LEFT POSITIVE
AUDIO INPUT
LEFT NEGATIVE
AUDIO INPUT
RIGHT POSITIVE
AUDIO INPUT
RIGHT NEGATIVE
AUDIO INPUT
SINGLE-SUPPLY CONFIGURATION
OUTL
20V TO 40V
VSS
VDD
2
CSFT
ON
OFF
Simplified Block Diagrams
19-0731; Rev 0; 1/07
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
EVALUATION
KIT
AVAILABLE
Pin Configuration located at end of data sheet.
Ordering Information
+
Denotes lead-free package.
*
EP = Exposed paddle.
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
MAX9742ETX+
-40°C to +85°C
36 TQFN-EP*
T3666-3
Simplified Block Diagrams continued at end of data sheet.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9742ETX+ 功能描述:音頻放大器 Stereo 16W Class D Amplifier 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
MAX9742ETX+T 功能描述:音頻放大器 Stereo 16W Class D Amplifier 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
MAX9742EVKIT+ 功能描述:音頻放大器 Evaluation Kit for the MAX9742 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
MAX9744ETH+ 功能描述:音頻放大器 Stereo 20W Class D Amplifier 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
MAX9744ETH+T 功能描述:音頻放大器 Stereo 20W Class D Amplifier 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
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