參數(shù)資料
型號(hào)： MAX9744ETH+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO PWR 22.5W D 44TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 1
類型： D 類
輸出類型： 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： 22.5W x 2 @ 4 歐姆
電源電壓： 4.5 V ~ 14 V
特點(diǎn)： 消除爆音，靜音，短路和熱保護(hù)，關(guān)機(jī)，音量控制
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 44-TQFN-EP（7x7）
封裝/外殼： 44-WFQFN 裸露焊盤
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： MAX9744ETH+TDKR
General Description
The MAX9744 20W stereo Class D audio power amplifi-
er provides Class AB amplifier performance with Class
D efficiency, conserving board space and eliminating
the need for a bulky heatsink. This device features sin-
gle-supply operation, adjustable gain, shutdown mode,
a SYNC output, speaker mute, and industry-leading
click-and-pop suppression.
The MAX9744 features a 64-step dual-mode (analog or
digital), programmable volume control and mute func-
tion. The MAX9744 operates from a 4.5V to 14V single
supply and can deliver up to 20W per channel into a
4
Ω speaker with a 14V supply.
The MAX9744 offers two modulation schemes: a fixed-
frequency modulation mode that allows one of several
preset switching frequencies to be selected, and a
spread-spectrum modulation mode that helps to
reduce EMI-radiated emissions.
The MAX9744 features high 75dB PSRR, low 0.04%
THD+N, and SNR in excess of 90dB. Robust short-cir-
cuit and thermal-overload protection prevent device
damage during a fault condition. The MAX9744 is avail-
able in a 44-pin thin QFN-EP (7mm x 7mm x 0.8mm)
package and is specified over the extended -40°C to
+85°C temperature range.
Applications
Flat-Panel Televisions
PC Speaker Systems
Multimedia Docking Stations
Features
Wide 4.5V to 14V Power-Supply Voltage Range
Filterless Spread-Spectrum Modulation Lowers
Radiated RF Emissions from Speaker Cables
20W Stereo Output (4Ω, VDD = 12V, THD+N = 10%)
Integrated Volume Control (I2C or Analog)
Low 0.04% THD+N
High 75dB PSRR
High 93% Efficiency
Integrated Click-and-Pop Suppression
Low-Power Shutdown Mode
Short-Circuit and Thermal-Overload Protection
Available in a 44-Pin Thin QFN-EP (7mm x 7mm x
0.8mm)
MAX9744
20W Stereo Class D Speaker Amplifier
with Volume Control
________________________________________________________________
Maxim Integrated Products
1
19-4078; Rev 1; 9/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Pin Configuration appears at end of data sheet.
EVALUATION
KIT
AVAILABLE
MAX9744
BIAS
SYNCOUT
SYNC
VOLUME
CONTROL
CLASS
D
MODULATOR
CLASS
D
MODULATOR
MUTE
SHUTDOWN
CONTROL
I2C
ANALOG
CONTROL
OSCILLATOR
3V TO 3.6V
4.5V TO 14V
MAX9744 EMI WITH FERRITE BEAD FILTERS
(VDD = 12V, 1m CABLE, 8
Ω LOAD)
FREQUENCY (MHz)
220
200
60
80
100
140
160
120
180
5
10
15
20
25
30
35
40
30
240
260
280
300
OUTPUT
MAGNITUDE
(dBV)
EN5022 B LIMIT
Simplified Block Diagram
+
Denotes a lead-free/RoHS-compliant package.
*
EP = Exposed pad.
PART
TEMP RANGE
PIN-PACKAGE
MAX9744ETH+
-40°C to +85°C
44 TQFN-EP*
Ordering Information
相關(guān)PDF資料
PDF描述
VE-21V-IW-F4 CONVERTER MOD DC/DC 5.8V 100W
VE-21V-IW-F3 CONVERTER MOD DC/DC 5.8V 100W
VE-21V-IW-F2 CONVERTER MOD DC/DC 5.8V 100W
MCP3304T-BI/SL IC ADC 13BIT 2.7V 4CH SPI 16SOIC
VE-B5T-IV-F2 CONVERTER MOD DC/DC 6.5V 150W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9744EVCMAXQU+ 功能描述:音頻放大器 Evaluation Kit/Evaluation System for the MAX9744 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
MAX9744EVKIT+ 功能描述:音頻放大器 Evaluation Kit/Evaluation System for the MAX9744 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
MAX974CPE 功能描述:校驗(yàn)器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MAX974CPE+ 功能描述:校驗(yàn)器 IC Dual Comparator / Reference RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MAX974CSE 功能描述:校驗(yàn)器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*