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參數資料
| 型號： | MAX9741ETN+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO PWR 12W STER 56TQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 37 |
| 類型： | D 類 |
| 輸出類型： | 2 通道（立體聲） |
| 在某負載時最大輸出功率 x 通道數量： | 12W x 2 @ 8 歐姆 |
| 電源電壓： | 10 V ~ 25 V |
| 特點： | 消除爆音，差分輸入，靜音，短路和熱保護，關機 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 56-TQFN-EP（8x8） |
| 封裝/外殼： | 56-WFQFN 裸露焊盤 |
| 包裝： | 管件 |
General Description
The MAX9741 stereo Class D audio power amplifier
provides Class AB amplifier performance with Class D
efficiency, conserving board space and eliminating the
need for a bulky heatsink. Using a high-efficiency Class
D architecture, it delivers 12W continuous output power
into 8
loads. Proprietary modulation and switching
schemes render the traditional Class D EMI suppression
output filter unnecessary.
The MAX9741 offers two modulation schemes: a fixed-fre-
quency mode (FFM), and a spread-spectrum mode (SSM)
that reduces EMI-radiated emissions. The device utilizes a
fully differential architecture, a full bridged output, and
offers comprehensive click-and-pop suppression.
The MAX9741 features high 80dB PSRR, low 0.1%
THD+N, and SNR in excess of 100dB. Short-circuit and
thermal-overload protection prevent the device from
being damaged during a fault condition. The MAX9741
is available in a 56-pin TQFN (8mm x 8mm x 0.8mm)
package. The MAX9741 is specified over the extended
-40°C to +85°C temperature range.
Applications
Features
Low-EMI Class D Amplifier
Spread-Spectrum Mode Reduces EMI
Passes FCC EMI Limits with Ferrite Bead Filters
with 0.5m Cables
12W+12W Continuous Output Power into 8
Low 0.1% THD+N
High PSRR (80dB at 1kHz)
10V to 25V Single-Supply Operation
Differential Inputs Minimize Common-Mode Noise
Pin-Selectable Gain Reduces Component Count
Industry-Leading Click-and-Pop Suppression
Short-Circuit and Thermal-Overload Protection
Available in Thermally Efficient, Space-Saving
56-Pin TQFN (8mm x 8mm x 0.8mm) Package
MAX9741
12W+12W, Low-EMI, Spread-Spectrum,
Stereo, Class D Amplifier
________________________________________________________________ Maxim Integrated Products
1
19-3887; Rev 0; 2/06
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
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
MAX9741ETN+
-40°C to +85°C
56 TQFN-EP*
T5688-3
+Denotes lead-free package.
*EP = Exposed paddle.
LCD/PDP TVs
CRT TVs
PC Speakers
Pin Configuration appears at end of data sheet.
CLASS D
AMPLIFIERS
DRIVE 2 X 12W
INTO 8
LOADS
GAIN
CONTROL
INR+
DIFFERENTIAL AUDIO
INPUTS ELIMINATE
NOISE PICKUP
PROGRAMMABLE
SWITCHING
FREQUENCY
INR-
INL+
INL-
FS1, FS2
G2
G1
2
CLASS D
MODULATOR
OUTPUT
PROTECTION
MAX9741
Simplified Block Diagram
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| MAX9744ETH+ | IC AMP AUDIO PWR 22.5W D 44TQFN |
| MAX9753ETI+T | IC AMP AUDIO PWR 2.2W D 28TQFN |
| MAX9755ETI+T | IC AMP AUDIO PWR 2.6W AB 28TQFN |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9741EVKIT | 制造商:Maxim Integrated Products 功能描述:12W+12W FILTERLESS - Rail/Tube 制造商:Maxim Integrated Products 功能描述:12W+12W FILTERLESS SPREAD-SPECTRU - Rail/Tube |
| MAX9742ETX+ | 功能描述:音頻放大器 Stereo 16W Class D Amplifier RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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