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| 型号： | MAX9741ETN+D |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 12W STER 56TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 37 |
| 类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 12W x 2 @ 8 欧姆 |
| 电源电压： | 10 V ~ 25 V |
| 特点： | 消除爆音，差分输入，静音，短路和热保护，关机 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 56-TQFN-EP（8x8） |
| 封装/外壳： | 56-WFQFN 裸露焊盘 |
| 包装： | 管件 |
MAX9741
12W+12W, Low-EMI, Spread-Spectrum,
Stereo, Class D Amplifier
_______________________________________________________________________________________
7
Detailed Description
The MAX9741 low-EMI, Class D audio power amplifier
features several improvements to switch-mode amplifi-
er technology. This device offers Class AB perfor-
mance with Class D efficiency, while occupying
minimal board space. A unique modulation scheme
and spread-spectrum switching mode create a com-
pact, flexible, low-noise, efficient audio power amplifier.
The differential input architecture reduces common-
mode noise pickup, and can be used without input-
coupling capacitors. The device can also be
configured as a single-ended input amplifier.
PIN
NAME
FUNCTION
1, 4, 7, 11–15, 19, 21,
23, 25, 28, 33–36, 39,
42, 43, 44, 49, 50, 55, 56
N.C.
No Connection. Not internally connected.
2, 3, 40, 41
PGND
Power Ground
5, 6, 37, 38
VDD
Power-Supply Input
8
C1N
Charge-Pump Flying Capacitor Negative Terminal
9
C1P
Charge-Pump Flying Capacitor Positive Terminal
10
CHOLD
Charge-Pump Hold Capacitor. Connect a 1F capacitor from CHOLD to VDD.
16
INL-
Left-Channel Negative Input
17
INL+
Left-Channel Positive Input
18
SHDN
Active-Low Shutdown. Connect SHDN to GND to disable the device. Connect to VDD for
normal operation.
20
SS
Soft-Start. Connect a 0.47F capacitor from SS to GND to enable soft-start feature.
22
AGND
Analog Ground
24
REG
Internal Regulator Output. Bypass with a 0.01F capacitor to PGND.
26
INR-
Right-Channel Negative Input
27
INR+
Right-Channel Positive Input
29
G1
Gain-Select Input 1
30
G2
Gain-Select Input 2
31
FS1
Frequency-Select Input 1
32
FS2
Frequency-Select Input 2
45, 46
OUTR-
Right-Channel Negative Audio Output
47, 48
OUTR+
Right-Channel Positive Audio Output
51, 52
OUTL-
Left-Channel Negative Audio Output
53, 54
OUTL+
Left-Channel Positive Audio Output
—EP
Exposed Paddle. Connect to GND.
Pin Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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:音频放大器 Stereo 16W Class D Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9742ETX+T | 功能描述:音频放大器 Stereo 16W Class D Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9742EVKIT+ | 功能描述:音频放大器 Evaluation Kit for the MAX9742 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9744ETH+ | 功能描述:音频放大器 Stereo 20W Class D Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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