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参数资料
| 型号： | MAX98302EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/13页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION FOR MAX98302 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 放大器类型： | 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： | 2.4W x 2 @ 4 欧姆 |
| 电源电压： | 2.6 V ~ 5.5 V |
| 板类型： | 完全填充 |
| 已用 IC / 零件： | MAX98302 |
| 已供物品： | 板 |
| 相关产品： | MAX98302ETD+-ND - IC AMP STER CLASS D 2.4W 14TDFN |
_______________________________________________________________________________________ 9
MAX98302
Stereo 2.4W Class D Amplifier
Input Filtering
The input-coupling capacitor (CIN), in conjunction with
the amplifier’s internal input resistance (RIN), forms a
highpass filter that removes the DC bias from the incom-
ing signal. These capacitors allow the amplifier to bias
the signal to an optimum DC level.
Assuming zero-source impedance with a gain setting of
AV = 12dB, 15dB, or 18dB, CIN is:
IN
3dB
8
C
[ F]
f
=
with a gain setting of AV = 9dB, CIN is:
IN
3dB
5.7
C
[ F]
f
=
with a gain setting of AV = 6dB, CIN is:
IN
3dB
4
C
[ F]
f
=
where f-3dB is the -3dB corner frequency. Use capaci-
tors with adequately low-voltage coefficients for best
low-frequency THD performance.
Layout and Grounding
Proper layout and grounding are essential for optimum
performance. Good grounding improves audio perfor-
mance and prevents switching noise from coupling into
the audio signal.
Use wide, low-resistance output traces. As load imped-
ance decreases, the current drawn from the device
outputs increase. At higher current, the resistance of
the output traces decrease the power delivered to the
load. For example, if 2W is delivered from the speaker
output to a 4I load through a 100mI trace, 49mW is
consumed in the trace. If power is delivered through a
10mI trace, only 5mW is consumed in the trace. Wide
output, supply, and ground traces also improve the
power dissipation of the device.
The MAX98302 is inherently designed for excellent RF
immunity. For best performance, add ground fills around
all signal traces on top or bottom PCB planes.
The MAX98302 TDFN-EP package features an exposed
thermal pad on its underside. This pad lowers the pack-
age’s thermal resistance by providing a heat conduction
path from the die to the PCB. Connect the exposed
thermal pad to the ground plane by using a large pad
and multiple vias.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX98302EVKIT+ | 功能描述:音频 IC 开发工具 MAX98302 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| MAX98303EVKIT+ | 功能描述:音频 IC 开发工具 MAX98303 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| MAX98303EWE+ | 制造商:Maxim Integrated Products 功能描述:STEREO CLASS D AMPLIFIER - Rail/Tube |
| MAX98303EWE+T | 功能描述:音频放大器 2W Stereo 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 |
| MAX98304DEWL+T | 功能描述:音频放大器 Mono 3.2W 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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