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參數(shù)資料
| 型號： | MAX98302ETD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 13/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO 2.4W STER D 14TDFN |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 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(shù)量： | 2.4W x 2 @ 4 歐姆 |
| 電源電壓： | 2.6 V ~ 5.5 V |
| 特點： | 消除爆音，差分輸入，短路和熱保護，關(guān)閉 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 14-TDFN-EP（3x3） |
| 封裝/外殼： | 14-WFDFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
_______________________________________________________________________________________ 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX98302EVKIT+ | 功能描述:音頻 IC 開發(fā)工具 MAX98302 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| MAX98303EVKIT+ | 功能描述:音頻 IC 開發(fā)工具 MAX98303 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓: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:音頻放大器 2W Stereo 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX98304DEWL+T | 功能描述:音頻放大器 Mono 3.2W 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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