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参数资料
| 型号： | MAX9708ETN+D |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/22页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 42W 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： | 1-通道（单声道）或 2-通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 42W x 1 @ 4 欧姆; 21W x 2 @ 8 欧姆 |
| 电源电压： | 10 V ~ 18 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 |
| 产品目录页面： | 1392 (CN2011-ZH PDF) |
MAX9708
20W/40W, Filterless, Spread-Spectrum,
Mono/Stereo, Class D Amplifier
17
Maxim Integrated
Mismatch in the components can cause discrepancies
between the nominal transfer function and actual perfor-
mance. Also, the mismatch of the input resistors (R15,
R17, R19, and R21 in Figure 6) of the summing amplifier
and lowpass filter will cause some high-frequency sound
to be sent to the subwoofer.
The circuit in Figure 6 drives a pair of MAX9708 devices
similar to the circuit in Figure 5. The inputs to the
MAX9708 still require AC-coupling to prevent compro-
mising the click-and-pop performance of the MAX9708.
The left and right drivers should be at an 8
Ω to 12Ω
impedance, whereas the subwoofer can be 4
Ω to 12Ω
depending on the desired output power, the available
power-supply voltage, and the sensitivity of the individ-
ual speakers in the system. The four gain settings of
the MAX9708 allow gain adjustments to match the sen-
sitivity of the speakers.
Figure 5. Multiple Amplifiers Implement a 2.1 Audio System
MAX9708
HIGHPASS
FILTER
8
Ω
FULL-
RANGE
SPEAKER
8
Ω
FULL-
RANGE
SPEAKER
4
Ω OR 8Ω
WOOFER
RIGHT
AUDIO
LEFT
AUDIO
HIGHPASS
FILTER
LOWPASS
FILTER
Σ
VDIGITAL
OUTR+
OUTR-
OUTL+
OUTL-
OUTR+
OUTR-
OUTL+
OUTL-
INR+
INR-
MONO
INL+
INL-
INR+
SYNCIN
SYNCOUT
INR-
MONO
INL+
INL-
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9708ETN-T | 制造商:Maxim Integrated Products 功能描述:20W/40W FILTERLESS, SPREAD-SPECTRUM, MONO/STE - Tape and Reel |
| MAX9708EVKIT | 功能描述:音频放大器 Evaluation Kit for the MAX9708 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 |
| MAX9709ECB+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 50W/29W CLS-D 64TQFP EP - Rail/Tube |
| MAX9709ECB+T | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 50W/29W CLS-D 64TQFP EP - Tape and Reel |
| MAX9709ETN | 功能描述:音频放大器 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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