参数资料
型号: MAX97003EWP+T
厂商: Maxim Integrated Products
文件页数: 16/48页
文件大小: 0K
描述: IC AUDIO SUBSYSTEM LN 20WLP
标准包装: 2,500
类型: D 类;H 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: 1W x 2 @ 8 欧姆
电源电压: 2.7 V ~ 5.5 V
特点: 消除爆音,差分输入,关闭
安装类型: *
供应商设备封装: *
封装/外壳: *
包装: *
Maxim Integrated Products 23
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
Figure 2. Stereo Single-Ended and Differential Input Configurations
Figure 3. EMI with 12in of Speaker Cable
Ultra-Low EMI Filterless Output Stage
Traditional Class D amplifiers require the use of external
LC filters or shielding to meet EN55022B electromag-
netic-interference (EMI) regulation standards. Maxim’s
patented active emissions limiting edge-rate control
circuitry and spread-spectrum modulation reduces EMI
emissions, while maintaining up to 93% efficiency.
Maxim’s spread-spectrum modulation mode flattens
wideband spectral components, while proprietary tech-
niques ensure that the cycle-to-cycle variation of the
switching period does not degrade audio reproduction or
efficiency. The IC’s spread-spectrum modulator random-
ly varies the switching frequency by Q10kHz around the
center frequency (300kHz). Above 10MHz, the wideband
spectrum looks like noise for EMI purposes. See Figure 3.
R
IN_2 (R)
STEREO SINGLE-ENDED
L
IN_1 (L)
IN_2 (+)
DIFFERENTIAL
IN_1 (-)
TO MIXER
FREQUENCY (MHz)
EMISSION
LEVEL
(dBV/m)
900
800
600 700
200 300 400 500
100
10
30
50
70
90
-10
0
1000
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相关代理商/技术参数
参数描述
MAX9700AEBC 制造商:Maxim Integrated Products 功能描述:1.2W LOW EMI FILTERLESS CLASS D - Rail/Tube
MAX9700AEBC+ 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO 1.6W CLS-D 12UCSP - Rail/Tube
MAX9700AEBC+T 功能描述:音频放大器 1.2W L-EMI Filterles Class D Audio Amp 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
MAX9700AEBC-T 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
MAX9700AETB 制造商:Maxim Integrated Products 功能描述:1.2W, LOW EMI, FILTERLESS, CLASS D AUDIO AMPL - Rail/Tube