参数资料
型号: MAX9700AEUB+T
厂商: Maxim Integrated Products
文件页数: 20/20页
文件大小: 0K
描述: IC AMP AUDIO 1.6W MONO D 10MSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: D 类
输出类型: 1-通道(单声道)
在某负载时最大输出功率 x 通道数量: 1.6W x 1 @ 6 欧姆
电源电压: 2.5 V ~ 5.5 V
特点: 消除爆音,差分输入,短路和热保护,关闭
安装类型: 表面贴装
供应商设备封装: 10-µMAX
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
MAX9700
1.2W, Low-EMI, Filterless,
Class D Audio Amplifier
_______________________________________________________________________________________
9
scheme remains the same, but the period of the saw-
tooth waveform changes from cycle to cycle (Figure 2).
Instead of a large amount of spectral energy present at
multiples of the switching frequency, the energy is now
spread over a bandwidth that increases with frequency.
Above a few megahertz, the wideband spectrum looks
like white noise for EMI purposes (Figure 3).
External Clock Mode
The SYNC input allows the MAX9700 to be synchro-
nized to a system clock (allowing a fully synchronous
system), or allocating the spectral components of the
switching harmonics to insensitive frequency bands.
Applying an external TTL clock of 800kHz to 2MHz to
SYNC synchronizes the switching frequency of the
MAX9700. The period of the SYNC clock can be ran-
domized, enabling the MAX9700 to be synchronized to
another MAX9700 operating in SSM mode.
Filterless Modulation/Common-Mode Idle
The MAX9700 uses Maxim’s modulation scheme
that eliminates the LC filter required by traditional
class D amplifiers, improving efficiency, reducing
component count, and conserving board space
and system cost. Conventional class D amplifiers
Figure 1. MAX9700 Outputs with an Input Signal Applied
OUT+
OUT-
VIN-
VIN+
VOUT+ - VOUT-
tON(MIN)
tSW
SYNC INPUT
MODE
GND
FFM with fS = 1100kHz
UNCONNECTED
FFM with fS = 1450kHz
VDD
SSM with fS = 1220kHz
±120kHz
Clocked
FFM with fS = external clock frequency
Table 1. Operating Modes
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MAX9700BEBC 制造商:Maxim Integrated Products 功能描述:1.2W LOW EMI FILTERLESS CLASS D - Rail/Tube
MAX9700BEBC+ 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO 1.6W CLS-D 12UCSP - Rail/Tube
MAX9700BEBC+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
MAX9700BEBC-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
MAX9700BETB 制造商:Maxim Integrated Products 功能描述:1.2W, LOW EMI, FILTERLESS, CLASS D AUDIO AMPL - Rail/Tube