参数资料
型号: MAX9702ETI+T
厂商: Maxim Integrated Products
文件页数: 9/31页
文件大小: 0K
描述: IC AMP AUDIO PWR 1.8W D 28TQFN
标准包装: 2,500
系列: DirectDrive®
类型: D 类
输出类型: 2-通道(立体声)带立体声耳机
在某负载时最大输出功率 x 通道数量: 1.8W x 2 @ 4 欧姆; 45mW x 2 @ 32 欧姆
电源电压: 2.5 V ~ 5.5 V
特点: 消除爆音,差分输入,I²C,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: 28-TQFN-EP(5x5)
封装/外壳: 28-WFQFN 裸露焊盘
包装: 带卷 (TR)
MAX9702
1.8W, Filterless, Stereo, Class D Audio Power
Amplifier and DirectDrive Stereo Headphone Amplifier
______________________________________________________________________________________
17
External Clock Mode
The SYNC input allows the MAX9702 to be synchro-
nized to an external clock, or another Maxim Class D
amplifier, creating a fully synchronous system, minimiz-
ing clock intermodulation, and allocating spectral com-
ponents of the switching harmonics to insensitive
frequency bands. Applying a TTL clock signal between
1MHz and 2MHz to SYNC synchronizes the MAX9702.
The period of the SYNC clock can be randomized,
allowing the MAX9702 to be synchronized to another
Maxim Class D amplifier operating in SSM mode.
SYNC_OUT allows several Maxim Class D amplifiers to
be cascaded. The synchronized output minimizes inter-
ference due to clock intermodulation caused by the
switching spread between single devices using
SYNC_OUT. The modulation scheme remains the same
when using SYNC_OUT, and audio reproduction is not
affected (see Figure 4).
Figure 3. MAX9702 EMI with 76mm of Speaker Cable
MAX9702
fig03
FREQUENCY (MHz)
AMPLITUDE
(dB
V/m)
160
180
200
220
240
260
280
300
140
120
100
80
60
20
25
30
35
40
45
50
15
30
MAX9702
FCC EMI LIMIT
Figure 4. Cascading Two Amplifiers
MAX9702
OUTL+
OUTL-
MAX9700
OUT+
OUT-
OUTR+
OUTR-
SYNC
SYNC_OUT
SYNC
INPUT
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MAX9702EUI+ 制造商:Maxim Integrated Products 功能描述:AUD AMP HDPH/SPKR 2CH STEREO 1.8W/0.045W CLS-AB/CLS-D 28TSSO - Rail/Tube
MAX9702EUI+T 制造商:Maxim Integrated Products 功能描述:AUD AMP HDPH/SPKR 2CH STEREO 1.8W/0.045W CLS-AB/CLS-D 28TSSO - Tape and Reel
MAX9702EVCMODU 功能描述:放大器 IC 开发工具 MAX9702/2B Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V
MAX9702EVKIT 功能描述:放大器 IC 开发工具 MAX9702/2B Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V
MAX9703DEVBRD 功能描述:放大器 IC 开发工具 MAX9703 Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V