參數(shù)資料
型號: MAX9702ETI+T
廠商: Maxim Integrated Products
文件頁數(shù): 9/31頁
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 1.8W D 28TQFN
標(biāo)準(zhǔn)包裝: 2,500
系列: DirectDrive®
類型: D 類
輸出類型: 2-通道(立體聲)帶立體聲耳機
在某負載時最大輸出功率 x 通道數(shù)量: 1.8W x 2 @ 4 歐姆; 45mW x 2 @ 32 歐姆
電源電壓: 2.5 V ~ 5.5 V
特點: 消除爆音,差分輸入,I²C,靜音,短路和熱保護,關(guān)機
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 28-TQFN-EP(5x5)
封裝/外殼: 28-WFQFN 裸露焊盤
包裝: 帶卷 (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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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 開發(fā)工具 MAX9702/2B Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V
MAX9702EVKIT 功能描述:放大器 IC 開發(fā)工具 MAX9702/2B Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V
MAX9703DEVBRD 功能描述:放大器 IC 開發(fā)工具 MAX9703 Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V