參數(shù)資料
型號(hào)： MAX9707ETX+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 7/25頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO 2.3W STER+1 36TQFN
標(biāo)準(zhǔn)包裝： 2,500
類型： D 類
輸出類型： 2-通道（立體聲）帶超低音器
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 2.3W x 3 @ 4 歐姆
電源電壓： 4.5 V ~ 5.5 V
特點(diǎn)： 消除爆音，短路保護(hù)和熱保護(hù)，關(guān)閉
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 36-TQFN 裸露焊盤（6x6）
封裝/外殼： 36-WFQFN 裸露焊盤
包裝： 帶卷 (TR)
MAX9706/MAX9707
3-Channel, 2.3W, Filterless Class D Amplifiers
with Active Crossover
______________________________________________________________________________________
15
Spread-Spectrum (SSM) Mode
The MAX9706/MAX9707 feature a unique spread-spec-
trum mode that flattens the wideband spectral compo-
nents, improving EMI emissions that can be radiated by
the speaker and cables. Enable SSM mode by setting
SYNC_IN = VDD (Table 1). In SSM mode, the switching
frequency varies randomly by ±50kHz around the cen-
ter frequency (1.15MHz). The modulation scheme
remains the same, but the period of the sawtooth wave-
form changes from cycle to cycle (Figure 3). 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. A proprietary amplifier
topology ensures this does not corrupt the noise floor in
the audio bandwidth.
VOUT_+ - VOUT_-
tSW
VIN_-
VIN_+
OUT_+
OUT_-
tON(MIN)
Figure 3. Output with an Input Signal Applied (SSM Mode)
Table 1. Operating Modes
SYNC_IN
MODE
GND
FFM with fOSC = 1100kHz
FLOAT
FFM with fOSC = 1340kHz
VDD
SSM with fOSC = 1150kHz ±50kHz
Clocked
FFM with fOSC = external clock frequency
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9708ECB+D 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 42W/21W CLS-D 64TQFP EP - Rail/Tube
MAX9708ECB+TD 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 42W/21W CLS-D 64TQFP EP - Tape and Reel
MAX9708ETN 制造商:Maxim Integrated Products 功能描述:20W/40W FILTERLESS, SPREAD-SPECTRUM, MONO/STE - Rail/Tube
MAX9708ETN/V+TD 制造商:Maxim Integrated Products 功能描述:20W/40W FILTERLESS, SPREAD SPECTRUM, MONO/STEREO, CLASS D AM - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC AMP AUDIO PWR 42W STER 56TQFN 制造商:Maxim Integrated Products 功能描述:Filterless Class D Amp Mono/Stereo
MAX9708ETN+ 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 42W/21W CLS-D 56TQFN EP - Rail/Tube
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