參數(shù)資料
型號(hào): MAX9708ETN+D
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 9/22頁(yè)
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 42W STER 56TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 37
類型: D 類
輸出類型: 1-通道(單聲道)或 2-通道(立體聲)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量: 42W x 1 @ 4 歐姆; 21W x 2 @ 8 歐姆
電源電壓: 10 V ~ 18 V
特點(diǎn): 消除爆音,差分輸入,靜音,短路和熱保護(hù),關(guān)機(jī)
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 56-TQFN-EP(8x8)
封裝/外殼: 56-WFQFN 裸露焊盤
包裝: 管件
產(chǎn)品目錄頁(yè)面: 1392 (CN2011-ZH PDF)
MAX9708
20W/40W, Filterless, Spread-Spectrum,
Mono/Stereo, Class D Amplifier
17
Maxim Integrated
Mismatch in the components can cause discrepancies
between the nominal transfer function and actual perfor-
mance. Also, the mismatch of the input resistors (R15,
R17, R19, and R21 in Figure 6) of the summing amplifier
and lowpass filter will cause some high-frequency sound
to be sent to the subwoofer.
The circuit in Figure 6 drives a pair of MAX9708 devices
similar to the circuit in Figure 5. The inputs to the
MAX9708 still require AC-coupling to prevent compro-
mising the click-and-pop performance of the MAX9708.
The left and right drivers should be at an 8
Ω to 12Ω
impedance, whereas the subwoofer can be 4
Ω to 12Ω
depending on the desired output power, the available
power-supply voltage, and the sensitivity of the individ-
ual speakers in the system. The four gain settings of
the MAX9708 allow gain adjustments to match the sen-
sitivity of the speakers.
Figure 5. Multiple Amplifiers Implement a 2.1 Audio System
MAX9708
HIGHPASS
FILTER
8
Ω
FULL-
RANGE
SPEAKER
8
Ω
FULL-
RANGE
SPEAKER
4
Ω OR 8Ω
WOOFER
RIGHT
AUDIO
LEFT
AUDIO
HIGHPASS
FILTER
LOWPASS
FILTER
Σ
VDIGITAL
OUTR+
OUTR-
OUTL+
OUTL-
OUTR+
OUTR-
OUTL+
OUTL-
INR+
INR-
MONO
INL+
INL-
INR+
SYNCIN
SYNCOUT
INR-
MONO
INL+
INL-
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9708ETN-T 制造商:Maxim Integrated Products 功能描述:20W/40W FILTERLESS, SPREAD-SPECTRUM, MONO/STE - Tape and Reel
MAX9708EVKIT 功能描述:音頻放大器 Evaluation Kit for the MAX9708 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9709ECB+ 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 50W/29W CLS-D 64TQFP EP - Rail/Tube
MAX9709ECB+T 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 50W/29W CLS-D 64TQFP EP - Tape and Reel
MAX9709ETN 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel