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參數(shù)資料
| 型號： | SSM2311CBZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO 3.3W MONO D 9WLCSP |
| 產(chǎn)品變化通告： | SSM2311 Discontinuation 22/Feb/2011 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | D 類 |
| 輸出類型： | 1-通道（單聲道） |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 3.3W x 1 @ 3 歐姆 |
| 電源電壓： | 2.5 V ~ 5.5 V |
| 特點(diǎn)： | 消除爆音，差分輸入，短路和熱保護(hù)，關(guān)閉 |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 9-WLCSP（1.52 x 1.69） |
| 封裝/外殼： | 9-UFBGA，WLCSP |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 產(chǎn)品目錄頁面： | 764 (CN2011-ZH PDF) |
| 其它名稱： | SSM2311CBZ-REEL7DKR |
SSM2311
Rev. 0 | Page 16 of 20
INPUT CAPACITOR SELECTION
The SSM2311 does not require input coupling capacitors if the
input signal is biased from 1.0 V to VDD 1.0 V. Input capacitors
are required if the input signal is not biased within this recom-
mended input dc common-mode voltage range, if high-pass
filtering is needed (Figure 43), or if using a single-ended source
(Figure 44). If high-pass filtering is needed at the input, the input
capacitor along with the input resistor of the SSM2311 forms a
high-pass filter whose corner frequency is determined by the
following equation:
fC = 1/(2π × RIN × CIN)
The input capacitor can significantly affect the performance of
the circuit. Not using input capacitors degrades both the output
offset of the amplifier and the PSRR performance.
PROPER POWER SUPPLY DECOUPLING
To ensure high efficiency, low THD, and high PSRR, proper power
supply decoupling is necessary. Noise transients on the power
supply lines are short-duration voltage spikes. Although the actual
switching frequency can range from 10 kHz to 100 kHz, these
spikes can contain frequency components that extend into the
hundreds of megahertz. The power supply input needs to be
decoupled with a good quality low ESL, low ESR capacitor—usually
of around 4.7 μF. This capacitor bypasses low frequency noises
to the ground plane. For high frequency transients noises, use a
0.1 μF capacitor as close as possible to the VDD pin of the device.
Placing the decoupling capacitor as close as possible to the SSM2311
helps maintain efficiency performance.
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| SSM2311-EVALZ | 制造商:Analog Devices 功能描述:Evaluation Board For SSM2311 Class-D Audio Amplifier 制造商:Analog Devices 功能描述:EVAL BD FOR SSM2311 CLS-D AUD AMP - Bulk 制造商:Analog Devices 功能描述:Class-D Audio Amplifier Eval. Board |
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| SSM2312GN | 制造商:SSC 制造商全稱:Silicon Standard Corp. 功能描述:N-channel Enhancement-mode Power MOSFET |
| SSM2313GN | 制造商:SSC 制造商全稱:Silicon Standard Corp. 功能描述:P-channel Enhancement-mode Power MOSFET |
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