參數(shù)資料
型號(hào)： MAX97003EWP+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 17/48頁(yè)
文件大小： 0K
描述： IC AUDIO SUBSYSTEM LN 20WLP
標(biāo)準(zhǔn)包裝： 2,500
類(lèi)型： D 類(lèi)；H 類(lèi)
輸出類(lèi)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： 1W x 2 @ 8 歐姆
電源電壓： 2.7 V ~ 5.5 V
特點(diǎn)： 消除爆音，差分輸入，關(guān)閉
安裝類(lèi)型： *
供應(yīng)商設(shè)備封裝： *
封裝/外殼： *
包裝： *
Maxim Integrated Products 24
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
Dynamic Range Compressor (DRC)
The speaker amplifier features a dynamic range compres-
sor (DRC) that attenuates high-amplitude signals and
allows for a higher gain setting to be selected without
clipping the output signal. This increases the perceived
loudness of the audio signal and maintains a stable output
amplitude despite changes in input amplitude. Figure 4,
Figure 5, and Figure 6 demonstrate the benefits of using
the DRC. Each of these figures uses the same input signal.
To operate the DRC, select a threshold level, compres-
sion ratio, attack time constant, and release time through
registers 0x0A and 0x0B. When enabled, RMS signal
levels that cross above the selected DRC threshold level
are attenuated based on the selected compression ratio
(Figure 7). Attenuation is achieved by automatically mod-
ifying the speaker volume to a lower gain setting. The
user-selected gain setting is automatically restored when
the RMS signal level falls below the DRC threshold. The
attack time constant determines the time constant used
when the DRC engages. The release time determines the
time-per-step used when the DRC disengages.
Figure 4. Low-Signal to High-Signal Transition, No Clipping,
DRC Disabled
Figure 5. Low-Signal to High-Signal Transition, Increased Gain,
DRC Disabled
Figure 6. Low-Signal to High-Signal Transition, Increased Gain,
DRC Enabled
Figure 7. DRC Gain Curve
THRESHOLD
0.199 TO 0.839
0.85
∞:1
4:1
2:1
1.5:1
1:1
INPUT
(VRMS)
OUTPUT
(VRMS)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9700AEBC 制造商:Maxim Integrated Products 功能描述:1.2W LOW EMI FILTERLESS CLASS D - Rail/Tube
MAX9700AEBC+ 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO 1.6W CLS-D 12UCSP - Rail/Tube
MAX9700AEBC+T 功能描述:音頻放大器 1.2W L-EMI Filterles Class D Audio Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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
MAX9700AEBC-T 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(lèi)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
MAX9700AETB 制造商:Maxim Integrated Products 功能描述:1.2W, LOW EMI, FILTERLESS, CLASS D AUDIO AMPL - Rail/Tube
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