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參數(shù)資料
| 型號(hào)： | MAX98307ETE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUD 3.3W MONO DG 16TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | DG 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 @ 8 歐姆 |
| 電源電壓： | 2.6 V ~ 5.25 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： | 16-TQFN-EP（3x3） |
| 封裝/外殼： | 16-WFQFN 裸露焊盤 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | MAX98307ETE+TDKR |
Maxim Integrated Products 14
MAX98307/MAX98308
3.3W Mono Class DG Multilevel Audio Amplifier
The Class DG multilevel efficiency compares favor-
ably with Class AB and Class G amplifiers as shown in
Figure 2. Note that efficiency at 1W is 85%.
EMI Filterless Output Stage
Traditional Class D amplifiers require the use of external
LC filters, or shielding, to meet electromagnetic-interfer-
ence (EMI) regulation standards. The active emissions
limiting edge-rate control circuitry and Class DG multilev-
el modulation scheme reduce EMI emissions without the
need for external filtering components, while maintaining
high efficiency (see Figure 3).
Amplifier Current Limit
If the output current of the speaker amplifier exceeds the
current limit, the ICs disable the outputs for approximate-
ly 100Fs. After 100Fs, the outputs are reenabled. If the
fault condition still exists, the ICs continue to disable and
reenable the outputs until the fault condition is removed.
Figure 2. Class DG Multilevel vs. Typical Class G and Class
AB Amplifier Efficiency
Figure 3. EMI Performance with VPVDD = 5V, 12in of Speaker Cable, No Output Filter
EFFICIENCY vs. OUTPUT POWER
MAX98307
fig02
OUTPUT POWER (W)
EFFICIENCY
(%)
1.8
1.6
1.2 1.4
0.4 0.6 0.8 1.0
0.2
10
20
30
40
50
60
70
80
90
0
2.0
MAX98307/MAX98308
CLASS DG MULTILEVEL AMPLIFIER
CLASS AB AMPLIFIER
CLASS G AMPLIFIER
VPVDD = 5V
fIN = 1kHz
100
0
-10
10
30
50
70
90
200 300 400 500
EN55022B LIMIT
HORIZONTAL
VERTICAL
600 700 800 900 1000
FREQUENCY (MHz)
EMISSIONS
LEVEL
(dBV/m)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX98307EVKIT# | 功能描述:音頻 IC 開發(fā)工具 MAX98307 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| MAX98308EWC+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX98308EWC+T | 制造商:Maxim Integrated Products 功能描述:AMPLIFIER - Tape and Reel |
| MAX98309EVKIT# | 功能描述:音頻 IC 開發(fā)工具 MAX98309 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| MAX98309EWL+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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