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參數資料
型號: MAX98307EVKIT#
廠商: Maxim Integrated Products
文件頁數: 6/21頁
文件大小: 0K
描述: KIT EVAL FOR MAX98307
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
放大器類型: DG 類
輸出類型: 1-通道(單聲道)
在某負載時最大輸出功率 x 通道數量: 3.3W x 1 @ 8 歐姆
電源電壓: 2.6 V ~ 5.25 V
板類型: 完全填充
已用 IC / 零件: MAX98307
已供物品:
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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相關代理商/技術參數
參數描述
MAX98307EVKIT# 功能描述:音頻 IC 開發工具 MAX98307 Eval Kit RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估: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 開發工具 MAX98309 Eval Kit RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估: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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