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參數(shù)資料
| 型號： | EB-120 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | 20W Class D Single Channel Audio Amplifier |
| 中文描述： | 20瓦D類單聲道音頻放大器 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大?。?/td> | 392K |
| 代理商： | EB-120 |
ATA-120
This is preliminary information on a new product. Specifications are subject to change without notice.
129 Morgan Drive, Norwood, MA 02062
voice: (781) 551-9450
CONTROLLED DOCUMENT: P_903-000009_Rev14 ATA-120 Data Sheet.doc
fax: (781) 440-9528
email: apogee@apogeeddx.com
DRN: PRELIMINARY Page 5 of 13
4.0 Power Output
Figure 2 shows the full-scale sine-wave output power as a function of Power Supply Voltage for 2, 3, 4, 6, and 8
Ohm loads. Output power is constrained for higher impedance loads by the maximum voltage limit of the
ATA-120 and by the over-current protection limit for lower impedance loads. The minimum threshold for the over-
current protection circuit is 3.0A (at 25 oC) but the typical threshold is 5.0A. Solid lines depict typical output power
capability of the ATA-120. Dashed lines depict the output power capability constrained to the minimum current
specification of for the ATA-120. The output power curves assume proper thermal management of the power
device’s internal dissipation. Since The IC’s thermal path is predominantly through the leadframe to the PC Board
copper foil, a sufficient copper area must be connected to each lead in order to facilitate proper cooling.
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10% THD Output Power vs Supply Voltage
Power Supply Voltage (VDC)
1
2
3
4
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8
LEGEND
I
OUT
(min) = 3.0A
I
OUT
(typ) = 5.0A
RL=8
RL=8
RL=6
RL=6
RL=4
RL=4
RL=3
RL=3
RL=2
RL=2
Figure 2 – 10% THD Power Output vs. Power Supply Voltage
Note 6 : Sine-wave output power (<1% THD) is approximately 23% Lower.
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