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參數(shù)資料
| 型號(hào)： | AV2030 |
| 廠商： | Avic Technology |
| 英文描述： | LINEAR INTEGRATED CIRCUIT |
| 中文描述： | 線性集成電路 |
| 文件頁(yè)數(shù)： | 9/13頁(yè) |
| 文件大?。?/td> | 190K |
| 代理商： | AV2030 |
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QW-R107-004,B
The components values calculated for fc=900Hz using a Bessel 3rd Sallen and Key structure are:
C1=C2=C3=22nF,R1=8.2K
,R2=5.6K
,R3=33K
.
Using this type of crossover filter, a complete 3-way 60W active loudspeaker system is shown in Fig. 20.
It employs 2nd order Buttherworth filter with the crossover frequencies equal to 300Hz and 3kHz.
The midrange section consistors of two filters a high pass circuit followed by a low pass network. With Vs=36V the
output power delivered to the woofer is 25W at d=0.06%( 30W at d=0.5%).The power delivered to the midrange and
the tweeter can be optimized in the design phase taking in account the loudspeaker efficiency and
impedance(RL=4
to 8
).
It is quite common that midrange and tweeter speakers have an efficiency 3dB higher than woofers.
1
2
5
4
3
UTC
TDA2030
1
2
5
4
3
UTC
TDA2030
1
2
5
4
3
UTC
TDA2030
0
μ
F
2
μ
F
1
3
100
μ
F
0
μ
F
1
1
μ
F
0.1
μ
F
0.1
μ
F
0.22
μ
F
Vs+
1
3
100
μ
F
0.22
μ
F
0.1
μ
F
0.1
μ
F
47
μ
F
0
F
100
μ
F
0
μ
F
220
μ
F
0
μ
F
2200
μ
F
1
BD908
BD907
22k
1
4
1
1
3
22k
2
6
1
1
22k
22k
6
3
1
2.2k
Vs+
1N4001
1N4001
1N4001
8
1
2.2k
1
1
2
8
2
2
Vs+
1
μ
F
Vs+
IN
Woofer
Midrange
Tweeter
High-pass
3kHz
High-pass
3kHz
Band-pass
300Hz to 3kHz
Low-pass
300Hz
1N4001
@vic
AV
2
030
LINEAR INTEGRATED CIRCUIT
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