UTC2030 데이터 시트보기 (PDF) - Unspecified
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UTC2030 Datasheet PDF : 14 Pages
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UTC2030
LINEAR INTEGRATED CIRCUIT
Transient inter-modulation distortion(TIM)
Transient inter-modulation distortion is an unfortunate phenomena associated with negative-feedback amplifiers.
When a feedback amplifier receives an input signal which rises very steeply, i.e. contains high-frequency
components, the feedback can arrive too late so that the amplifiers overloads and a burst of inter-modulation
distortion will be produced as in Fig.22.Since transients occur frequently in music this obviously a problem for the
designed of audio amplifiers. Unfortunately, heavy negative feedback is frequency used to reduce the total
harmonic distortion of an amplifier, which tends to aggravate the transient inter-modulation(TIM situation.)The best
known
Vs+
Low-pass
300Hz
μ
μ
Ω
IN
μ1 F
Ω 22k
Ω 22k
1
5
BD908
Ω
μ 100 F
Ω
UTC2030
2
3
4
μ
Ω
Ω
BD907
μ 2200 F
Ω
Ω
μ
Vs+
Ω
μ
Band-pass
300Hz to 3kHz
μ μ Ω 0.1 F 0.1 F 22k
Ω 22k
Ω
Ω
High-pass
3kHz
μ μ 0.1 F 0.1 F
Ω
Ω
Ω
μ 100 F
Ω
Ω
μ 47 F
Vs+
μ 0.22 F
1N4001
1
5
UTC2030
4
2
3
1N4001
Ω 2.2k
μ 0.22 F
Vs+
1N4001
1
5
UTC2030
4
2
3
1N4001
Woofer
μ 220 F
Ω
μ
Ω
Midrange
μ 100 F
Ω
μ
Ω 2.2k
High-pass
3kHz
Tweeter
YOUWANG ELECTRONICS CO.LTD
10
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