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PDF TDA2030A Data sheet ( Hoja de datos )
| Número de pieza | TDA2030A | |
| Descripción | 18W HI-FI AUDIO AMPLIFIER AND 35W DRIVER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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 1. HiFi Power Amplifier - ST  Hay una vista previa y un enlace de descarga de TDA2030A (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
TDA2030A
LINEAR INTEGRATED CIRCUIT
18W HI-FI AUDIO AMPLIFIER
AND 35W DRIVER
DESCRIPTION
The UTC TDA2030A is a monolithic IC intended for use as
low frequency class AB amplifier.
With Vs=max=44V it is particularly suited for more reliable
applications without regulated supply and for 35W driver circuits
using low-cost complementary pairs.
The UTC TDA2030A provides high output current and has
very low harmonic and cross-over distortion.
Further the device incorporates a short circuit protection
system comprising and arrangement for automatically limiting
the dissipated power so as to keep the working point of the
output transistors within their safe operating area. A
conventional thermal shut-down system is also included.
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
TDA2030A-TA5-T
TDA2030AL-TA5-T
TDA2030A-TB5-T
TDA2030AL-TB5-T
Package
TO-220-5
TO-220B
*Pb-free plating product number: TDA2030AL
Packing
Tube
Tube
TDA2030AL-TA5-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) T: Tube
(2) TA5: TO-220-5, TB5: TO-220B
(3) L: Lead Free Plating, Blank: Pb/Sn
PIN CONFIGURATION
PIN NO.
1
2
3
4
5
PIN NAME
Non inverting input
Inverting input
-VS
Output
+VS
www.unisonic.com.tw
Copyright © 2007 Unisonic Technologies Co., Ltd
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TDA2030A
TYPICAL CHARACTERISTICS
Open Loop Frequency Response
140
180
Phase
100 90
60
Gain
20
0
-20
-60
1
10
2
10
34
10 10
5 67
10 10 10
Frequency (Hz)
Total Harmonic Distortion vs.
Output Power
102
101 Gv=26dB
100
10-1
10-2
10-2
Vs=38V
RL=8
f=15kHz
f=1kHz
Vs=32V
RL=4
10-1 100
101
Output Power, PoUT (W)
102
Large Signal Frequency Response
30
Vs=±15V
RL=8
25
Vs=±15V
20 RL=4
15
10
5
1
10
23
10 10
Frequency (kHz)
4
10
LINEAR INTEGRATED CIRCUIT
Output Power vs. Supply Voltage
24
Gv=26dB
d=0.5%
20 f=40 to 15kHz
RL=4
16
RL=8
12
8
4
24
28 32 36 40
Supply Voltage, Vs (V)
44
Two Tone CCIF Intermodulation
Distortion
PoUT (W)
102
101
100
10-1
10-2
101
Vs=32V
PoUT=4W
RL=4
Gv=26dB
Order (2f1-f2)
Order (2f2-f1)
102 103
104
Frequency (Hz)
105
Maximum Allowable Power
Dissipation vs. Ambient Temperture
30
25
20
15 hRetaht=s8iRhn°etkCha=ht/sW4ai°nvCkin/hWgaving
10
5
-50
0
50 100
150
Ambient Temperture, Ta ( )
200
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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TDA2030A
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.5. 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.)
Fig.4 High Power Active Box For Musical Instrument
20 to 40W
Amplifier
20 to 40W
Amplifier
Fig.5 Overshoot Phenomenon In Feedback Amplifiers
FEEDBACK
PATH
¦ÂV4
INPUT
PRE AMPLIFIER
V1 V2
V3
POWER
AMPLIFIER
OUTPUT
V4
20 to 40W
Amplifier
V1
V2
20 to 40W
Amplifier
V3
V4
The best known method for the measurement of TIM consists of feeding sine waves superimposed onto square
wavers, into the amplifier under test. The output spectrum is then examined using a spectrum analyzer and
compared to the input. This method suffers from serious disadvantages: the accuracy is limited, the measurement is
a tatter delicate operation and an expensive spectrum analyzer is essential.
The "inverting-sawtooth" method of measurement is based on the response of an amplifier to a 20KHz saw-tooth
wave-form. The amplifier has no difficulty following the slow ramp but it cannot follow the fast edge. The output will
follow the upper line in Fig. 6 cutting of the shade area and thus increasing the mean level. If this output signal is
filtered to remove the saw-tooth, direct voltage remains which indicates the amount of TIM distortion, although it is
difficult to measure because it is indistinguishable from the DC offset of the amplifier. This problem is neatly avoided
in the IS-TIM method by periodically inverting the saw-tooth wave-form at a low audio frequency as shown in Fig.7.In
the case of the saw-tooth in Fig. 8 the mean level was increased by the TIM distortion, for a saw-tooth in the other
direction the opposite is true.
SR(V/ s)
m2
m1
Fig.6 20kHz Sawtooth Waveform
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Input
Signal
Filtered
Output
Siganal
Fig. 7 Inverting Sawtooth Waveform
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| PDF Descargar | [ Datasheet TDA2030A.PDF ] | |
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