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PDF TDA2030A Data sheet ( Hoja de datos )
| Número de pieza | TDA2030A | |
| Descripción | 14W HI-FI AUDIO AMPLIFIER | |
| Fabricantes | ETC | |
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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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TDA2030A LINEAR INTEGRATED CIRCUIT
14W HI-FI AUDIO AMPLIFIER
DESCRIPTION
The Contek TDA2030A is a monolithic audio power amplifier
integrated circuit.
FEATURES
*Very low external component required.
*High current output and high operating voltage.
*Low harmonic and crossover distortion.
*Built-in Over temperature protection.
*Short circuit protection between all pins.
*Safety Operating Area for output transistors.
PIN CONFIGURATIONS
1 Non inverting input
2 Inverting input
3 -VS
4 Output
5 +VS
1
TO-220B
ABSOLUTE MAXIMUM RATINGS(Ta=25 C)
PARAMETER
SYMBOL
Supply Voltage
Vs
Input Voltage
Vi
Differential Input Voltage
Vdi
Peak Output Current(internally limited)
Io
Total Power Dissipation at Tcase=90 C
Ptot
Storage Temperature
Tstg
Junction Temperature
Tj
VALUE
+-12
Vs
+-15
3.5
20
-40~+150
-40~+150
UNIT
V
V
V
A
W
C
C
ELECTRICAL CHARACTERISTICS(Refer to the test circuit, Vs =+-16V,Ta=25 C)
PARAMETER SYMBOL
TEST CONDITIONS
MIN TYP
MAX
Supply Voltage
Vs
+-6 +-22
Quiescent Drain
Id
50 80
Current
Input Bias Current
Ib
0.2 2
Input Offset Voltage
Vos
Vs=+-18v
+-2 +-20
Input Offset Current
Ios
+-20
+-200
UNIT
V
mA
mA
mV
nA
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:[email protected]
1
1 page  
TDA2030A LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
Gv 140
(dB)
100
Fig.2 Open loop frequency
response
Phase
180
90
Po 24
(W)
20
Fig.3 Output power vs. Supply
voltage
Gv=26dB
d=0.5%
f=40 to 15kHz
60
Gain
20
0 16
12
RL=4 W
RL=8 W
-20
-60
101
102
103 104
105 106 107
Frequency (Hz)
d 102
(% )
Fig.4 Total harmonic distortion
vs. output power
101 Gv=26dB
100
10-1
10-2
10-2
30
Vo
(Vp-p)
25
Vs=38V
RL=8 W
f=15kHz
f=1kHz
Vs=32V
RL=4 W
10-1 100
101 102
Po (W)
Fig.6 Large signal frequency
response
Vs=+-15V
RL=8 W
Vs=+-15V
20 RL=4 W
15
10
5
101
102 103 104
Frequency (kHz)
8
4
24 28 32 36 40 44
Vs (V)
d 102
(% )
101
Fig.5 Two tone CCIF
intermodulation distortion
Po (W)
Vs=32V
100
Po=4W
RL=4 W
Gv=26dB
10-1 Order (2f1-f2)
Order (2f2-f1)
10-2
101
30
Ptot
(W)
25
102 103
104 105
Frequency (Hz)
Fig.7 Maximum allowable power
dissipation vs. ambient
temperture
20
15
10
hRetha=ts8RihntekhXa=t4hsCian/vkWXinChga/Wving
5
-50
0
50 100
150 200
Tamb ( X C)
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:[email protected]
5
5 Page 
TDA2030A LINEAR INTEGRATED CIRCUIT
MUSICAL INSTRUMENTS AMPLIFIERS
Another important field of application for active system is music.
In this area the use of several medium power amplifiers is more convenient than a single high power amplifier, and it
is also more reliable. A typical example(see Fig. 21) consist of four amplifiers each driving a low-cost, 12 inch
loudspeaker. This application can supply 80 to 160W rms.
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
Fig.21 High power active box for musical
instrument
20 to 40W
Amplifier
20 to 40W
Amplifier
Fig.22 Overshoot phenomenon in
feedback amplifiers
FEEDBACK
PATH
V4
INPUT
PRE
V1 AMPLIFIER V2
POWER
V3 AMPLIFIER
OUTPUT
V4
20 to 40W
Amplifier
V1
V2
20 to 40W
Amplifier
V3
V4
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. A new approach (see Technical Note 143(Applied by
SGS to monolithic amplifiers measurement is fast cheap, it requires nothing more sophisticated than an
oscilloscope-and sensitive-and it can be used down to the values as low as 0.002% in high power amplifiers.
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.23 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.24.Inthe case of the saw-tooth in Fig. 25 the means level was increased by the TIM distortion, for a saw-tooth in
the other direction the opposite is true.
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:[email protected]
11
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| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet TDA2030A.PDF ] | |
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