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TDA2030A Schematic ( PDF Datasheet ) - ETC

Teilenummer TDA2030A
Beschreibung 14W HI-FI AUDIO AMPLIFIER
Hersteller ETC
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Gesamt 14 Seiten
		
TDA2030A Datasheet, Funktion
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:sales@contek-ic.com
1






TDA2030A Datasheet, Funktion
TDA2030A
LINEAR INTEGRATED CIRCUIT
+Vs
C1
Vi2.2 mF
R1
56kW
R6
1.5W
1
5
R3
56kW
Contek
TDA2030A
R2
56kW
2
3
C5
220 mF
/40V
4
BD908
R4
3.3kW
C4
10 mF
R5
30kW
R7
1.5W
BD907
C8
2200 mF
R8
1W
C7
0.22 mF
Fig. 8 Single supply high power amplifier( Contek TDA2030+BD908/BD907)
TYPICAL PERFORMANCE OF THE CIRCUIT OF FIG. 8
PARAMETER SYMBOL
TEST CONDITIONS
MIN
Supply Voltage
Vs
Quiescent Drain
Id
Vs=36V
Current
d=0.5%,RL=4W
f=40Hz to 15kHz,Vs=39V
d=0.5%,RL=4W
Output Power
Po f=40Hz to 15kHz,Vs=36V
d=0.5%,f=1kHz,
RL=4W Vs=39V
d=0.5%,RL=4W
f=1kHz,Vs=36V
Voltage Gain
Gv
f=1kHz
19.5
Slew Rate
SR
Total Harmonic
d
Po=20W,f=1kHz
Distortion
Po=20W,f=40Hz to 15kHz
Input Sensitivity
Vi
Gv=20dB,Po=20W,
f=1kHz,RL=4W
RL=4W,Rg=10kW
Signal to Noise
S/N
B=curve A,Po=25W
Ratio
RL=4W,Rg=10kW
B=curve A,Po=25W
TYP
36
50
35
28
44
35
20
8
0.02
0.05
890
108
100
MAX
44
20.5
UNIT
V
mA
W
dB
V/msec
%
%
mV
dB
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
6

6 Page







TDA2030A pdf, datenblatt
TDA2030A LINEAR INTEGRATED CIRCUIT
SR(Vm/ s)
m2
m1
Fig.23 20kHz sawtooth waveform
Input
Signal
Filtered
Output
Siganal
Fig.24 Inverting
sawtooth waveform
The result is an AC signal at the output whole peak-to-peak value is the TIM voltage, which can be measured
easily with an oscilloscope. If the peak- topeak value of the signal and the peak-to-peak of the inverting sawtooth are
measured, the TIM can be found very simply from:
VOUT
TIM =
* 100
Vsawtooth
1
10
TIM(%)
100
Fig. 25 TIM distortion Vs.
Output Power
TDA2030A
BD908/907
Gv=26dB
Vs=36V
RL=4W
2
10
SR(V/ s)
Fig. 26 TIM design
diagram(fc=30kHz)
RC Filter fc=30kHz
101
10-1 RC Filter fc=30kHz
100
10-2
10-1 100 101 Po(W) 102
10-1
10-1 100 101 102
Vo(Vp-p)
In Fig.25 The experimental results are shown for the 30W amplifier using the TDA2030A as a driver and a low-cost
complementary pair. A simple RC filter on the input of the amplifier to limit the maximum signal slope(SS) is an
effective way to reduce TIM.
The Diagram of Fig.26 originated by SGS can be used to find the Slew- Rate(SR) required for a given output power
or voltage and a TIM design target.
For example if an anti-TIM filter with a cutoff at 30kHz is used and the max. Peak to peak output voltage is 20V then,
referring to the diagram, a Slew-Rate of 6V/ ms is necessary for 0.1% TIM.
As shown Slew-Rates of above 10V/ ms do not contribute to a further reduction in TIM.
Slew-Rates of 100V/ms are not only useless but also a disadvantage in hi-fi audio amplifiers because they tend to turn
the amplifier into a radio receiver.
POWER SUPPLY
Using monolithic audio amplifier with non regulated supply correctly. In any working case it must provide a supply
voltage less than the maximum value fixed by the IC breakdown voltage.
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
12

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