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UTC UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R107-005,B

18W HI-FI AUDIO AMPLIFIER AND
35W DRIVER

DESCRIPTION
The UTC TDA2030A is a monolithic IC in Pentawatt
package 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.




1
TO-220B
PIN CONFIGURATIONS
1 Non inverting input
2 Inverting input
3 -VS
4 Output
5 +VS

ABSOLUTE MAXIMUM RATINGS
(Ta=25
°C)
PARAMETER SYMBOL
VALUE
UNIT
Supply Voltage
Vs
±22 V
Input Voltage
Vi
Vs
V
Differential Input Voltage
Vdi
±15 V
Peak Output Current(internally limited)
Io
3.5
A
Total Power Dissipation at Tcase=90
°C Ptot
20
W
Storage Temperature
Tstg
-40 ~ +150
°C
Junction Temperature
Tj
-40 ~ +150
°C


ELECTRICAL CHARACTERISTICS
(Refer to the test circuit, Vs =
±16V,Ta=25°C)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN TYP MAX UNIT
Supply Voltage
Vs

±6 ±22 V
Quiescent Drain
Current
Id

50
80
mA
Input Bias Current
Ib


0.2
2
µA
Input Offset Voltage
Vos
Vs=
±22V
±2
±20 mV
Input Offset Current
Ios


±20
±200 nA UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R107-005,B
PARAMETER SYMBOL
TEST
CONDITIONS
MIN TYP MAX UNIT
Output Power
Po
d=0.5%,Gv=26dB,f=40 to 15kHz
RL=4

RL=8

Vs=+-19V, RL=8


15
10
13

18
12
16


W
Power Bandwidth
BW
Po=15W,RL=4

100

KHz
Slew rate
SR


8

V/
µ sec
Open loop voltage
Gain
Gvo f=1kHz

80

dB
Closed Loop
Voltage Gain
Gvc
25.5 26
26.5
dB
Total harmonic
distortion
d
Po=0.1 to 14W, RL=4

f=40 to 15kHz
0.08
%


Po=0.1 to 14W,RL=4

f=1kHz
0.03
%


Po=0.1 to 9W,RL=8

f=40 to 15 kHz
0.5 %
Second Order CCIF
Intermodulation
distortion
d2 Po=4W
,RL=4

f2-f1=1 kHz
0.03
%
Third Order CCIF
Intermodulation
Distortion
d3
f1=14 kHz, f2=15kHz

0.08

%
Input Noise Voltage
e
N
B=curve
A
B= 22Hz to 22kHz
2
3

10
µV
Input Noise Current
i
N
B=curve
A
B= 22Hz to 22kHz
50
80

200
pA
Signal to Noise
Ratio
S/N RL=4
, Rg=10k, B=curve A
Po=15W
Po=1W


106
94


dB
dB
Input Resistance
(pin 1)
Ri Open
loop,f=1kHz
0.5 5

M

Supply Voltage
Rejection
SVR RL=4
,Gv=26dB
Rg=22k
,f=100Hz
54 dB
Thermal
Shut-Down
Junction
Temperature
Tj

145

°C


UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R107-005,B

TYPICAL APPLICATION


UTC
TDA2030A
1
2
3
5
4
Vi
+Vs
-Vs
C1
1
µF
C2
22
µF
C6
100
µF
C4
100nF
C7
220nF
C3
100
µF
C5
100nF
D1
1N4001
D1
1N4001
R3
22k R4
1 RL
R3
680 R1
22k R5
C8 UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R107-005,B

TEST CIRCUIT



Fig.1 Single supply amplifier
UTC
TDA2030A
1
2
3
5
4
Vi
+Vs
C7
220nF
0.1
µF
1N4001
100k R4
1 RL=4 4.7k 1N4001
100k 2.2
µF
100k 2.2
µF
100k 22
µF
220
µF
2200
µ
F
C
R
UTC
TDA2030A
1
2
3
5
4
Vi
+Vs
-Vs
C1
1
µF
C2
22
µF
C6
100
µF
C4
100nF
C7
220nF
C3
100nF
C5
220
µF
D1
1N4001
D1
1N4001
R3
22k R1
13k R4
1 RL
R3
680
UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R107-005,B
TYPICAL PERFORMANCE CHARACTERISTICS
102
103
104
105
106
107
101
-60
-20
20
60
100
140
Phase
Gain
Gv
(dB)
180
90
0
Phas
e
Fig.2 Open loop frequency
response
24
28
32
36
40
44
24
4
8
12
16
20
RL=4 RL=8 Gv=26dB
d=0.5%
f=40 to 15kHz
Fig.3 Output power vs. Supply
voltage
Fig.4 Total harmonic distortion
vs. output power
Fig.5 Two tone CCIF
intermodulation distortion
10-1
100
101
102
10-2
10-2
10-1
100
101
102
Vs=38V
RL=8 Vs=32V
RL=4 f=15kHz
f=1kHz
Gv=26dB
101
102
10-2
10-1
100
101
102
103
104
105
Order (2f1-f2)
Order (2f2-f1)
Vs=32V
Po=4W
RL=4 Gv=26dB
Fig.6 Large signal frequency
response
Fig.7 Maximum allowable power
dissipation vs. ambient
temperture
101
102
103
104
30
5
10
15
20
25
Vs=+-15V
RL=4 Vs=+-15V
RL=8 -50
0
50
100
150
200
30
5
10
15
20
25
infinite heatsink
heatsink having
Rty=25°C/W
heatsink having
Rth=4°C/W
heatsink having
Rth=8°C/W
Tamb (°C)
Ptot
(W)
Frequency (kHz)
Vo
(Vp-p)
Po (W)
Frequency (Hz)
Po (W)
Vs (V)
Frequency (Hz)
Po
(W)
d
( % )
d
( % )
UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R107-005,B
UTC
TDA2030A
1
2
3
5
4
Vi
+Vs
C3
0.
22
µ
F
R3
56k RL=4 R4
3.3k 1N4001
C4
10
µF
R1
56k C1
2.2
µF
R2
56k C2
22
µ
F
C5
220
µF
/40V
C8
2200
µF
R6
1.5 C6
0.
22
µ
F
R5
30k R7
1.5 1N4001
R8
1 C7
0.22
µF
BD908
BD907

Fig. 8 Single supply high power amplifier(UTC TDA2030+BD908/BD907)

TYPICAL PERFORMANCE OF THE CIRCUIT OF FIG. 8
PARAMETER SYMBOL
TEST
CONDITIONS
MIN TYP MAX
UNIT
Supply Voltage
Vs


36
44
V
Quiescent Drain
Current
Id Vs=36V
50

mA

d=0.5%,RL=4

f=40Hz to 15kHz,Vs=39V
35


Output Power

Po
d=0.5%,RL=4

f=40Hz to 15kHz,Vs=36V
28

W

d=0.5%,f=1kHz,
RL=4
,Vs=39V
44


d=0.5%,RL=4

f=1kHz,Vs=36V
35

Voltage Gain
Gv
f=1kHz
19.5
20
20.5
dB
Slew Rate
SR


8

V/
µsec
Total Harmonic
d
Po=20W,f=1kHz

0.02

%
Distortion

Po=20W,f=40Hz to 15kHz

0.05

%
Input Sensitivity
Vi
Gv=20dB,Po=20W,
f=1kHz,RL=4

890
mV

Signal to Noise

S/N
RL=4
,Rg=10k
B=curve A,Po=25W


108


dB
Ratio
RL=4
,Rg=10k
B=curve A,Po=25W
100



UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R107-005,B

TYPICAL PERFORMANCE CHARACTERISTICS




24
28
32
34
36
40
5
15
25
35
45
Fig. 10 Output power vs. supply
voltage
Po
(W)
Vs
(V)
10-1
100
101
10-2
10-1
100
f=15kHz
f=1kHz
Vs=36V
RL=4 Gv=20dB
d
(%)
Po
(W)
Fig. 11 Total harmonic distortion
vs. output power
100
250
400
550
700
0
5
10
15
20
Gv=26dB
Gv=20dB
Vi
(mV)
Po
(W)
Fig. 12 Output power vs.
Input level
0
5
10
15
20
0
8
16
24
32
Po
(W)
Ptot
(W)
Complete
Amplifier
BD908/
BD907
UTC
TDA2030A
Fig. 13 Power dissipation vs.
output power UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R107-005,B

Fig. 14 Typical amplifier with split power supply

Fig. 16 Bridge amplifier with split power supply(Po=34W,Vs+=16V,Vs-=16V)

UTC
TDA2030A
1
2
3
5
4
Vi
+Vs
-Vs
C1
1
µF
C2
22
µF
C6
100
µF
C4
100nF
C7
220nF
C3
100nF
C5
100
µF
D1
1N4001
D2
1N4001
R3
22k R1
22k R5
C8
R4
1 RL
R3
680 UTC
TDA2030A
UTC
TDA2030A
C1
220
µF
C6
100
µF
C7
100nF
1
2
3
5
4
1
2
3
4
5
C8
0.
22
µ
F
C4
22
µF
C9
0
.
22
µ
F
C5
22
µF
C3
100nF
C2
100
µF
R2
22k R5
22k R6
680 R9
1 R8
1 R4
680 R3
22k R7
22k R1
22k Vs+
Vs-
IN
RL
8
UTC TDA2030A LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
9
QW-R107-005,B

MULTIWAY SPEAKER SYSTEMS AND ACTIVE BOXES

Multiway loudspeaker systems provide the best possible acoustic performance since each loudspeaker is
specially designed and optimized to handle a limited range of frequencies. Commonly, these loudspeaker systems
divide the audio spectrum two or three bands.
To maintain a flat frequency response over the Hi-Fi audio range the bands cobered by each loudspeaker must
overlap slightly. Imbalance between the loudspeakers produces unacceptable results therefore it is important to
ensure that each unit generates the correct amount of acoustic energy for its segments of the audio spectrum. In this
respect it is also important to know the energy distribution of the music spectrum to determine the cutoff frequencies
of the crossover filters(see Fig. 18).As an example,1 100W three-way system with crossover frequencies of 400Hz
and 3khz would require 50W for the woofer,35W for the midrange unit and 15W for the tweeter.
Both active and passive filters can be used for crossovers but active filters cost significantly less than a good
passive filter using aircored inductors and non-electrolytic capacitors. In addition a