TDA1910.pdf

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10W AUDIO AMPLIFIER WITH MUTING
TDA1910
10W AUDIO AMPLIFIER WITH MUTING
DESCRIPTION
The TDA 1910 is a monolithic integrated circuit in
MULTIWATT [ package, intended for use in Hi-Fi
audio power applications, as high quality TV sets.
The TDA 1910 meets the DIN 45500 (d = 0.5%)
guaranteed output power of 10W when used at
24V/4W. At 24V/8W the output power is 7W min.
Features:
– muting facility
– protection against chip over temperature
– very low noise
– high supply voltage rejection
– low ”switch-on” noise.
The TDA 1910 is assembled in MULTIWATT
Multiwatt 11
ORDERING NUMBERS :
TDA1910 (Multiwatt11 Vertical)
TDA1910HS (Multiwatt11 Horizontal)
[
package that offers:
– easy assembly
– simple heatsink
– space and cost saving
– high reliability
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V s
Supply voltage
30
V
I o
Output peak current (non repetitive)
3.5
A
I o
Output peak current (repetitive)
3.0
A
V i
Input voltage
0 to + V s
V
V i
Differential input voltage
±
7
V
V 11
Muting thresold voltage
V s
V
P tot
Power dissipation at T case =90
°
C
20
W
T stg ,T j
Storage and junction temperature
-40 to 150
°
C
TEST CIRCUIT
(*) See fig. 13.
May 1997
1/14
20664273.002.png
TDA1910
PIN CONNECTION (Top view)
SCHEMATIC DIAGRAM
2/14
20664273.003.png
TDA1910
TEST CIRCUIT
(*) See fig. 13.
MUTING CIRCUIT
3/14
20664273.004.png
TDA1910
THERMAL DATA
Symbol
Parameter
Value
Unit
R th j-case Thermal resistance junction-case
max
3
°
C/W
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, T amb =25 ° C, R th (heatsink) = 4 ° C/W, unless
otherwise specified)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
V s
Supply voltage
8
30
V
V o
Quiescent output voltage
V s = 18V
V s = 24V
8.3
11.5
9.2
12.4
10
13.4
V
I d
Quiescent drain current
V s = 18V
V s = 24V
19
21
32
35
mA
V CE sat Output stage saturation voltage
I C =2A
1
V
I C = 3A
1.6
P o
Output power
d = 0.5%
V s = 18V
V s = 24V
V s = 24V
f = 40 to 15,000Hz
R L =4
W
R L =4
6.5
10
7
7
12
7.5
W
R L =8
W
W
d = 10%
V s = 18V
V s = 24V
V s = 24V
f = 1 KHz
R L =4
8.5
15
9
9.5
17
10
W
R L =8
W
d
Harmonic distortion
f = 40 to 15,000 Hz
V s = 18V
W
P o = 50 mW to 6.5W
R L =4
0.2
0.5
V s = 24V
W
P o = 50 mW to 10W
R L =4
0.2
0.5
%
V s = 24V
W
P o =50mWto 7W
R L =8
0.2
0.5
d
Intermodulation distortion
V s = 24V
R L =4
W
P o = 10W
f 1 = 250 Hz
f2 = 8 KHz
(DIN 45500)
0.2
%
V i
Input sensitivity
F = 1 KHz,
V s = 18V
v s = 24V
V s = 24V
W
R L =8 W
P o =7W
P o =12 W
P o = 7.5W
170
220
245
mV
V i
Input saturation voltage (rms)
V s = 18V
V s = 24V
1.8
2.4
V
R i
Input resistance (pin 5)
f = 1 KHz
60
100
K
W
I d
Drain current
V s = 24V
f = 1 KHz
R L =4
W
P o = 12W
820
475
mA
RL = 8
W
P o = 7.5W
4/14
W
R L =4
R L =4
W
R L =4
20664273.005.png
TDA1910
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
h
Efficiency
V s = 24V
f = 1 KHz
R L =4
W
P o = 12W
62
65
%
R L =8
W
P o = 7.5W
BW
Small signal bandwidth
V s = 24V
R L =4
W
P o = 1W
10 to 120,000
Hz
BW
Power bandwidth
V s = 24V
P o = 12W
R L =4
W
40 to 15,000
Hz
d
3
5%
G v
Voltage gain (open loop)
f = 1 KHz
75
dB
G v
Voltage gain (closed loop)
V s = 24V
f = 1 KHz
W
Po = 1W
29.5
30
30.5
dB
e N
Total input noise
W
R g =1K
1.2
1.3
1.5
3.0
3.2
4.0
W
(
°
)
m
V
R g = 10K
W
W
R g =1K
2.0
2.0
2.2
5.0
5.2
6.0
W
(
°°
)
m
V
R g = 10K
W
S/N
Signal to noise ratio
V s = 24V
P o = 12W
R L =4
R g = 10K
W
103
105
dB
R g =0
(
°
)
97
W
R g = 10K
W
100
100
R g =0
(
°°
)
93
dB
SVR
Supply voltage rejection
V s = 24V
RL = 4
W
50
60
dB
f ripple = 100 Hz
Rg = 10 K
W
T sd
Thermal sjut-down case (*)
temperature
P tot = 8W
110
125
°
C
MUTING FUNCTION (Refer to Muting circuit)
V T
Muting-off threshold voltage
(pin 11)
1.9
4.7
V
V T
Muting-on threshold voltage
(pin 11)
0
1.3
V
6
V s
R 1
Input resistance (pin 1)
Muting off
80
200
K
W
Muting on
10
30
W
R 11
Input resistance (pin 11)
150
K
W
A T
Muting attenuation
R g +R 1 =10K
W
50
60
dB
) Weighting filter = curve A.
) Filter with noise bandwidth: 22 Hz to 22 KHz.
(*) See fig. 29 and fig. 30.
5/14
R L =4
R g =50
R g =50
°
Note :
(
(
° °
20664273.001.png

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