tda1910, Ham- CB Radio, Karty katalogowe
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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
TDA1910
PIN CONNECTION
(Top view)
SCHEMATIC DIAGRAM
2/14
TDA1910
TEST CIRCUIT
(*) See fig. 13.
MUTING CIRCUIT
3/14
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
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 :
(
(
° °
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