tda7052, Ham- CB Radio, Karty katalogowe
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INTEGRATED CIRCUITS
DATA SHEET
TDA7052
1 W BTL mono audio amplifier
Product specification
File under Integrated Circuits, IC01
July 1994
Philips Semiconductors
Product specification
1 W BTL mono audio amplifier
TDA7052
GENERAL DESCRIPTION
The TDA7052 is a mono output amplifier in a 8-lead dual-in-line (DIL) plastic package. The device is designed for
battery-fed portable audio applications.
Features:
·
No external components
·
No switch-on or switch-off clicks
·
Good overall stability
·
Low power consumption
·
No external heatsink required
·
Short-circuit proof
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
Supply voltage range
3
6
18
V
I
tot
Total quiescent current
R
L
=
¥
-
4
8
mA
G
v
Voltage gain
38
39
40
dB
P
o
Output power
THD = 10%; 8
W
-
1,2
-
W
THD
Total harmonic distortion
P
o
= 0,1 W
-
0,2
1,0
%
PACKAGE OUTLINE
8-lead DIL; plastic (SOT97); SOT97-1; 1996 August 21.
July 1994
2
Philips Semiconductors
Product specification
1 W BTL mono audio amplifier
TDA7052
Fig.1 Block diagram.
PINNING
1
V
P
supply voltage
5
OUT1
output1
2
IN
input
6
GND2
ground (substrate)
3
GND1
ground (signal)
7
n.c.
not connected
4
n.c.
not connected
8
OUT2
output2
July 1994
3
Philips Semiconductors
Product specification
1 W BTL mono audio amplifier
TDA7052
FUNCTIONAL DESCRIPTION
The TDA7052 is a mono output amplifier designed for battery-fed portable audio applications, such as tape recorders
and radios.
The gain is fixed internally at 40 dB. A large number of tape recorders and radios are still designed for mono sound, plus
a space-saving trend by reduction of the number of battery cells. This means a decrease in supply voltage which results
in an reduction of output power. To compensate for this reduction, the TDA7052 uses the Bridge-Tied-Load principle
(BTL) which can deliver an output power of 1,2 W (THD = 10%) into an 8
W
load with a power supply of 6 V. The load
can be short-circuited at each signal excursion.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
V
P
Supply voltage
-
18
V
I
OSM
Non-repetitive peak output current
-
1,5
A
P
tot
Total power dissipation
see Fig. 2
T
c
Crystal temperature
-
150
°
C
T
stg
Storage temperature range
-
55
+150
°
C
Fig.2 Power derating curve.
POWER DISSIPATION
Assume V
P
= 6 V; R
L
= 8
W
; T
amb
= 50
°
C maximum.
The maximum sinewave dissipation is 0,9 W.
R
th j-a
=
----------------------
110 K/W.
–
09
»
,
Where R
th j-a
of the package is 110 K/W, so no external heatsink is required.
July 1994
4
150 50
Philips Semiconductors
Product specification
1 W BTL mono audio amplifier
TDA7052
CHARACTERISTICS
V
P
= 6 V; R
L
= 8
W
; f = 1 kHz; T
amb
= 25
°
C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
P
Supply voltage range
3
6
18
V
I
tot
Total quiscent current
R
L
=
¥
-
4
8
mA
G
v
Voltage gain
38
39
40
dB
P
o
Output power
THD = 10%
-
1,2
-
W
Noise output voltage
(RMS value)
V
no(rms)
note 1
-
150
300
m
V
V
no(rms)
note 2
-
60
-
m
V
f
r
Frequency response
-
20 Hz to
-
Hz
20 kHz
SVRR
Supply voltage ripple rejection
note 3
40
50
-
dB
DC output offset voltage
D
V
5-8
pin 5 to 8
R
S
= 5 k
W-
-
100
mV
THD
Total harmonic distortion
P
O
= 0,1 W
-
0,2
1,0
%
ï
Z
I
ï
Input impedance
-
100
-
k
W
I
bias
Input bias current
-
100
300
nA
Notes to the characteristics
1. The unweighted RMS noise output voltage is measured at a bandwidth of 60 Hz to 15 kHz with a source impedance
(R
S
) of 5 k
W
W
and a frequency
H) the noise output current is only 100 nA.
3. Ripple rejection is measured at the output with a source impedance of 0
of 500 kHz. With a practical load (R = 8
W
; L = 200
m
and a frequency between 100 Hz and
10 kHz. The ripple voltage = 200 mV (RMS value) is applied to the positive supply rail.
W
July 1994
5
.
2. The RMS noise output voltage is measured at a bandwidth of 5 kHz with a source impedance of 0
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