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Электронный компонент: TDA7056B/N1/S5

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DATA SHEET
Product specification
Supersedes data of 1996 May 28
File under Integrated Circuits, IC01
1997 Aug 15
INTEGRATED CIRCUITS
TDA7056B
5 W mono BTL audio amplifier with
DC volume control
1997 Aug 15
2
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
FEATURES
DC volume control
Few external components
Mute mode
Thermal protection
Short-circuit proof
No switch-on and switch-off clicks
Good overall stability
Low power consumption
Low HF radiation
ESD protected on all pins.
GENERAL DESCRIPTION
The TDA7056B is a mono Bridge-Tied Load (BTL) output
amplifier with DC volume control.
It is designed for use in TV and monitors, but is also
suitable for battery-fed portable recorders and radios.
The device is contained in a 9-pin medium power
package.
A Missing Current Limiter (MCL) is built in. The MCL circuit
is activated when the difference in current between the
output terminal of each amplifier exceeds 100 mA
(300 mA typ.). This level of 100 mA allows for headphone
applications (single-ended).
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage
4.5
-
18
V
P
O
output power
V
P
= 12 V
R
L
= 16
3
3.5
-
W
R
L
= 8
5
5.5
-
W
G
v(max)
maximum total voltage gain
39.5
40.5
41.5
dB
gain control
68
73.5
-
dB
I
q(tot)
total quiescent current
V
P
= 12 V; R
L
=
-
9.2
13
mA
THD
total harmonic distortion
P
O
= 0.5 W
-
0.3
1
%
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA7056B
SIL9MPF
plastic single in-line medium power package with fin; 9 leads
SOT110-1
1997 Aug 15
3
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
input
7
MSA708 - 1
2
3
TDA7056B
VP
5
6
I + i
8
I i
TEMPERATURE
PROTECTION
4
signal
ground
DC volume control
1
n.c.
positive output
negative output
power
ground
Vref
STABILIZER
9
n.c.
PINNING
SYMBOL
PIN
DESCRIPTION
n.c.
1
not connected
V
P
2
positive supply voltage
V
I
3
voltage input
GND1
4
signal ground
VC
5
DC volume control
OUT+
6
positive output
GND2
7
power ground
OUT
-
8
negative output
n.c.
9
not connected
Fig.2 Pin configuration.
handbook, halfpage
MSA707
1
2
3
4
5
6
7
8
9
I
V
TDA7056B
n.c.
VP
OUT
GND2
OUT
GND1
VC
n.c.
1997 Aug 15
4
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
FUNCTIONAL DESCRIPTION
The TDA7056B is a mono BTL output amplifier with DC
volume control, designed for use in TV and monitor but is
also suitable for battery-fed portable recorders and radios.
In conventional DC volume circuits the control or input
stage is AC coupled to the output stage via external
capacitors to keep the offset voltage low. In the TDA7056B
the DC volume control stage is integrated into the input
stage so that no coupling capacitors are required. With this
configuration, a low offset voltage is still maintained and
the minimum supply voltage remains low.
The BTL principle offers the following advantages:
Lower peak value of the supply current
The frequency of the ripple on the supply voltage is twice
the signal frequency.
Consequently, a reduced power supply with smaller
capacitors can be used which results in cost reductions.
For portable applications there is a trend to decrease the
supply voltage, resulting in a reduction of output power at
conventional output stages. Using the BTL principle
increases the output power.
The maximum gain of the amplifier is fixed at 40.5 dB.
The DC volume control stage has a logarithmic control
characteristic. Therefore, the total gain can be controlled
from 40.5 dB to
-
33 dB. If the DC volume control voltage
falls below 0.4 V, the device will switch to the mute mode.
The amplifier is short-circuit proof to ground, V
P
and
across the load. Also a thermal protection circuit is
implemented. If the crystal temperature rises above
+150
C the gain will be reduced, thereby reducing the
output power. Special attention is given to switch-on and
switch-off clicks, low HF radiation and a good overall
stability.
Power dissipation
Assume V
P
= 12 V; R
L
= 16
.
The maximum sine wave dissipation is = 1.8 W.
The R
th vj-a
of the package is 55 K/W.
Therefore T
amb (max)
= 150
-
55
1.8 = 51
C.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
P
supply voltage
-
18
V
V
3, 5
input voltage pins 3 and 5
-
5
V
I
ORM
repetitive peak output current
-
1.25
A
I
OSM
non-repetitive peak output current
-
1.5
A
P
tot
total power dissipation
T
case
<
60
C
-
9
W
T
amb
operating ambient temperature
-
40
+85
C
T
stg
storage temperature
-
55
+150
C
T
vj
virtual junction temperature
-
+150
C
T
sc
short-circuit time
-
1
h
SYMBOL
PARAMETER
VALUE
UNIT
R
th j-a
thermal resistance from junction to ambient in free air
55
K/W
R
th j-c
thermal resistance from junction to case
10
K/W
1997 Aug 15
5
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
CHARACTERISTICS
V
P
= 12 V; V
DC
= 1.4 V; f = 1 kHz; R
L
= 16
; T
amb
= 25
C; unless otherwise specified (see Fig.13).
Notes
1. With a load connected to the outputs the quiescent current will increase, the maximum value of this increase being
equal to the DC output offset voltage divided by R
L
.
2. The noise output voltage (RMS value) at f = 500 kHz is measured with R
S
= 0
and B = 5 kHz.
3. The ripple rejection is measured with R
S
= 0
and f = 100 Hz to 10 kHz. The ripple voltage V
R
of 200 mV
(RMS value) is applied to the positive supply rail.
4. The noise output voltage (RMS value) is measured with R
S
= 5 k
unweighted.
5. The DC volume control can be configured in several ways. Two possible circuits are shown in Figs 14 and 15.
The circuits at the volume control pin will influence the switch-on and switch-off behaviour and the maximum voltage
gain.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
P
positive supply voltage
4.5
-
18
V
I
q(tot)
total quiescent current
note 1; R
L
=
-
9.2
13
mA
Maximum gain (V
5
= 1.4 V)
P
O
output power
THD = 10%; R
L
= 16
3
3.5
-
W
THD = 10%; R
L
= 8
5
5.5
-
W
THD
total harmonic distortion
P
O
= 0.5 W
-
0.3
1
%
G
v(max)
maximum total voltage gain
39.5
40.5
41.5
dB
V
I
input signal handling (RMS value)
G
v(max)
= 0 dB; THD
<
1%
1.0
-
-
V
V
no
noise output voltage (RMS value)
note 2; f = 500 kHz
-
210
-
V
B
bandwidth
at
-
1 dB
-
0.02 to 300
-
kHz
SVRR
supply voltage ripple rejection
note 3
34
38
-
dB
V
O
DC output offset voltage
V
8
-
v
6
-
0
200
mV
Z
I
input impedance (pin 3)
15
20
25
k
Mute position
V
O
output voltage in mute position
note 4; V
5
0.4 V;
V
I
= 1.0 V
-
35
45
V
DC volume control; note 5
gain control
68
73.5
-
dB
I
5
control current
V
5
= 0 V
-
20
-
25
-
30
A
1997 Aug 15
6
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
Fig.3
Gain control as a function of DC volume
control.
handbook, halfpage
0
2.0
40
-
80
-
120
0
MBH372
0.4
0.8
1.2
1.6
-
40
Gv
(dB)
V (V)
DC
Fig.4
Noise output voltage as a function of DC
volume control.
Measured with R
S
= 5 k
unweighted.
Frequency range is 22 Hz to 22 kHz.
handbook, halfpage
2
0
Vno
(mV)
MBH365
1
10
-
1
10
-
2
0.4
0.8
1.2
1.6
VDC (V)
Fig.5
Control current as a function of DC volume
control.
handbook, halfpage
0
2.0
25
-
15
-
25
15
MBH376
0.4
0.8
1.2
1.6
-
5
VDC (V)
5
IDC
(
A)
Fig.6 Quiescent current versus supply voltage.
Measured with R
L
=
.
handbook, halfpage
0
20
15
5
MBH367
10
20
4
IP
(mA)
8
12
16
VP (V)
1997 Aug 15
7
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
Fig.7
Total harmonic distortion versus output
power.
(1) R
L
16
.
(2) R
L
= 8
.
handbook, halfpage
10
6
4
2
0
MBH361
10
-1
1
PO (W)
THD
(%)
10
8
(1)
(2)
Fig.8 Total harmonic distortion versus frequency.
P
O
= 0.1 W.
(1) G
v(max)
= 40 dB.
(2) G
v(max)
= 30 dB.
handbook, halfpage
0
MBH362
10
2
4
6
8
10
-
2
10
2
10
-
1
1
10
f (kHz)
THD
(%)
(1)
(2)
Fig.9 Output power versus supply voltage.
Measured at a THD of 10%. The maximum output power is limited by
the maximum power dissipation and the maximum available output
current.
(1) R
L
= 8
.
(2) R
L
= 16
.
handbook, halfpage
0
20
10
0
2
MBH363
4
6
8
4
PO
(W)
8
12
16
VP (V)
(1)
(2)
Fig.10 Total worst case power dissipation versus
supply voltage.
(1) R
L
= 8
.
(2) R
L
= 16
.
handbook, halfpage
0
20
6
0
1
MBH364
2
3
5
4
4
Pd
(W)
8
12
16
VP (V)
(1)
(2)
1997 Aug 15
8
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
Fig.11 Supply voltage ripple rejection versus
frequency.
handbook, halfpage
-
70
-
60
-
50
-
40
-
30
-
20
MBH374
10
-
2
10
-
1
1
10
10
2
f (kHz)
SVRR
(dB)
(1)
(2)
Measured with V
R
= 0.2 V.
(1) V
DC
= 1.4 V.
(2) V
DC
= 0.4 V.
Fig.12 Input signal handling.
handbook, halfpage
0
20
2.0
0
0.4
MBH375
0.8
1.2
1.6
4
VI
(V)
8
12
16
VP (V)
Measured at a THD of 1% and a voltage gain of 0 dB.
1997 Aug 15
9
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
TEST AND APPLICATION INFORMATION
For single-end application the output peak current may not exceed 100 mA; at higher output currents the short circuit
protection (MLC) will be activated.
Fig.13 Test and application diagram.
To avoid instabilities and too high distortion, the input- and power ground must be separated as long as possible and connected together as close as
possible to the IC.
(1) This capacitor can be omitted if the 220
F electrolytic capacitor is connected close to pin 2.
handbook, full pagewidth
input
0.47
F
7
MSA709 - 2
100 nF
220
F
2
3
TDA7056B
VP = 12 V
(1)
5
I
-
i
5 k
RS
6
8
STABILIZER
TEMPERATURE
PROTECTION
4
ground
DC
volume
control
RL = 8
1
n.c.
9
n.c.
I
+
i
+
-
1997 Aug 15
10
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
Fig.14 Application with potentiometer as volume
control; maximum gain = 34 dB.
handbook, halfpage
MSA710
5
volume
control
1 M
1
F
Fig.15 Application with potentiometer as volume
control; maximum gain = 40 dB.
handbook, halfpage
MBH366
5
volume
control
VP = 12 V
22 k
100 k
1
F
1997 Aug 15
11
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
PACKAGE OUTLINE
UNIT
A
A
max.
2
A
3
b
1
D
1
b
2
b
c
D
(1)
E
(1)
Z
max.
(1)
e
L
P
P
1
q
1
q
2
q
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
EIAJ
mm
18.5
17.8
3.7
8.7
8.0
A
4
15.8
15.4
1.40
1.14
0.67
0.50
1.40
1.14
0.48
0.38
21.8
21.4
21.4
20.7
6.48
6.20
3.4
3.2
2.54
1.0
5.9
5.7
4.4
4.2
3.9
3.4
15.1
14.9
Q
1.75
1.55
DIMENSIONS (mm are the original dimensions)
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
2.75
2.50
SOT110-1
92-11-17
95-02-25
0
5
10 mm
scale
0.25
w
D
E
A
A
c
A
2
3
A
4
q
1
q
2
L
Q
w
M
b
b
1
b
2
D
1
P
q
1
Z
e
1
9
P
seating plane
pin 1 index
SIL9MPF: plastic single in-line medium power package with fin; 9 leads
SOT110-1
1997 Aug 15
12
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
SOLDERING
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our
"IC Package Databook" (order code 9398 652 90011).
Soldering by dipping or by wave
The maximum permissible temperature of the solder is
260
C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.
The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T
stg max
). If the
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.
Repairing soldered joints
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300
C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400
C, contact may be up to 5 seconds.
DEFINITIONS
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
1997 Aug 15
13
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
NOTES
1997 Aug 15
14
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
NOTES
1997 Aug 15
15
Philips Semiconductors
Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
NOTES
Internet: http://www.semiconductors.philips.com
Philips Semiconductors a worldwide company
Philips Electronics N.V. 1997
SCA55
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Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,
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Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,
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Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,
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Middle East: see Italy
Printed in The Netherlands
547027/1200/03/pp16
Date of release: 1997 Aug 15
Document order number:
9397 750 02728