Page 1
INTEGRATED CIRCUITS
DATA SH EET
TDA8561Q
2 × 24 W BTL or 4 × 12 W
single-ended car radio power
amplifier
Product specification
Supersedes data of 1997 Sep 22
File under Integrated Circuits, IC01
1999 Jun 30
Page 2
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
FEATURES
• Requires very few external components
• High output power
• Flexibility in use; Quad single-ended or stereo BTL
• Low output offset voltage
• Fixed gain
• Diagnostic facility (distortion, short-circuit and
temperature detection)
• Good ripple rejection
• Mode select switch (operating, mute and standby)
• Load dump protection
• AC and DC short-circuit safe to ground and to V
• Low power dissipation in any short-circuit condition
• Thermally protected
QUICK REFERENCE DATA
P
TDA8561Q
• Reverse polarity safe
• Electrostatic discharge protection
• No switch-on/switch-off plop
• Flexible leads
• Low thermal resistance
• Identical inputs (inverting and non-inverting).
GENERAL DESCRIPTION
The TDA8561Q is an integrated class-B output amplifier in
a 17-lead single-in-line (SIL) power package. It contains
4 × 12 W Single-Ended (SE) or 2 × 24 W Bridge-Tied
Load (BTL) amplifiers.
The device is primarily developed for car radio
applications.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
I
ORM
I
P
I
sb
positive operating supply voltage 6 14.4 18 V
repetitive peak output current −−4A
total quiescent current − 80 − mA
standby current − 0.1 100 µA
Stereo BTL application
P
o
output power RL=4Ω; THD = 10% − 24 − W
RR supply voltage ripple rejection 46 −−dB
V
no
Z
input impedance 25 −−kΩ
I
| DC output offset voltage −−150 mV
∆V
O
noise output voltage Rs=0Ω−70 −µV
Quad single-ended application
P
o
output power THD = 10%
R
=4Ω−7−W
L
=2Ω−12 − W
R
L
RR supply voltage ripple rejection 46 −−dB
V
no
Z
input impedance 50 −−kΩ
I
noise output voltage Rs=0Ω−50 −µV
ORDERING INFORMATION
TYPE
NUMBER
NAME DESCRIPTION VERSION
PACKAGE
TDA8561Q DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm) SOT243-1
1999 Jun 30 2
Page 3
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
BLOCK DIAGRAM
non-inverting
input 1
inverting
input 2
supply voltage
ripple rejection
non-inverting
input 4
1
60
kΩ
2
kΩ
60
kΩ
3
2
kΩ
x1
4
17
60
kΩ
2
kΩ
18 kΩ
18 kΩ
stand-by
switch
VA
15 kΩ
15 kΩ
mute switch
VA
mute switch
VA
V
P
mute switch
VA
C
m
C
m
PROTECTIONS
thermal
short-circuit
mute
reference
voltage
C
m
power stage
power stage
stand-by
reference
voltage
mute
switch
V
P1
5
13
TDA8561Q
TDA8561Q
V
P2
6
output 1
8
output 2
mode
14
select
switch
16
diagnostic
output
12
output 4
18 kΩ
mute switch
60
kΩ
inverting
input 3
15
2
kΩ
input
reference
voltage
2711
ground
(signal)
VA
18 kΩ
9
not connected
Fig.1 Block diagram.
1999 Jun 30 3
C
m
GND1 GND2
power ground (substrate)
power stage
power stage
MEA858 - 1
10
output 3
Page 4
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
PINNING
SYMBOL PIN DESCRIPTION
−INV 1 1 non-inverting input 1
GND(S) 2 signal ground
INV 2 3 inverting input 2
RR 4 supply voltage ripple rejection
V
P1
OUT 1 6 output1
GND1 7 power ground 1
OUT 2 8 output2
n.c. 9 not connected
OUT 3 10 output 3
GND2 11 power ground 2
OUT 4 12 output 4
V
P2
MODE 14 mode select switch input
INV 3 15 inverting input 3
V
DIAG
−INV 4 17 non-inverting input 4
5 supply voltage
13 supply voltage
16 diagnostic output
INV 1
GND(S)
INV 2
RR
V
P1
OUT 1
GND1
OUT 2
n.c.
OUT 3
GND2
OUT 4
V
P2
MODE
INV 3
V
DIAG
INV 4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
TDA8561Q
TDA8561Q
MEA859 - 1
Fig.2 Pin configuration.
1999 Jun 30 4
Page 5
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
FUNCTIONAL DESCRIPTION
The TDA8561Q contains four identical amplifiers and can
be used for Single-Ended (SE) or Bridge-Tied Load (BTL)
applications. The gain of each amplifier is fixed at 20 dB
(26 dB in BTL). Special features of the device are:
Mode select switch (pin 14)
• Low standby current (<100 µA)
• Low switching current (low cost supply switch)
• Mute facility.
To avoid switch-on plops, it is advised to keep the amplifier
in the mute mode during ≥100 ms (charging of the input
capacitors at pins 1, 3, 15 and 17). This can be achieved
by:
• Microcontroller control
• External timing circuit (see Fig.11).
Diagnostic output (pin 16)
TDA8561Q
During this short-circuit condition, pin 16 is LOW for 20 ms
and HIGH for 50 µs (see Fig.5).
The power dissipation in any short-circuit condition is very
low.
handbook, halfpage
V
O
0
V
16
V
P
0
MGA705
t
D
YNAMIC DISTORTION DETECTOR (DDD)
At the onset of clipping of one or more output stages, the
dynamic distortion detector becomes active and pin 16
goes LOW. This information can be used to drive a sound
processor or DC volume control to attenuate the input
signal and thus limit the distortion. The output level of
pin 16 is independent of the number of channels that are
clipping (see Figs 3 and 4).
S
HORT-CIRCUIT PROTECTION
When a short-circuit occurs at one or more outputs to
ground or to the supply voltage, the output stages are
switched off until the short-circuit is removed and the
device is switched on again, with a delay of approximately
20 ms, after removal of the short-circuit. During this
short-circuit condition, pin 16 is continuously LOW.
When a short-circuit across the load of one or both
channels occurs the output stages are switched off for
approximately 20 ms. After that time it is checked during
approximately 50 µs to see whether the short-circuit is still
present. Due to this duty cycle of 50 µs/20 ms the average
current consumption during this short-circuit condition is
very low (approximately 40 mA).
Fig.3 Distortion detector waveform; BTL
application.
handbook, halfpage
V
O
0
V
16
V
P
0
MGA706
t
Fig.4 Distortion detector waveform; single-ended
application.
1999 Jun 30 5
Page 6
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
handbook, full pagewidth
TEMPERATURE DETECTION
current
in
output
stage
V
16
short-circuit over the load
V
P
Fig.5 Short-circuit waveform.
TDA8561Q
MGL214
t
20 ms
t
50 µs
When the virtual junction temperature Tvjreaches 150 °C, pin 16 will be active LOW.
O
PEN-COLLECTOR OUTPUT
Pin 16 is an open-collector output, which allows pin 16 of more devices being tied together.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
v
P
positive supply voltage
operating − 18 V
non-operating − 30 V
≥ 2.5 ms − 45 V
r
I
OSM
I
ORM
T
stg
T
amb
T
vj
V
psc
V
pr
P
tot
load dump protection during 50 ms; t
non-repetitive peak output current − 6A
repetitive peak output current − 4A
storage temperature −55 +150 °C
operating ambient temperature −40 +85 °C
virtual junction temperature − 150 °C
AC and DC short-circuit safe voltage − 18 V
reverse polarity − 6V
total power dissipation − 60 W
1999 Jun 30 6
Page 7
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
TDA8561Q
car radio power amplifier
THERMAL CHARACTERISTICS
In accordance with IEC 747-1.
SYMBOL PARAMETER VALUE UNIT
R
th j-a
R
th j-c
handbook, halfpage
thermal resistance from junction to ambient in free air 40 K/W
thermal resistance from junction to case (see Figs 6 and 7) 1.3 K/W
virtual junction
output 3 output 4
3.0 K/W
3.0 K/W
0.7 K/W
virtual junction
2.2 K/W
handbook, halfpage
output 1 output 2
output 1 output 2
3.0 K/W
2.2 K/W
0.7 K/W
3.0 K/W
0.2 K/W
case
MEA861 - 1
Fig.6 Equivalent thermal resistance network;
BTL application.
MEA860 - 2
0.2 K/W
case
Fig.7 Equivalent thermal resistance network;
single-ended application.
1999 Jun 30 7
Page 8
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
TDA8561Q
car radio power amplifier
DC CHARACTERISTICS
V
= 14.4 V; T
P
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Supply
V
P
I
P
V
O
DC output offset voltage −−150 mV
∆V
O
Mode select switch
V
on
MUTE CONDITION
V
mute
V
O
∆V
DC output offset voltage (between
O
STANDBY CONDITION
V
sb
I
sb
I
sw
Diagnostic output (pin 16)
V
DIAG
=25°C; measured in Fig.8; unless otherwise specified.
amb
positive supply voltage note 1 6 14.4 18 V
total quiescent current − 80 160 mA
DC output voltage note 2 − 6.9 − V
switch-on voltage level 8.5 −−V
mute voltage 3.3 − 6.4 V
output voltage in mute position V
= 1 V; f = 1 kHz −−2mV
Imax
−−150 mV
pins 6 to 8 and 10 to 12)
standby voltage 0 − 2V
standby current −−100 µA
switch-on current − 12 40 µA
diagnostic output voltage any short-circuit or clipping −−0.6 V
Notes
1. The circuit is DC adjusted at V
= 6 to 18 V and AC operating at VP= 8.5 to 18 V.
P
2. At 18V<VP< 30 V the DC output voltage ≤0.5VP.
1999 Jun 30 8
Page 9
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
TDA8561Q
car radio power amplifier
AC CHARACTERISTICS
V
= 14.4 V; RL=4Ω; f = 1 kHz; T
P
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Stereo BTL application (measured in Fig.8)
P
o
output power note 1
THD total harmonic distortion P
P
o
output power VP= 13.2 V
B power bandwidth THD = 0.5%; − 20 to − Hz
f
l
f
h
G
v
low frequency roll-off at −1 dB; note 2 − 45 − Hz
high frequency roll-off at −1dB 20 −−kHz
closed loop voltage gain 25 26 27 dB
SVRR supply voltage ripple rejection note 3
on 48 −−dB
mute 46 −−dB
standby 80 −−dB
Z
input impedance 25 30 38 kΩ
I
V
no
noise output voltage
on R
on R
mute notes 4 and 5 − 60 −µV
α
cs
∆G
channel unbalance −−1dB
v
channel separation Rs=10kΩ 40 60 − dB
DYNAMIC DISTORTION DETECTOR
THD total harmonic distortion V16≤ 0.6 V; no short-circuit − 10 − %
=25°C; unless otherwise specified.
amb
THD = 0.5% 15 19 − W
THD = 10% 20 24 − W
=1W − 0.06 − %
o
THD = 0.5% − 16 − W
THD = 10% − 20 − W
P
= −1 dB; with respect to 15 W 15000
o
=0Ω; note 4 − 70 −µV
s
=10kΩ; note 4 − 100 200 µV
s
Quad single-ended application (measured in Fig.9)
P
o
output power note 1
THD = 0.5% 4 5 − W
THD = 10% 5.5 7 − W
THD total harmonic distortion P
P
O
output power RL=2Ω; note 1
=1W − 0.06 − %
o
THD = 0.5% 7.5 10 − W
THD = 10% 10 12 − W
f
l
f
h
G
v
low frequency roll-off at −1 dB; note 2 − 25 − Hz
high frequency roll-off at −1dB 20 −−kHz
closed loop voltage gain 19 20 21 dB
1999 Jun 30 9
Page 10
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
TDA8561Q
car radio power amplifier
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
SVRR supply voltage ripple rejection note 3
on 48 −−dB
mute 46 −−dB
standby 80 −−dB
Z
input impedance 50 60 75 kΩ
I
V
no
αcschannel separation Rs=10kΩ 40 60 − dB
∆G
channel unbalance −−1dB
v
DYNAMIC DISTORTION DETECTOR
THD total harmonic distortion V16≤ 0.6 V; no short-circuit − 10 − %
Notes
1. Output power is measured directly at the output pins of the IC.
2. Frequency response externally fixed.
3. Ripple rejection measured at the output with a source impedance of 0 Ω, maximum ripple amplitude of 2 V (p-p) and
at a frequency of between 100 Hz and 10 kHz.
4. Noise measured in a bandwidth of 20 Hz to 20 kHz.
5. Noise output voltage independent of Rs (Vi= 0 V).
noise output voltage
on R
on R
mute notes 4 and 5 − 50 −µV
=0Ω; note 4 − 50 −µV
s
=10kΩ; note 4 − 70 100 µV
s
1999 Jun 30 10
Page 11
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
TEST AND APPLICATION INFORMATION
handbook, full pagewidth
non- inverting
input 1
220 nF
mode
switch
1
diagnostic
14
TDA8561Q
TDA8564Q
60
kΩ
10
kΩ
16 5 13
TDA8561Q
V
P
100
nF
6
2200
µF
inverting input 2
ground (signal)
supply voltage
ripple rejection
non-inverting
input 4
inverting input 3
220 nF
12
10
MEA862 - 2
8
9
not connected
3
2
4
17
15
60
kΩ
60
kΩ
power ground (substrate)
reference
voltage
60
kΩ
711
Fig.8 Stereo BTL application diagram.
1999 Jun 30 11
Page 12
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
handbook, full pagewidth
non- inverting
input 1
220 nF
mode
switch
1
14
TDA8561Q
TDA8564Q
60
kΩ
10
kΩ
16 5 13
TDA8561Q
V
P
100
nF
6
2200
µF
1000 µF
inverting
input 2
ground (signal)
supply voltage
ripple rejection
non-inverting
input 4
inverting
input 3
220 nF
220 nF
220 nF
100
µF
3
2
4
1/2V
17
15
8
1000 µF
60
kΩ
p
60
kΩ
power ground (substrate)
reference
voltage
60
kΩ
711
9
12
10
MEA863 - 2
not connected
1000 µF
1000 µF
Fig.9 Quad single-ended application diagram 1.
1999 Jun 30 12
Page 13
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
handbook, full pagewidth
non- inverting
input 1
inverting
input 2
ground (signal)
not connected
non-inverting
input 4
220 nF
220 nF
220 nF
mode
switch
1
3
2
9
17
14
TDA8561Q
TDA8564Q
60
kΩ
60
kΩ
10
kΩ
16 5 13
reference
voltage
60
kΩ
TDA8561Q
V
P
P
100
µF
2200
µF
D1
100
nF
6
8
V
2
4
12
60
kΩ
inverting
input 3
(1) When short-circuiting the single-ended capacitor, the dissipation will be reduced due to diode D1.
220 nF
15
711
power ground (substrate)
10
MEA864 - 2
Fig.10 Quad single-ended application diagram 2.
2200
µF
1999 Jun 30 13
Page 14
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
Mode select switch
To avoid switch-on plops, it is advised to keep the amplifier
in the mute mode during >100 ms (charging of the input
capacitors at pins 1, 3, 15 and 17.
The circuit in Fig.11 slowly ramps up the voltage at the
mode select switch pin when switching on and results in
fast muting when switching off.
handbook, halfpage
V
P
10 kΩ 100 Ω
47 µF
TDA8561Q
mode
select
switch
100 kΩ
MGA708
2
10
THD
(%)
10
1
1
10
2
10
2
10
(1) f = 10 kHz.
(2) f = 1 kHz.
(3) f = 100 Hz.
Fig.11 Mode select switch circuitry.
MGA709
(1)
(2)
(3)
1
10110
P (W)
o
2
10
Fig.12 Total harmonic distortion as a function of output power; VP= 14.4 V, RL=4Ω.
1999 Jun 30 14
Page 15
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
50
handbook, full pagewidth
P
o
(W)
40
30
20
10
0
810121416
(1) THD = 30%.
(2) THD = 10%.
(3) THD = 0.5%.
(1)
(2)
(3)
TDA8561Q
MGA710
V (V)
P
18
P
(W)
Fig.13 Output power as a function of supply voltage.
20
o
18
16
14
12
10
10
2
10
3
10
4
10
f (Hz)
MGA711
5
10
Fig.14 Power bandwidth as a function of frequency; THD = 0.5%, VP= 14.4 V, RL=4Ω.
1999 Jun 30 15
Page 16
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
1
THD
(%)
1
10
2
10
10
(1) Po= 0.1 W.
(2) Po=1W.
(3) Po=10W.
2
10
10
TDA8561Q
MGA712
(1)
(2)
(3)
3
4
10
f (Hz)
5
10
Fig.15 Total harmonic distortion as a function of frequency; VP= 14.4 V, RL=4Ω.
50
RR
(dB)
60
70
80
90
100
10
(1) On condition.
(2) Mute condition.
(3) Standby condition.
MGA713
(1)
(2)
(3)
2
10
3
10
4
10
f (Hz)
5
10
Fig.16 Ripple rejection as a function of frequency.
1999 Jun 30 16
Page 17
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
100
handbook, full pagewidth
I
q
(mA)
92
84
76
68
60
8 10121416
TDA8561Q
MGA714
V (V)
P
18
Fig.17 Quiescent current as a function of supply voltage; RL= ∞.
SINGLE-ENDED APPLICATION
2
10
THD
(%)
10
1
1
10
2
10
2
10
MGA715
(1)
(2)
(3)
1
10110
P (W)
o
2
10
(1) f = 10 kHz. (2) f = 1 kHz. (3) f = 100 Hz.
Fig.18 Total harmonic distortion as a function of output power; VP= 14.4 V, RL=2Ω.
1999 Jun 30 17
Page 18
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
15
handbook, full pagewidth
P
o
(W)
12
9
6
3
0
8 10121416
(1) THD = 30%.
(2) THD = 10%.
(3) THD = 0.5%.
(2)
(1)
(3)
TDA8561Q
MGA716
V (V)
P
18
P
(W)
Fig.19 Output power as a function of supply voltage.
10
o
8
6
4
2
0
10
2
10
3
10
4
10
f (Hz)
MGA717
5
10
Fig.20 Power bandwidth as a function of frequency; THD = 0.5%, VP= 14.4 V, RL=2Ω.
1999 Jun 30 18
Page 19
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
1
THD
(%)
1
10
2
10
10
2
10
10
TDA8561Q
MGA718
(1)
(2)
3
4
10
f (Hz)
5
10
(1) Po= 0.1 W.
(2) Po=1W.
30
handbook, full pagewidth
α
cs
(dB)
40
50
60
70
Fig.21 Total harmonic distortion as a function of frequency; VP= 14.4 V, RL=2Ω.
MGA719
80
10
2
10
10
Fig.22 Channel separation as a function of frequency.
1999 Jun 30 19
3
4
10
f (Hz)
5
10
Page 20
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
BTL APPLICATION
14
P
tot
(W)
12
10
8
6
4
TDA8561Q
MGA720
2
04
8 1216202428
P (W)
o
Fig.23 Total power dissipation as a function of output power; VP= 14.4 V, RL=4Ω(1 channel driven BTL or
4 channels in single-ended mode).
1999 Jun 30 20
Page 21
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
PACKAGE OUTLINE
DBS17P: plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)
non-concave
D
d
x
E
h
D
h
view B: mounting base side
A
2
TDA8561Q
SOT243-1
117
e
0.48
0.38
1
e
(1)
deD
24.0
20.0
23.6
19.6
Z
DIMENSIONS (mm are the original dimensions)
UNIT A e
mm
A2bpcD
17.0
4.6
4.2
0.75
0.60
15.5
w M
b
p
(1)
E
h
12.2
10 2.54
11.8
0 5 10 mm
B
j
L
3
1.27
scale
1
e
5.08
L
E
2
h
6
Q
LL3m
3.4
12.4
3.1
11.0
2.4
1.6
e
4.3
m
E
A
c
2
Qj
2.1
1.8
v M
v
0.8
x
0.4w0.03
(1)
Z
2.00
1.45
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
SOT243-1
IEC JEDEC EIAJ
REFERENCES
1999 Jun 30 21
EUROPEAN
PROJECTION
ISSUE DATE
95-03-11
97-12-16
Page 22
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
SOLDERING
Introduction to soldering through-hole mount
packages
This text gives a brief insight to wave, dip and manual
soldering. A more in-depth account of soldering ICs can be
found in our
Packages”
Wave soldering is the preferred method for mounting of
through-hole mount IC packages on a printed-circuit
board.
Soldering by dipping or by solder wave
The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
with the joints for more than 5 seconds.
Suitability of through-hole mount IC packages for dipping and wave soldering methods
DBS, DIP, HDIP, SDIP, SIL suitable suitable
“Data Handbook IC26; Integrated Circuit
(document order number 9398 652 90011).
PACKAGE
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
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.
Manual soldering
Apply the soldering iron (24 V or less) to the lead(s) of the
package, either 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.
SOLDERING METHOD
DIPPING WAVE
(1)
TDA8561Q
). If the
stg(max)
Note
1. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board.
DEFINITIONS
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.
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.
1999 Jun 30 22
Page 23
Philips Semiconductors Product specification
2 × 24 W BTL or 4 × 12 W single-ended
car radio power amplifier
NOTES
TDA8561Q
1999 Jun 30 23
Page 24
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© Philips Electronics N.V. SCA
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
1999 66
Internet: http://www.semiconductors.philips.com
Printed in The Netherlands 545002/04/pp24 Date of release: 1999 Jun 30 Document order number: 9397 750 06053
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