Document Outline
- FEATURES
- GENERAL DESCRIPTION
- APPLICATIONS
- QUICK REFERENCE DATA
- ORDERING INFORMATION
- BLOCK DIAGRAM
- PINNING
- FUNCTIONAL DESCRIPTION
- Mode select switch
- Diagnostic output
- LIMITING VALUES
- THERMAL CHARACTERISTICS
- DC CHARACTERISTICS
- AC CHARACTERISTICS
- TEST AND APPLICATION INFORMATION
February 1995
2
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended
car radio power amplifier
TDA8564Q
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
P
Low power dissipation in any short-circuit condition
Thermally protected
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 TDA8564Q is an integrated class-B output amplifier in
a 17-lead DIL-bent-SIL power package. It contains
4
12 W single-ended or 2
24 W bridge amplifiers.
APPLICATIONS
The device is primarily developed for car radio
applications.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
operating supply voltage
6.0
14.4
18.0
V
I
ORM
repetitive peak output current
-
-
4
A
I
q(tot)
total quiescent current
-
80
-
mA
I
stb
standby current
-
0.1
100
A
Stereo BTL application
P
o
output power
R
L
= 4
; THD = 10%
-
24
-
W
SVRR
supply voltage ripple rejection
-
41
-
dB
V
no
noise output voltage
R
s
= 0
-
200
-
V
|
Z
I
|
input impedance
25
-
-
k
|
V
O
|
DC output offset voltage
-
-
250
mV
Quad single-ended application
P
o
output power
R
L
= 4
; THD = 10%
-
6.4
-
W
R
L
= 2
; THD = 10%
-
12
-
W
SVRR
supply voltage ripple rejection
-
41
-
dB
V
no
noise output voltage
R
s
= 0
-
200
-
V
|
Z
I
|
input impedance
50
-
-
k
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8564Q
DBS17P
plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)
SOT243-1
February 1995
3
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
mode
select
switch
MLC809
output 1
15 k
15 k
x1
VA
stand-by
switch
VP
mute
switch
standby
reference
voltage
5
13
VP1
VP2
18 k
180
180
180
180
mute switch
VA
Cm
power stage
18 k
mute switch
VA
Cm
power stage
6
8
14
18 k
mute switch
VA
Cm
power stage
18 k
mute switch
VA
Cm
power stage
12
10
2
7
11
ground
(signal)
GND1
GND2
power ground (substrate)
output 4
output 3
output 2
non-inverting
input 1
non-inverting
input 4
17
1
TDA8564Q
mute
reference
voltage
input
reference
voltage
60
k
60
k
inverting
input 2
3
PROTECTIONS
thermal
short-circuit
diagnostic
output
16
4
supply voltage
ripple rejection
inverting
input 3
15
60
k
60
k
9
not connected
February 1995
4
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
PINNING
SYMBOL
PIN
DESCRIPTION
-
INV1
1
non-inverting input 1
SGND
2
signal ground
INV2
3
inverting input 2
SVRR
4
supply voltage ripple rejection
V
P1
5
supply voltage 1
OUT1
6
output 1
GND1
7
power ground 1
OUT2
8
output 2
n.c.
9
not connected
OUT3
10
output 3
GND2
11
power ground 2
OUT4
12
output 4
V
P2
13
supply voltage 2
MODE
14
mode select switch input
INV3
15
inverting input 3
V
DIAG
16
diagnostic output
-
INV4
17
non-inverting input 4
Fig.2 Pin configuration.
handbook, halfpage
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
TDA8564Q
INV1
SGND
INV2
SVRR
OUT1
GND1
OUT2
n.c.
OUT3
GND2
OUT4
V
MODE
INV3
DIAG
INV4
P2
V P1
MLC810
V
FUNCTIONAL DESCRIPTION
The TDA8564Q contains four identical amplifiers which
can be used for single-ended or bridge applications. The
gain of each amplifier is fixed at 40 dB (46 dB in BTL).
Special features of the device are as follows.
Mode select switch (pin 14)
Low standby current (<100
A)
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.3).
The circuit in Fig.3 slowly ramps up the voltage at the
mode select switch pin when switching on and results in
fast muting when switching off.
In the event of fast switching at mode select pin it is
advised to increase the
1
/
2
V
P
decoupling capacitor (pin 4)
to 150
F to avoid switch plops.
Fig.3 Mode select switch circuitry.
handbook, halfpage
100 k
MGA708
47
F
10 k
10 k
mode
select
switch
VP
February 1995
5
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
Diagnostic output (pin 16)
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 4 and 5).
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 more
channels occurs the output stages are switched off during
approximately 20 ms. After that time it is checked during
approximately 50
s to see whether the short-circuit is still
present. Due to this duty cycle of 50
s/20 ms the average
current consumption during this short-circuit condition is
very low (approximately 40 mA).
During this short-circuit condition, pin 16 is LOW for 20 ms
and HIGH for 50
s (see Fig.6).
The power dissipation in any short-circuit condition is
very low.
T
EMPERATURE DETECTION
When the virtual junction temperature T
vj
reaches 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.
Fig.4 Distortion detector waveform; BTL application.
handbook, halfpage
V
0
VP
VO
0
t
MGA705
16
Fig.5
Distortion detector waveform; single-ended
application.
handbook, halfpage
0
VP
VO
t
0
MGA706
V16
Fig.6 Short-circuit waveform.
handbook, full pagewidth
MGA707
short-circuit over the load
20 ms
50
s
t
t
VP
current
in
output
stage
V16
February 1995
6
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
P
supply voltage
operating
-
18
V
non-operating
-
30
V
load dump protection
during 50 ms; t
r
2.5 ms
-
45
V
V
psc
AC and DC short-circuit safe voltage
-
18
V
V
pr
reverse polarity
-
6
V
I
OSM
non-repetitive peak output current
-
6
A
I
ORM
repetitive peak output current
-
4
A
P
tot
total power dissipation
-
60
W
T
stg
storage temperature
-
55
+150
C
T
amb
operating ambient temperature
-
40
+85
C
T
vj
virtual junction temperature
-
150
C
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
VALUE
UNIT
R
th j-a
thermal resistance from junction to ambient in free air
40
K/W
R
th j-c
thermal resistance from junction to case (see Figs 7 and 8)
1.3
K/W
Fig.7
Equivalent thermal resistance network;
BTL application.
handbook, halfpage
2.2 K/W
0.2 K/W
2.2 K/W
virtual junction
output 1
output 2
case
MEA861 - 1
Fig.8
Equivalent thermal resistance network;
single-ended application.
handbook, halfpage
3.0 K/W
0.7 K/W
3.0 K/W
virtual junction
output 1
output 2
case
3.0 K/W
0.7 K/W
3.0 K/W
output 3
output 4
MEA860 - 2
0.2 K/W
February 1995
7
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
DC CHARACTERISTICS
V
P
= 14.4 V; T
amb
= 25
C; measured in Fig.17; unless otherwise specified.
Notes
1. The circuit is DC adjusted at V
P
= 6 to 18 V and AC operating at V
P
= 8.5 to 18 V.
2. At 18 V < V
P
< 30 V the DC output voltage
1
/
2
V
P
.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
P
supply voltage
note 1
6.0
14.4
18.0
V
I
q
quiescent current
see Fig.9
-
80
160
mA
V
O
DC output voltage
note 2
-
6.9
-
V
|
V
O
|
DC output offset voltage
-
-
250
mV
Mute select switch
V
14
switch-on voltage level
8.5
-
-
V
M
UTE CONDITION
V
mute
mute voltage
3.3
-
6.4
V
V
O
output signal in mute position
V
I(max)
= 1 V; f = 1 kHz
-
-
20
mV
|
V
O
|
DC output offset voltage
-
-
250
mV
S
TANDBY CONDITION
V
stb
DC voltage in standby condition
0
-
2
V
I
stb
DC current in standby condition
-
-
100
A
I
sw
switch-on current
-
12
40
A
Diagnostic output (pin 16)
V
DIAG
diagnostic output voltage
any short-circuit or clipping
-
-
0.6
V
February 1995
8
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
AC CHARACTERISTICS
V
P
= 14.4 V; R
L
= 4
; f = 1 kHz; T
amb
= 25
C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Stereo BTL application (measured in Fig.17)
P
o
output power
THD = 0.5%; note 1
15
19
-
W
THD = 10%; note 1
20
24
-
W
P
o
output power
V
P
= 13.2 V; THD = 0.5%; note 1
-
16
-
W
V
P
= 13.2 V; THD = 10%; note 1
-
20
-
W
THD
total harmonic distortion
P
o
= 1 W
-
0.1
-
%
f
lr
low frequency roll-off
at
-
1 dB; note 2
-
45
-
Hz
f
hr
high frequency roll-off
at
-
1 dB
20
-
-
kHz
G
v
closed loop voltage gain
45
46
47
dB
SVRR
supply voltage ripple rejection
on
note 3
38
41
-
dB
mute
note 3
42
48
-
dB
standby
note 3
80
-
-
dB
|
Z
i
|
input impedance
25
30
38
k
V
no
noise output voltage
on
R
s
= 0
; note 4
-
200
-
V
on
R
s
= 10 k
; note 4
-
350
700
V
mute
notes 4 and 5
-
180
-
V
cs
channel separation
R
s
= 10 k
40
-
-
dB
|
G
v
|
channel unbalance
-
-
1
dB
D
YNAMIC DISTORTION DETECTOR
THD
total harmonic distortion
V
16
0.6 V; no short-circuit
-
10
-
%
February 1995
9
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
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
, maximum ripple amplitude of 2 V (p-p).
4. Noise voltage measured in a bandwidth of 20 Hz to 20 kHz.
5. Noise output voltage independent of R
s
(V
I
= 0 V).
Quad single-ended application (measured in Fig.18)
P
o
output power
THD = 0.5%; note 1
4
5
-
W
THD = 10%; note 1
5.5
6.4
-
W
P
o
output power
R
L
= 2
; THD = 0.5%; note 1
7.5
8.5
-
W
R
L
= 2
; THD = 10%; note 1
10
12
-
W
THD
total harmonic distortion
P
o
= 1 W
-
0.15
-
%
f
lr
low frequency roll-off
at
-
3 dB; note 2
-
45
-
Hz
f
hr
high frequency roll-off
at
-
1 dB
20
-
-
kHz
G
v
closed loop voltage gain
39
40
41
dB
SVRR
supply voltage ripple rejection
on
note 3
38
41
-
dB
mute
note 3
42
48
-
dB
standby
note 3
80
90
-
dB
|
Z
i
|
input impedance
50
60
75
k
V
no
noise output voltage
on
R
s
= 0
; note 4
-
200
300
V
on
R
s
= 10 k
; note 4
-
250
-
V
mute
notes 4 and 5
-
175
-
V
cs
channel separation
R
s
= 10 k
40
52
-
dB
|
G
v
|
channel unbalance
-
-
1
dB
D
YNAMIC DISTORTION DETECTOR
THD
total harmonic distortion
V
16
0.6 V; no short-circuit
-
10
-
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
February 1995
10
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
Fig.9 Quiescent current as a function of supply voltage; R
L
=
.
handbook, full pagewidth
18
100
60
8
10
12
14
16
MGA714
68
76
84
92
V (V)
P
Iq
(mA)
(1) f = 1 kHz.
Fig.10 Total harmonic distortion as a function of output power; V
P
= 14.4 V; R
L
= 4
(BTL).
handbook, full pagewidth
10
2
MLC811
10
1
10
1
10
1
10
P (W)
o
1
10
2
THD
(%)
(1)
February 1995
11
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
Fig.11 Output power as a function of supply voltage (BTL).
(1) THD = 30%.
(2) THD = 10%.
(3) THD = 0.5%.
handbook, full pagewidth
18
50
0
8
10
12
14
16
MGA710
10
20
30
40
Po
(W)
V (V)
P
(1)
(3)
(2)
Fig.12 Total harmonic distortion as a function of output power; V
P
= 14.4 V; R
L
= 4
(single-ended).
(1) f = 1 kHz.
handbook, full pagewidth
10
2
MLC812
10
1
10
1
10
1
10
P (W)
o
1
10
2
THD
(%)
(1)
February 1995
12
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
Fig.13 Output power as a function of supply voltage (single-ended).
(1) THD = 30%.
(2) THD = 10%.
(3) THD = 0.5%.
handbook, full pagewidth
18
15
0
8
10
12
14
16
MGA716
3
6
9
12
Po
(W)
V (V)
P
(2)
(3)
(1)
(1) P
o
= 1 W.
Fig.14 Total harmonic distortion as a function of frequency; V
P
= 14.4 V; R
L
= 4
(single-ended).
handbook, full pagewidth
10
5
MLC813
10
4
10
3
10
2
10
1
10
2
f (Hz)
10
1
THD
(%)
(1)
February 1995
13
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
Fig.15 Channel separation as a function of frequency.
handbook, full pagewidth
80
30
10
5
MGA719
10
4
10
3
10
2
10
70
60
50
40
f (Hz)
(dB)
cs
(1) On condition.
Fig.16 Ripple rejection as a function of frequency; V
P
= 14.4 V; V
ripple
= 2 V (p-p); R
s
= 0
(single-ended).
handbook, full pagewidth
60
35
10
5
MLC814
10
4
10
3
10
2
10
55
50
45
40
f (Hz)
SVRR
(dB)
(1)
February 1995
14
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
TEST AND APPLICATION INFORMATION
Fig.17 Stereo BTL application circuit diagram.
handbook, full pagewidth
MGC046
100
nF
16
5
13
220 nF
1
6
8
7
11
VP
TDA8564Q
2200
F
60
k
2
ground (signal)
10
k
14
9
not connected
3
inverting input 2
60
k
60
k
reference
voltage
220 nF
17
12
60
k
non-inverting
input 4
4
15
10
power ground (substrate)
non- inverting
input 1
supply voltage
ripple rejection
inverting input 3
diagnostic
mode
switch
February 1995
15
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
Fig.18 Quad single-ended application circuit diagram 1.
handbook, full pagewidth
MGC047
100
nF
16
5
13
220 nF
1
6
8
7
11
VP
TDA8564Q
2200
F
60
k
2
ground (signal)
10
k
14
9
not connected
3
inverting
input 2
60
k
60
k
reference
voltage
220 nF
17
12
60
k
non-inverting
input 4
4
15
10
power ground (substrate)
non- inverting
input 1
supply voltage
ripple rejection
inverting
input 3
220 nF
1/2Vp
1000
F
220 nF
1000
F
1000
F
1000
F
mode
switch
February 1995
16
Philips Semiconductors
Preliminary specification
2
24 W BTL or 4
12 W single-ended car
radio power amplifier
TDA8564Q
Fig.19 Quad single-ended application circuit diagram 2.
(1) When short-circuiting the single-ended capacitor, the dissipation will be reduced due diode D1.
handbook, full pagewidth
MGC048
100
nF
16
5
13
220 nF
1
6
8
7
11
VP
SVRR
TDA8564Q
2200
F
60
k
2
ground (signal)
10
k
14
4
not connected
3
inverting
input 2
60
k
60
k
reference
voltage
220 nF
17
12
60
k
non-inverting
input 4
9
15
10
power ground (substrate)
non- inverting
input 1
inverting
input 3
220 nF
220 nF
2200
F
D1
100
F
mode
switch
(1)
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