Datasheet TDA8564Q Datasheet (Philips)

Philips Semiconductors Preliminary 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

• Electrostatic discharge protection

• No switch-on/switch-off plop

• Flexible leads

• Low thermal resistance

• Identical inputs (inverting and non-inverting).

TDA8564Q

• Fixed gain

• Diagnostic facility (distortion, short-circuit and

temperature detection)

• Good ripple rejection

• Mode select switch (operating, mute and standby)

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.

• 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

APPLICATIONS

• The device is primarily developed for car radio
applications.

• Reverse polarity safe

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V
I

ORM

I

q(tot)

I

stb

P

operating supply voltage 6.0 14.4 18.0 V
repetitive peak output current − − 4 A
total quiescent current − 80 − mA
standby current − 0.1 100 µA

Stereo BTL application

P

o

output power RL= 4 Ω; THD = 10% − 24 − W
SVRR supply voltage ripple rejection − 41 − dB
V

no

noise output voltage Rs= 0 Ω − 200 − µV

|ZI| input impedance 25 − − kΩ
|∆VO| DC output offset voltage − − 250 mV

Quad single-ended application

P

o

output power RL= 4 Ω; THD = 10% − 6.4 − W

RL= 2 Ω; THD = 10% − 12 − W
SVRR supply voltage ripple rejection − 41 − dB
V

no

noise output voltage Rs= 0 Ω − 200 − µV

|ZI| input impedance 50 − − kΩ

ORDERING INFORMATION

TYPE NUMBER

NAME DESCRIPTION VERSION

PACKAGE

TDA8564Q DBS17P plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm) SOT243-1

February 1995 2

Philips Semiconductors Preliminary specification

Fig.1 Block diagram.

handbook, full pagewidth

mode
select

switch

MLC809

output 1

15 kΩ

15 kΩ

x1

VA

stand-by

switch

V

P

mute
switch

standby
reference
voltage

5

13

V

P1VP2

18 kΩ

180

Ω

180

Ω

180

Ω

180

Ω

mute switch

VA

C

m

power stage

18 kΩ

mute switch

VA

C

m

power stage

6

8

14

18 kΩ

mute switch

VA

C

m

power stage

18 kΩ

mute switch

VA

C

m

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
kΩ

60
kΩ

inverting

input 2

3

PROTECTIONS

thermal

short-circuit

diagnostic

output

16

4

supply voltage
ripple rejection

inverting

input 3

15

60
kΩ

60
kΩ

9

not connected

BLOCK DIAGRAM

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

February 1995 3

Philips Semiconductors Preliminary specification

Fig.2 Pin configuration.

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

Fig.3 Mode select switch circuitry.

handbook, halfpage

100 kΩ

MGA708

47 µF

10 kΩ 10 kΩ

mode select switch

V

P

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

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

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

MODE 14 mode select switch input
INV3 15 inverting input 3
V

DIAG

−INV4 17 non-inverting input 4

5 supply voltage 1

13 supply voltage 2

16 diagnostic output

TDA8564Q

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 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.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 the1⁄2VP decoupling capacitor (pin 4)

to 150 µF to avoid switch plops.

February 1995 4

Philips Semiconductors Preliminary specification

Fig.4 Distortion detector waveform; BTL application.

handbook, halfpage

V

0

V

P

V

O

0

t

MGA705

16

Fig.5 Distortion detector waveform; single-ended

application.

handbook, halfpage

0

V

P

V

O

t

0

MGA706

V

16

Fig.6 Short-circuit waveform.

handbook, full pagewidth

MGA707

short-circuit over the load

20 ms

50 µs

t

t

V

P

current

in

output

stage

V

16

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

Diagnostic output (pin 16)

DYNAMIC 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

TDA8564Q

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).

During this short-circuit condition, pin 16 is LOW for 20 ms
and HIGH for 50 µs (see Fig.6).

The power dissipation in any short-circuit condition is
very low.

EMPERATURE DETECTION

T
When the virtual junction temperature Tvj 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.

February 1995 5

Philips Semiconductors Preliminary specification

Fig.7 Equivalent thermal resistance network;

BTL application.

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

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

V
V
I

OSM

I

ORM

P
T
T
T

psc
pr

tot
stg
amb
vj

load dump protection during 50 ms; t
AC and DC short-circuit safe voltage − 18 V
reverse polarity − 6 V
non-repetitive peak output current − 6 A
repetitive peak output current − 4 A
total power dissipation − 60 W
storage temperature −55 +150 °C
operating ambient temperature −40 +85 °C
virtual junction temperature − 150 °C

≥ 2.5 ms − 45 V

r

THERMAL CHARACTERISTICS

SYMBOL PARAMETER VALUE UNIT

R

th j-a

R

th j-c

thermal resistance from junction to ambient in free air 40 K/W
thermal resistance from junction to case (see Figs 7 and 8) 1.3 K/W

February 1995 6

Philips Semiconductors Preliminary specification

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

DC CHARACTERISTICS

VP= 14.4 V; T

= 25 °C; measured in Fig.17; unless otherwise specified.

amb

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

I

q

V

O

supply voltage note 1 6.0 14.4 18.0 V
quiescent current see Fig.9 − 80 160 mA
DC output voltage note 2 − 6.9 − V

|∆VO| DC output offset voltage − − 250 mV

Mute select switch

V

14

switch-on voltage level 8.5 − − V
MUTE CONDITION
V

V

mute
O

mute voltage 3.3 − 6.4 V

output signal in mute position V

= 1 V; f = 1 kHz − − 20 mV

I(max)

|∆VO| DC output offset voltage − − 250 mV
STANDBY CONDITION
V

stb

I

stb

I

sw

DC voltage in standby condition 0 − 2 V

DC current in standby condition − − 100 µA

switch-on current − 12 40 µA

Diagnostic output (pin 16)

V

DIAG

diagnostic output voltage any short-circuit or clipping − − 0.6 V

Notes

1. The circuit is DC adjusted at VP= 6 to 18 V and AC operating at VP= 8.5 to 18 V.

2. At 18 V < VP< 30 V the DC output voltage ≤1⁄2VP.

February 1995 7

Philips Semiconductors Preliminary specification

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

AC CHARACTERISTICS

VP= 14.4 V; RL= 4 Ω; f = 1 kHz; T

= 25 °C; unless otherwise specified.

amb

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 VP= 13.2 V; THD = 0.5%; note 1 − 16 − W

VP= 13.2 V; THD = 10%; note 1 − 20 − W
THD total harmonic distortion Po = 1 W − 0.1 − %
f

lr

f

hr

G

v

low frequency roll-off at −1 dB; note 2 − 45 − Hz
high frequency roll-off at −1 dB 20 − − kHz
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
|Zi| input impedance 25 30 38 kΩ
V

no

noise output voltage

on Rs= 0 Ω; note 4 − 200 − µV

on Rs= 10 kΩ; note 4 − 350 700 µV

mute notes 4 and 5 − 180 − µV

α

cs

|∆Gv|
D

YNAMIC DISTORTION DETECTOR

channel separation Rs= 10 kΩ 40 − − dB
channel unbalance − − 1 dB

THD total harmonic distortion V16≤ 0.6 V; no short-circuit − 10 − %

February 1995 8

Philips Semiconductors Preliminary specification

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

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 RL= 2 Ω; THD = 0.5%; note 1 7.5 8.5 − W

RL= 2 Ω; THD = 10%; note 1 10 12 − W
THD total harmonic distortion Po = 1 W − 0.15 − %
f

lr

f

hr

G

v

low frequency roll-off at −3 dB; note 2 − 45 − Hz
high frequency roll-off at −1 dB 20 − − kHz
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
|Zi| input impedance 50 60 75 kΩ
V

no

noise output voltage

on Rs= 0 Ω; note 4 − 200 300 µV

on Rs= 10 kΩ; note 4 − 250 − µV

mute notes 4 and 5 − 175 − µV

α
|∆G

cs

|

v

channel separation Rs= 10 kΩ 40 52 − dB
channel unbalance − − 1 dB

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).

4. Noise voltage measured in a bandwidth of 20 Hz to 20 kHz.

5. Noise output voltage independent of Rs(VI= 0 V).

February 1995 9

Philips Semiconductors Preliminary specification

Fig.9 Quiescent current as a function of supply voltage; RL= ∞.

handbook, full pagewidth

18

100

60

8 10 12 14 16

MGA714

68

76

84

92

V (V)

P

I

q

(mA)

(1) f = 1 kHz.

Fig.10 Total harmonic distortion as a function of output power; VP= 14.4 V; RL= 4 Ω (BTL).

handbook, full pagewidth

10

2

MLC811

10110

1

10

1

10

P (W)

o

1

10

2

THD

(%)

(1)

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

February 1995 10

Philips Semiconductors Preliminary specification

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

P

o

(W)

V (V)

P

(1)

(3)

(2)

Fig.12 Total harmonic distortion as a function of output power; VP= 14.4 V; RL= 4 Ω (single-ended).

(1) f = 1 kHz.

handbook, full pagewidth

10

2

MLC812

10110

1

10

1

10

P (W)

o

1

10

2

THD

(%)

(1)

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

February 1995 11

Philips Semiconductors Preliminary specification

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

P

o

(W)

V (V)

P

(2)

(3)

(1)

(1) Po= 1 W.

Fig.14 Total harmonic distortion as a function of frequency; VP= 14.4 V; RL= 4 Ω (single-ended).

handbook, full pagewidth

10

5

MLC813

10

4

10

3

10

2

10

1

10

2

f (Hz)

10

1

THD

(%)

(1)

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

February 1995 12

Philips Semiconductors Preliminary specification

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)

α

cs

(1) On condition.

Fig.16 Ripple rejection as a function of frequency; VP= 14.4 V; V

ripple

= 2 V (p-p); Rs= 0 Ω (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)

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

February 1995 13

Philips Semiconductors Preliminary specification

Fig.17 Stereo BTL application circuit diagram.

handbook, full pagewidth

MGC046

100

nF

16 5 13

220 nF

1

6

8

7 11

V

P

TDA8564Q

2200

µF

60
kΩ

2

ground (signal)

10
kΩ

14

9

not connected

3

inverting input 2

60
kΩ

60

kΩ

reference

voltage

220 nF

17

12

60
kΩ

non-inverting

input 4

4

15

10

power ground (substrate)

non- inverting

input 1

supply voltage
ripple rejection

inverting input 3

diagnostic

mode

switch

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TEST AND APPLICATION INFORMATION

TDA8564Q

February 1995 14

Philips Semiconductors Preliminary specification

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

V

P

TDA8564Q

2200

µF

60
kΩ

2

ground (signal)

10
kΩ

14

9

not connected

3

inverting

input 2

60
kΩ

60
kΩ

reference

voltage

220 nF

17

12

60
kΩ

non-inverting

input 4

4

15

10

power ground (substrate)

non- inverting

input 1

supply voltage
ripple rejection

inverting

input 3

220 nF

1/2V

p

1000 µF

220 nF

1000 µF

1000 µF

1000 µF

mode

switch

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

February 1995 15

Philips Semiconductors Preliminary specification

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

V

P

SVRR

TDA8564Q

2200

µF

60

kΩ

2

ground (signal)

10
kΩ

14

4

not connected

3

inverting

input 2

60
kΩ

60
kΩ

reference

voltage

220 nF

17

12

60
kΩ

non-inverting

input 4

9

15

10

power ground (substrate)

non- inverting

input 1

inverting

input 3

220 nF

220 nF

2200

µF

D1

100

µF

mode
switch

(1)

2 × 24 W BTL or 4 × 12 W single-ended car
radio power amplifier

TDA8564Q

February 1995 16