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TDA7564
September 2003
s
DMOS POWER OUTPUT
s
NON-SWITCHING HI-EFFICIENCY
s
HIGH OUTPUT POWER CAPABILITY 4x28W/4
@ 14.4V, 1KHZ, 10% THD, 4x40W EIAJ
s
MAX. OUTPUT POWER 4x72W/2
s
FULL I
2
C BUS DRIVING:
ST-BY
INDEPENDENT FRONT/REAR SOFT PLAY/
MUTE
SELECTABLE GAIN 26dB - 12dB (FOR
LOW NOISE LINE OUTPUT FUNCTION)
HIGH EFFICIENCY ENABLE/DISABLE
I
2
C BUS DIGITAL DIAGNOSTICS
s
FULL FAULT PROTECTION
s
DC OFFSET DETECTION
s
FOUR INDEPENDENT SHORT CIRCUIT
PROTECTION
s
CLIPPING DETECTOR (2% - 10%)
PROTECTION
DESCRIPTION
The TDA7564 is a new BCD technology QUAD
BRIDGE type of car radio amplifier in Flexiwatt25
package specially intended for car radio applica-
tions. Thanks to the DMOS output stage the
TDA7564 has a very low distortion allowing a clear
powerful sound. Among the features, its superior
efficiency performance coming from the internal
exclusive structure, makes it the most suitable de-
vice to simplify the thermal management in high
power sets.The dissipated output power under av-
erage listening condition is in fact reduced up to
50% when compared to the level provided by con-
ventional class AB solutions.This device is
equipped with a full diagnostics array that commu-
nicates the status of each speaker through the I
2
C
bus.The possibility to control the configuration and
behaviour of the device by means of the I
2
C bus
makes TDA7564 a very flexible machine.
ORDERING NUMBER: TDA7564
FLEXIWATT25
MULTIFUNCTION QUAD POWER AMPLIFIER
WITH BUILT-IN DIAGNOSTICS FEATURES
BLOCK DIAGRAM
I2CBUS
THERMAL
PROTECTION
& DUMP
REFERENCE
CD_OUT
DATA
CLK
OUT RF+
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
CLIP
DETECTOR
MUTE1
MUTE2
12/26dB
VCC2
VCC1
12/26dB
12/26dB
12/26dB
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
SHORT CIRCUIT
PROTECTION &
DIAGNOSTIC
OUT RF-
OUT RR+
OUT RR-
OUT LF+
OUT LF-
OUT LR+
OUT LR-
AC_GND
RF
RR
LF
PW_GND
LR
IN LR
S_GND
TAB
SVR
IN LF
IN RR
IN RF
D00AU1211
MULTIPOWER BCD TECHNOLOGY
MOSFET OUTPUT POWER STAGE
TDA7564
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ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
PIN CONNECTION (Top view)
Symbol
Parameter
Value
Unit
V
op
Operating Supply Voltage
18
V
V
S
DC Supply Voltage
28
V
V
peak
Peak Supply Voltage (for t = 50ms)
50
V
V
CK
CK pin Voltage
6
V
V
DATA
Data Pin Voltage
6
V
I
O
Output Peak Current (not repetitive t = 100ms)
8
A
I
O
Output Peak Current (repetitive f > 10Hz)
6
A
P
tot
Power Dissipation T
case
= 70C
85
W
T
stg
, T
j
Storage and Junction Temperature
-55 to 150
C
Symbol
Parameter
Value
Unit
R
th j-case
Thermal Resistance Junction to case
Max.
1
C/W
D99AU1037
TAB
PW_GND LR
OUT LR-
CD-OUT
OUT LR+
V
CC1
OUT LF-
PW_GND LF
OUT LF+
SVR
IN LF
IN LR
S GND
IN RR
IN RF
AC GND
OUT RF+
PW_GND RF
OUT RF-
V
CC2
OUT RR+
CK
OUT RR-
PW_GND RR
DATA
1
25
2
3
4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22
23
24
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TDA7564
Figure 1. Application Circuit
IN RF
C1 0.22
F
IN RR
C2 0.22
F
OUT RF
OUT RR
IN LF
C3 0.22
F
IN LR
C4 0.22
F
OUT LF
OUT LR
D00AU1212
C5
1
F
C6
10
F
TAB
47K
-
+
-
+
-
+
-
+
Vcc1
Vcc2
C8
0.1
F
C7
3300
F
DATA
I2C BUS
CLK
12
11
14
15
22
25
13
S-GND
16
10
4
CD OUT
V
6
20
17
18
19
21
24
23
9
8
7
5
2
3
1
TDA7564
4/20
ELECTRICAL CHARACTERISTICS
(Refer to the test circuit, V
S
= 14.4V; R
L
= 4
; f = 1KHz; T
amb
= 25C; unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
POWER AMPLIFIER
V
S
Supply Voltage Range
8
18
V
I
d
Total Quiescent Drain Current
170
300
mA
P
O
Output Power
EIAJ (V
S
= 13.7V)
35
40
W
THD = 10%
THD = 1%
25
28
22
W
W
R
L
= 2
; EIAJ (V
S
= 13.7V)
R
L
= 2
; THD 10%
R
L
= 2
; THD 1%
R
L
= 2
; MAX POWER
55
40
62
46
35
72
W
W
W
W
THD
Total Harmonic Distortion
P
O
= 1W to 10W; STD MODE
HE MODE; P
O
= 1.5W
HE MODE; P
O
= 8W
0.02
0.015
0.15
0.1
0.1
0.5
%
%
%
G
V
= 12dB; STD Mode
V
O
= 0.1 to 5VRMS
0.02
0.05
%
C
T
Cross Talk
f = 1KHz to 10KHz, R
g
= 600
50
60
dB
R
IN
Input Impedance
60
100
130
K
G
V1
Voltage Gain 1
25
26
27
dB
G
V1
Voltage Gain Match 1
-1
1
dB
G
V2
Voltage Gain 2
11
12
13
dB
G
V2
Voltage Gain Match 2
-1
1
dB
E
IN1
Output Noise Voltage 1
R
g
= 600
, 20Hz to 22kHz
35
100
V
E
IN2
Output Noise Voltage 2
R
g
= 600
; GV = 12dB
20Hz to 22kHz
12
30
V
SVR
Supply Voltage Rejection
f = 100Hz to 10kHz; V
r
= 1Vpk;
R
g
= 600
50
60
dB
BW
Power Bandwidth
100
KHz
A
SB
Stand-by Attenuation
90
110
dB
I
SB
Stand-by Current Consumption
25
100
A
A
M
Mute Attenuation
80
100
dB
V
OS
Offset Voltage
Mute & Play
-100
0
100
mV
T
ON
Turn ON Delay
D2/D1 (IB1) 0 to 1
20
40
ms
T
OFF
Turn OFF Delay
D2/D1 (IB1) 1 to 0
20
40
ms
V
AM
Min. Supply Mute Threshold
7
7.5
8
V
CD
LK
Clip Det High Leakage Current
CD off
0
15
A
CD
SAT
Clip Det Sat. Voltage
CD on; I
CD
= 1mA
150
300
mV
CD
THD
Clip Det THD level
D0 (IB1) = 0
1
2
3
%
D0 (IB1) = 1
5
10
15
%
TURN ON DIAGNOSTICS 1 (Power Amplifier Mode)
Pgnd
Short to GND det. (below this
limit, the Output is considered in
Short Circuit to GND)
Power Amplifier in st-by
1.2
V
Pvs
Short to Vs det. (above this limit,
the Output is considered in Short
Circuit to Vs)
Vs -1.2
V
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TDA7564
Pnop
Normal operation thresholds.
(Within these limits, the Output is
considered without faults).
Power Amplifier in st-by
1.8
Vs -1.8
V
Lsc
Shorted Load det.
0.5
Lop
Open Load det.
85
Lnop
Normal Load det.
1.75
45
TURN ON DIAGNOSTICS 2 (Line Driver Mode)
Pgnd
Short to GND det. (below this
limit, the Output is considered in
Short Circuit to GND)
Power Amplifier in st-by
1.2
V
Pvs
Short to Vs det. (above this limit,
the Output is considered in Short
Circuit to V
S
)
Vs -1.2
V
Pnop
Normal operation thresholds.
(Within these limits, the Output is
considered without faults).
1.8
Vs -1.8
V
Lsc
Shorted Load det.
2
Lop
Open Load det.
330
Lnop
Normal Load det.
7
180
PERMANENT DIAGNOSTICS 2 (Power Amplifier Mode or Line Driver Mode)
Pgnd
Short to GND det. (below this
limit, the Output is considered in
Short Circuit to GND)
Power Amplifier in Mute or Play,
one or more short circuits
protection activated
1.2
V
Pvs
Short to Vs det. (above this limit,
the Output is considered in Short
Circuit to V
S
)
Vs -1.2
V
Pnop
Normal operation thresholds.
(Within these limits, the Output is
considered without faults).
1.8
Vs -1.8
V
L
SC
Shorted Load Det.
Pow. Amp. mode
0.5
Line Driver mode
2
V
O
Offset Detection
Power Amplifier in play,
AC Input signals = 0
1.5
2
2.5
V
I
NL
Normal load current detection
V
O
< (V
S
- 5)pk
500
mA
I
OL
Open load current detection
V
O
< (V
S
- 5)pk
250
mA
I
2
C BUS INTERFACE
f
SCL
Clock Frequency
400
KHz
V
IL
Input Low Voltage
1.5
V
V
IH
Input High Voltage
2.3
V
ELECTRICAL CHARACTERISTICS (continued)
(Refer to the test circuit, V
S
= 14.4V; R
L
= 4
; f = 1KHz; T
amb
= 25C; unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
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