Philips tda7264 DATASHEETS
TDA7264
®
25 + 25W STEREO AMPLIFIER WITH MUTE/ST-BY
WIDE SUPPLY VOLTAGE RANGE (UP TO
50V ABS MAX.)
SPLIT SU PPLY
HIGH OUTPUT POWER:
25 + 25W @ THD =10%, R
NO POP AT TURN-ON/ O FF
MUTE (POP FREE)
STAND-BY FEATURE (LOW IQ)
FEW EXTERNAL COMPONENTS
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
DESCRIPTION
The TDA7264/TDA7264A is class AB dual Audio
power amplifier assembled in the Multiwatt package, specially designed for high quality sound ap-
= 8Ω, VS = +20V
L
TDA7264A
Multiwatt 8 Multiwatt 11
ORDERING NUMBER: TDA7264 (Multiwatt 8)
TDA7264A (Multiwatt 11)
plication as Hi-Fi music centers and stereo TV
sets.
Figure 1:
+5V
Typical Application Circuit for TDA7264
15K 1µF
µP
1µF
1µF
MUTE/
ST-BY
IN (L)
18K15K
GND
IN (R)
D94AU069A
4
6
7
8
+
-
-
+
1000µF
+V
S
OUT (L)
4.7Ω
OUT (R)
4.7Ω
1000µF
RL (L)
100nF
RL (R)
100nF
+V
2
5
-V
S
3
1
S
April 1999
1/12
TDA7264 - TDA7264A
Figure 2:
+5V
Typical Application Circuit for TDA7264A
15K 1µF
µP
1µF
1µF
MUTE/
ST-BY
IN (L)
18K15K
GND
IN (R)
D98AU955
5
7
9
11
+
-
-
+
1
1000µF
+V
S
1000µF
3
OUT (L)
4
4.7Ω
RL (L)
100nF
OUT (R)
2
6
-V
S
4.7Ω
100nF
RL (R)
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
I
O
P
tot
T
stg
PIN CONNECTION
DC Supply Voltage 50 V
S
Output Peak Current (internally limited) 4.5 A
Power Dissipation T
= 70°C30W
case
, TjStorage and Junction Temperature -40 to +150 °C
(Top view)
Tab connected to pin 5
Multiwatt 8
8
7
6
5
4
3
2
1
D94AU096
IN (1)
GND
IN (2)
-V
S
MUTE/ST-BY
OUTPUT (2)
+V
S
OUTPUT (1)
TAB CONNECTED TO PIN 6
Multiwatt 11
11
10
9
8
7
6
5
4
3
2
1
D98AU956
IN(1)
NOT CONNECTED
GND
NOT CONNECTED
IN(2)
-V
S
STBY/MUTE
OUTPUT(2)
+V
S
OUTPUT(1)
-V
S
THERMAL DATA
Symbol Description Value Unit
Thermal Resistance Junction-case Max 2 °C/W
2/12
R
th j-case
TDA7264 - TDA7264A
ELECTRICAL CHARACTERISTICS
f = 1KHz; T
= 25°C, unless otherwise specified.)
amb
(Refer to the test circuit, V
+ 20V; RL = 8Ω; Rs =50Ω;
S
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
I
q
P
O
P
O
Supply Range +5 +22.5 V
Total Quiescent Current 80 130 mA
Music Output Power (*) THD = 10%; RL = 8Ω ;
V
+ 22.5V
S
32 W
Output Power THD = 10%
R
= 8Ω ;
L
V
+ 16V; RL = 4Ω
S
20 25
25
THD = 1%
THD Total Harmonic Distortion R
R
= 8Ω ;
L
V
+ 16V; RL = 4Ω
S
= 8Ω ; PO = 1W; f = 1KHz 0.02 %
L
RL = 8Ω ;
P
= 0.1 to 15W;
O
20
20
0.5 %
f = 100Hz to 15KHz
R
= 4Ω ; PO = 1W; f = 1KHz 0.03 %
L
= 4Ω ; VS + 16V;
R
L
P
= 0.1 to 12W;
O
1%
f = 100Hz to 15KHz
C
T
Cross Talk f = 1KHz
f = 10KHz
70
60
SR Slew Rate 10 V/µs
G
V
∆G
e
N
R
SVR Supply Voltage Rejection
Closed Loop Voltage Gain 29 30 31 dB
Voltage Gain Matching 0.2 dB
V
Total Input Noise A Curve
f = 20Hz to 22KHz
Input Resistance 15 20 KΩ
i
fr = 100Hz; Vripple = 0.5V
RMS
2.5
3.5 8
60 dB
(each channel)
T
Thermal Shut-down
j
145 °C
Junction Temperature
MUTE FUNCTION [ref: +V
VT
MUTE
A
M
Mute / Play Threshold -7 -6 -5 V
Mute Attenuation 60 90 dB
STAND-BY FUNCTION [ref: +V
VT
ST-BY
A
ST-BY
I
q ST-BY
Note :
(*) FULL POWER up to
MUSIC POWER
1 sec after the application of a sinusoidal input signal of frequency 1KHz .
Stand-by / Mute Threshold -3.5 -2.5 -1.5 V
Stand-by Attenuation 110 dB
Quiescent Current @ Stand-by 3 mA
is the maximal power which the amplifier is capable of producing across the rated load resistance (regardless of non linearity)
]
S
]
S
= ±22.5V with RL = 8Ω and VS = ±16V with RL = 4Ω
. V
S
W
W
W
W
dB
dB
µV
µV
3/12
TDA7264 - TDA7264A
Figure 3:
SW1
ST-BY
Demo Board Schematic TDA7264
R2
R1
DZ
15KC31µF
Q1
R4
15K
SW2
MUTE
C1 1µF
C2 1µF
MUTE/
ST-BY
IN (L)
R3
18K
GND
IN (R)
D94AU068B
+V
S
+V
S
4
6
7
8
+
-
+
C7
100nF
2
3
1
5
-V
S
C6
1000µF
C4
1000µF
OUT (L)
R5
4.7Ω
C8
100nF
OUT (R)
R6
4.7Ω
C9
100nF
C5
100nF
RL (L)
RL (R)
Figure 3a:
P.C. Board And Component Layout of the Demo Board Schematic TDA7264 (1:1 Scale)
4/12
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