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TDA7496L

P1-P3P4-P6P7-P9P10-P10
2W+2W OUTPUT POWER
R
L
= 8Ω @THD = 10% V
CC
= 14V
ST-BY AND MUTE FUNCTIONS
LOW TURN-ON TURN-OFF POP NOISE
LINEAR VOLUME CONTROL DC COUPLED
WITH POWER OP. AMP.
NO BOUCHEROT CELL
NO ST-BY RC INPUT NETWORK
SINGLE SUPPLY RANGING UP TO 15V
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
INTERNALLY FIXED GAIN
SOFT CLIPPING
VARIABLE OUTPUT AFTER VOLUME CON-
TROL CIRCUIT
POWERDIP (14+3+3) PACKAGE
DESCRIPTION
The TDA7496L is a stereo 2W+2W class AB
power amplifier assembled in the @ Powerdip
14+3+3 package, specially designed for high
quality sound, TV and Monitor applications.
Features of the TDA7496L include linear volume
control, Stand-by and mute functions.
September 2003
®
VOLUME
OP AMP
+
-
MUTE/STBY
PROTECTIONS
9
470nF
INR
30K
VOLUME
OP AMP
+
-30K
1000µF
1000µF
1µF
10K
4
470nF
INL
7
14
11
12
17
65
300K
100nF
VOLUME
VAROUT_L
OUTR
STBY
MUTE
OUTL
1,2,3,13,
18,19,20
GND
470µF
SVR 10
D97AU596A
V
S
VAROUT_R
15,16
+5V
S1 ST-BY
+5V
S2 MUTE
+5V
S_GND
60K
BLOCK DIAGRAM
Powerdip (14+3+3)
ORDERING NUMBER:
TDA7496L
TDA7496L
2W+2W AMPLIFIER WITH DC VOLUME CONTROL
1/10
Obsolete Product(s) - Obsolete Product(s)
GND
GND
GND
INL
VAROUT_L
VAROUT_R
VOLUME
N.C.
INR
1
3
2
4
5
6
7
8
9 MUTE
GND
OUTR
V
S
V
S
OUTL
GND
GND
GND20
19
18
17
16
14
15
13
12
D97AU597A
SVR 10 STBY11
PIN CONNECTION
THERMAL DATA
Symbol Parameter Value Unit
R
th j-pins
Thermal Resistance Junction-pins max. 15 °C/W
R
th j-amb
(*) Thermal Resistance Junction-ambient max. 50 °C/W
(*) Mounted on PCB with no heatsink
ELECTRICAL CHARACTERISTICS
(Refer to the test circuit V
S
= 14V; R
L
= 8
Ω
, R
g
= 50
Ω
, T
amb
= 25°C).
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
Supply Voltage Range 10 18 V
I
q
Total Quiescent Current 25 50 mA
DCV
OS
Output DC Offset Referred to
SVR Potenial
No Input Signal 200 mV
V
O
Quiescent Output Voltage 7 V
P
O
Output Power THD = 10%; R
L
= 8Ω; 1.6 2 W
THD = 1%; R
L
= 8Ω; 1.3 W
THD Total Harmonic Distortion G
V
= 30dB; P
O
= 1W; f = 1KHz; 0.4 %
I
peak
Output Peak Current (internally limited) 0.7 0.9 A
V
in
Input Signal 2.8 Vrms
G
V
Closed Loop Gain Vol Ctrl > 4.5V 28.5 30 31.5 dB
G
vLine
Monitor Out Gain Vol Ctrl > 4.5V; Zload > 30KΩ -1.5 0 1.5 dB
A
Min
V
OL
Attenuation at Minimum Volume Vol Ctrl < 0.5V 80 dB
BW 0.6 MHz
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
S
DC Supply Voltage 26 V
V
IN
Maximum Input Voltage 8 Vpp
P
tot
Total Power Dissipation (T
case
= 60°C) 6 W
T
amb
Ambient Operating Temperature 0 to 70 °C
T
stg
, T
j
Storage and Junction Temperature -40 to 150 °C
V
6
Volume CTRL DC voltage 7 V
0 4 8 12 Area(cm
2
)
30
40
50
60
R
thj-a
(˚C/W)
D97AU675
COPPER AREA 35µ
THICKNESS
PC BOARD
Rth with "on board" Square Heatsink vs. copper
area.
TDA7496L
2/10
Obsolete Product(s) - Obsolete Product(s)
ELECTRICAL CHARACTERISTICS
(continued)
Symbol Parameter Test Condition Min. Typ. Max. Unit
e
N
Total Output Noise f = 20Hz to 22KHz
Play, max volume
500 800 µV
f = 20Hz to 22KHz
Play, max attenuation
100 250 µV
f = 20Hz to 22KHz
Mute
60 150 µV
SR Slew Rate 5 8 V/µs
R
i
Input Resistance 22.5 30 KΩ
R
Var Out
Variable Output Resistance 30 100 Ω
R
load Var Out
Variable Output Load 2 KΩ
SVR Supply Voltage Rejection f = 1kHz; max volume
C
SVR
= 470µF; V
RIP
= 1V
rms
35 39 dB
f = 1kHz; max attenuation
C
SVR
= 470µF; V
RIP
=1V
rms
55 65 dB
T
M
Thermal Muting 150 °C
T
s
Thermal Shut-down 160 °C
MUTE STAND-BY & INPUT SELECTION FUNCTIONS
V
ST ON
Stand-by ON Threshold 3.5 V
V
ST OFF
Stand-by OFF Threshold 1.5 V
V
M ON
Mute ON Threshold 3.5 V
V
M OFF
Mute OFF Threshold 1.5 V
I
qST-BY
Quiescent Current @ Stand-by 0.6 1 mA
A
MUTE
Mute Attenuation 50 65 dB
I
stbyBIAS
Stand-by bias current Stand by on V
ST-BY
= 5V
V
MUTE
= 5V
80 µA
µA
Play or Mute -20 -5 µA
I
muteBIAS
Mute bias current Mute 1 5 µA
Play 0.2 2 µA
APPLICATION SUGGESTIONS
The recommended values of the external components are those shown on the application circuit of fig-
ure 1A. Different values can be used, the following table can help the designer.
COMPONENT
SUGGESTION
VALUE
PURPOSE
LARGER THAN
SUGGESTION
SMALLER THAN
SUGGESTION
R1 300K Volume control
circuit
Larger volume regulation
time
Smaller volume regulation
time
R2 10K Mute time constant Larger mute on/off time Smaller mute on/off time
P1 50K Volume control
circuit
C1 1000µF Supply voltage
bypass
Danger of oscillation
C2 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff
C3 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff
C4 470µF Ripple rejection Better SVR Worse SVR
C5 100nF Volume control time
costant
Larger volume regulation
time
Smaller volume regulation
time
C6 1000µF Output DC
decoupling
Lower low frequency cutoff Higher low frequency cutoff
C7 1µF Mute time costant Larger mute on/off time Smaller mute on/off time
C8 1000µF Output DC
decoupling
Lower low frequency cutoff Higher low frequency cutoff
C9 100nF Supply voltage
bypass
Danger of oscillation
TDA7496L
3/10
Obsolete Product(s) - Obsolete Product(s)
P1-P3P4-P6P7-P9P10-P10

TDA7496L

Mfr. #:
Buy TDA7496L
Manufacturer:
STMicroelectronics
Description:
Audio Amplifiers 2W DC Volume Control
Lifecycle:
New from this manufacturer.
Delivery:
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