Datasheet TDA7496S Datasheet (SGS Thomson Microelectronics)

®

5+5W OUTPUT POWER
R

= 8Ω @THD = 10% VCC = 22V

L

ST-BY AND MUTE FUNCTIONS
LOW TURN-ON TURN-OFF POP NOIS E
NO BOUCHEROT CELL
NO ST-BY RC INPUT NETWORK
SINGLE SUPPLY RANGING UP TO 35V
SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION
INTERNALLY FIXED GAIN
SOFT CLIPPING
MULTIWATT 15 PACKAGE

DESCRIPTION

The TDA7496 is a stereo 5+5W class AB power
amplifier assembled in the @ Multiwatt 15 pack­age, specially designed for high quality s ound, TV
applications.

TDA7496S

5W+5W AMPLIFIER

MULTIPOWER BI50II TECHNOLOGY

Multiwatt15

ORDERING NUMBER:

Features of the TDA7496 include Stand-by and
mute functions.

TDA7496

BLOCK AND APPLICATION DIAGRAM

INR

470nF

S_GND

PW_GND

INL

470nF

470µF

1

30K

8

MUTE/STBY

PROTECTIONS

11

5

SVR 7

+

­OP AMP

+

-30K
OP AMP

V

S

13

1000µF

OUTR

STBY

MUTE

OUTL

1000µF

PW_GND

10K

1µF

D99AU1015

S1 ST-BY

S2 MUTE

+5V

S_GND

+5V

60K

14

9

10

12

15

Jenuary 2000

1/10

TDA7496S

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

S

V

IN

P

tot

T

amb

, T

T

stg

DC Supply Voltage 35 V
Maximum Input Voltage 8 Vpp
Total Power Dissipation (Tamb = 80°C) 15 W
Ambient Operating Temperature 0 to 70 °C
Storage and Junction Temperature -40 to 150 °C

j

PIN CONNECTION

(Top view)

15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

D99AU1016

PW_GND
OUTR
V

S

OUTL
PW_GND
MUTE
STBY
S_GND
SVR
N.C.
INL
N.C.
N.C.
N.C.
INR

THERMAL DATA

Symbol Parameter Value Unit

R

th j-case

R

th j-amb

Thermal Resistance Junction-case Typ. = 4 Max. = 4.6 °C/W
Thermal Resistance Junction-ambient max 35 °C/W

ELECTRICAL CHARACTERISTICS

(Refer to the te s t ci r cui t V

= 22V; RL = 8Ω, Rg = 50Ω, T

S

= 25°C).

amb

Symbol Parameter Test Condition Min. Typ. Max. Unit

V

DCV

S

I

q

Supply Voltage Range 10 32 V
Total Quiescent Current 25 50 mA
Output DC Offset Referred to

OS

No Input Signal 200 mV

SVR Potenial

V

O

P

O

THD Total Harmonic Distortion G

I

peak

V

in

G

V

Quiescent Output Voltage Vs = 22V 11 V
Output Power THD = 10%; RL = 8Ω; Vs = 22V 5 5.5 W

THD = 1%; R
THD = 10%; R
THD = 1%; R

= 30dB; PO = 1W; f = 1KHz; 0.4 %

V

= 8Ω; Vs = 22V 4 W

L

= 4Ω; VCC = 12V 2.1 W

L

= 4Ω; VCC = 12V 1.0 W

L

Output Peak Current (internally limited) 1 1.3 A
Input Signal 2.8 Vrms
Closed Loop Gain 28.5 30 31.5 dB

2/10

TDA7496S

ELECTRICAL CHARACTERISTICS

(continued)

Symbol Parameter Test Condition Min. Typ. Max. Unit

BW 0.6 MHz

e

N

Total Output Noise f = 20Hz to 22KHz

60 150 µV

Play
f = 20Hz to 22KHz

60 150 µV

Mute

SR Slew Rate 5 8 V/µs

R

i

SVR Supply Voltage Rejection f = 1kHz;

T

M

T

s

Input Resistance 22.5 30 KΩ

35 39 dB

C

= 470µF; V

SVR

RIP

= 1V

rms

Thermal Muting 150 °C
Thermal Shut-down 160 °C

MUTE STAND-BY & INPUT SELECTION FUNCTIONS

V

ST-ON

V

ST-OFF

V

M ON

V

M OFF

I

qST-BY

A

MUTE

I

stbyBIAS

Stand-by ON threshold 3.5 V
Stand-by OFF threshold 1.5 V
Mute ON Threshold 3.5 V
Mute OFF Threshold 1.5 V
Quiescent Current @ Stand-by 0.6 1 mA
Mute Attenuation 50 65 dB
Stand-by bias current Stand by on V

V

ST-BY
MUTE

= 5V

= 5V

80 µA

Play or Mute -20 -5 µA

I

muteBIAS

Mute bias current Mute 1 5 µA

Play 0.2 2 µA

µA

APPLICATION SUGGES TION S

The recommended values of t he external components are those shown on t he application circuit of fig­ure 1a. Different values can be used, the following table can help the designer.

COMPONENT

SUGGESTION

VALUE

PURPOSE

LARGER THAN

SUGGESTION

R2 10K Mute time constant Larger mute on/off time Smaller mute on/off time
C1 1000µF

Supply voltage

bypass
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
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

SMALLER THAN

SUGGESTION

Danger of oscillation

Danger of oscillation

3/10

TDA7496S

Figure 1a:

Application Circuit.

+V

S

C4 470µF

INR

INL

C1

1000µF

PW_GND

C2 470nF

S_GND

C3 470nF

SVR 7

C9

0.1µF

V

S

11
1

30K

8

PROTECTIONS

5

13

+

­OP AMP

MUTE/STBY

+

-30K
OP AMP

15

14

10

12

9

PW_GND

C8 1000µF

C7

1µF

C6 1000µF

D99AU1017

R2 10K

PW_GND
OUTR

OUTL
PW_GND

S1 STBY

S2 MUTE

+5V

S_GND

+5V

Figure 1b:

P.C.B. and Component Layout.

4/10

MUTE STAND-BY TRUTH TABLE

MUTE ST-BY OPERATING CONDITION

H H STANDBY

L H STANDBY

H L MUTE

L L PLAY

Turn ON/OFF Sequences (for optimizing the POP performances)

A) USING MUTE AND STAND-BY FUNCTION S

VS (V)

ST-BY

pin#9 (V)

5

V

SVR

pin#7(V)

TDA7496S

2.5V

MUTE

pin#10 (V)

5

INPUT

(mV)

V

OUT
(V)

I

Q

(mA)

B) USING ONLY THE MUTE FUNCTI ON
To semplify the application, the stand-by pin can

be connected directly to Ground.
During the ON/OFF transitions is recommend to

respect the following conditions.

OFFSTBY MUTE PLAY STBYOFF MUTE

D97AU684

- At the turn-on, the trans ition mute - play must
be made when the SVR pin is higher than

2.5V

- At the turn-off, the TDA7496 must be brought
to mute from the play condition when the SVR
pin is higher than 2.5V.

5/10

TDA7496S

Quiescent Current vs. Supply Voltage

Iq (m A )

32

30

28

26

24

22

20

18

16

Vi=0

10 12 14 16 18 20 22 24 26 28 30 32

S upply Voltage (V)

Output DC Offset vs. Supply Voltage

V odc -V s v r (V)

300
280
260
240
220
200
180
160
140
120
100

10 12 14 16 18 20 22 24 26 28 30 32

Vi=0

S upply Voltag e (V)

Output DC Voltage vs. Supply Voltage

Vodc (V)

18
17
16
15
14
13
12
11
10

9
8
7
6
5
4

Vi= 0

10 12 14 16 18 20 22 24 26 28 30 32

Supply Voltage (V)

Output Power vs. Supply Voltage

Ou put P ow e r (W)

10

9
8
7
6
5
4
3
2
1
0

Rl=8 Ohm
F= 1 KHz

THD=10 %

THD=1 %

10 12 14 16 18 20 22 24 26

Supply Voltage (V)

Output Power vs. Supply Voltage

O u pu t Pow e r (W)

3.6

3.4

3.2
3

2.8

2.6

2.4

2.2

1.8

1.6

1.4

1.2

0.8

0.6

0.4

0.2

Rl=4 Ohm
F= 1 KHz

2

1

0

10 10.5 11 11.5 12 12.5 13 13.5 14

S u p p ly Volta g e (V)

6/10

THD=10 %

THD=1 %

Distortion vs. Output Power

Distortion (%)

10

Vs=22V

Rl=8 Ohm

1

F=15 KHz

0.1

F=1 KHz

0.01

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

Ou tput Pow e r (W)

TDA7496S

Distortion vs. Output Power

Distortion (%)

10

F=15 KHz

1

Vs=12V

0.1

Rl=4 Ohm

F=1 KHz

0.01

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1

Outp u t Power (W)

St-By Attenuation vs. Vpin 9

Stand-by Attenuation (dB)

20
10

0

-10

-20

-30

-40

Rl=8 Ohm

-50

0 dB @ Pout=1W

-60

-70

-80

-90

-100

-110

-120

-130

-140

00.511.522.533.544.55

Vpin # 9 (V)

Closed Loop Gain vs. Frequency

Closed Loop Gain (dB )

32
31
30
29
28
27
26
25
24
23
22
21
20

0.02 0.2 2 20

Rl=8 Ohm
Pout=0.5W
Cin=470nF
Cout =1000uF
Csvr=470 uF

Frequency (KHz)

Mute Attenuation vs. Vpin 10

Mute Attenuation (dB)

20
10

0

-10

-20

-30

Rl=8 Ohm

-40

0 dB @ Pout=1W

-50

-60

-70

-80

-90

-100

-110

-120

0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 4.4 4.8 5.2

Vpin # 10 (V)

PINS DESCRIPTION
PIN:

SVR

SVR

V

S

V

S

V

S

+

OUT L

-

20K

20K

6K

6K

30K

1K

1K

30K

-

OUT R

+

100µA

D97AU585A

7/10

TDA7496S

PINS:

INL, INR

INn

SVR

PINS:

PW-GND, S-GND

GND

30K

6K

D97AU589

V

D97AU593

PIN:

MUTE

V

S

V

S

500µA

PINS:

OUT R, OUT L

S

200MUTE

10K

D97AU592

V

OUT

50µA

S

PIN:

STBY

STBY

200

65K

D97AU594

D97AU588

V

S

10µA

8/10

TDA7496S

DIM.

MIN. TYP. MAX. MIN. TYP. MAX.

A 5 0.197
B 2.65 0.104
C 1.6 0.063
D 1 0.039
E 0.49 0.55 0.019 0.022

F 0.66 0.75 0.026 0.030

G 1.02 1.27 1.52 0.040 0.050 0.060
G1 17.53 17.78 18.03 0.690 0.700 0.710
H1 19.6 0.772
H2 20.2 0.795

L 21.9 22.2 22.5 0.862 0.874 0.886
L1 21.7 22.1 22.5 0.854 0.870 0.886
L2 17.65 18.1 0.695 0.713
L3 17.25 17.5 17.75 0.679 0.689 0 .699
L4 10.3 10.7 10.9 0.406 0.421 0.429
L7 2.65 2.9 0.104 0.114

M 4.25 4.55 4.85 0.167 0.179 0.191

M1 4.63 5.08 5.53 0.182 0.20 0 0.218

S 1.9 2.6 0.075 0.102

S1 1.9 2.6 0.075 0.102

Dia1 3.65 3.85 0.144 0.152

mm inch

OUTLINE AND

MECHANICAL DATA

Multiwatt15 V

9/10

TDA7496S

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