Datasheet TDA7496 Datasheet (SGS Thomson Microelectronics)

TDA7496

5W+5W AMPLIFIER WITH DC VOLUME CONTROL

5+5WOUTPUTPOWER
R

=8Ω@THD= 10% VCC= 22V

L

ST-BYAND MUTEFUNCTIONS
LOW TURN-ON TURN-OFF POP NOISE
LINEAR VOLUME CONTROL DC COUPLED

WITH POWEROP. AMP.
NO BOUCHEROTCELL
NO ST-BY RC INPUT NETWORK
SINGLESUPPLYRANGINGUP TO35V
SHORTCIRCUITPROTECTION
THERMALOVERLOAD PROTECTION
INTERNALLYFIXED GAIN
SOFTCLIPPING
VARIABLE OUTPUT AFTER VOLUME CON-

TROL CIRCUIT
MULTIWATT 15 PACKAGE

DESCRIPTION

The TDA7496 is a stereo 5+5W class AB power

BLOCK AND APPLICATIONDIAGRAM

VAROUT_R

2

PROTECTIONS

VAROUT_L

+

­OP AMP

MUTE/STBY

+

-30K
OP AMP

INR

INL

470µF

PW_GND

470nF

S_GND

470nF

SVR 7

11

1

8

5

VOLUME

30K

VOLUME

34

VOLUME

MULTIPOWERBI50IITECHNOLOGY

Multiwatt15

ORDERING NUMBER: TDA7496

amplifier assembled in the @ Multiwatt 15 pack­age, specially designed forhigh quality sound, TV
applications.

Features of the TDA7496 include linear volume
control, Stand-byandmute functions.

V

S

13

60K

+5V

15

14

10

12

9

PW_GND

1000µF

OUTR

STBY

MUTE

OUTL

1000µF

10K

1µF

S1 ST-BY

S2 MUTE

+5V

S_GND

+5V

April 1998

100nF

300K

D96AU440D

1/10

TDA7496

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

S

V

IN

P

tot

amb Ambient Operating Temperature 0 to 70 °C

T

T

stg,Tj

V

3

DC Supply Voltage 35 V
Maximum Input Voltage 8 Vpp
Total Power Dissipation (Tamb = 80°C) 15 W

Storage and Junction Temperature -40 to 150 °C
Volume CTRL DC voltage 7 V

PIN CONNECTION

(Top view)

15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

D96AU441B

PW_GND
OUTR
V

S

OUTL
PW_GND
MUTE
STBY
S_GND
SVR
N.C.
INL
VAROUT_L
VOLUME
VAROUT_R
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

ELECTRICALCHARACTERISTICS

(RefertothetestcircuitV

= 22V; RL=8Ω,Rg=50Ω,T

S

amb

=25°C).

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

OS Output DC Offset Referred to

No Input Signal 200 mV

SVR Potenial

V

O

P

O

THD Total Harmonic Distortion G

I

peak

V

in

G

V Closed Loop Gain Vol Ctrl > 4.5V 28.5 30 31.5 dB

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

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

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

V

=8Ω;4W

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

2/10

TDA7496

ELECTRICALCHARACTERISTICS (continued)

Symbol Parameter Test Condition Min. Typ. Max. Unit

G

vLine

A

MinVOL

BW 0.6 MHz

e

N

SR Slew Rate 5 8 V/µs

R

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

T

M

T

s

MUTE STAND-BY & INPUT SELECTION FUNCTIONS

V

ST-ON

V

ST-OFF

V

MON Mute ON Threshold 3.5 V

V

M OFF

I

qST-BY

A

MUTE

I

stbyBIAS Stand-by bias current Stand by on VST-BY =5V

I

muteBIAS

Monitor Out Gain Vol Ctrl > 4.5V; Zload > 30KΩ -1.5 0 1.5 dB
Attenuation at Minimum Volume Vol Ctrl < 0.5V 80 dB

Total Output Noise f = 20Hz to 22KHz

500 800 µV

Play, max volume
f = 20Hz to 22KHz

100 250 µV

Play, max attenuation
f = 20Hz to 22KHz

60 150 µV

Mute

Input Resistance 22.5 30 K

i

35 39 dB

C

= 470µF;VRIP =1Vrms

SVR

f = 1kHz; max attenuation
C

= 470µF;V

SVR

RIP

=1V

rms

55 65 dB

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

Stand-by ON threshold 3.5 V
Stand-by OFF threshold 1.5 V

Mute OFF Threshold 1.5 V
Quiescent Current @ Stand-by 0.6 1 mA
Mute Attenuation 50 65 dB

80 µA

V

=5V

MUTE

Play or Mute -20 -5 µA

Mute bias current Mute 1 5 µA

Play 0.2 2

Ω

A

µ

A

µ

APPLICATIONSUGGESTIONS

The recommended values of theexternal components are those shown on the application circuit of fig­ure 1a. Differentvaluescan be used, the followingtablecan help the designer.

COMPONENT

SUGGESTION

VALUE

PURPOSE

R1 300K Volume controlcircuit
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
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 controltime

costant
C6 1000µF OutputDC 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 OutputDC decoupling Lower low frequency cutoff Higher low frequency cutoff

C9 100nF

Supply voltage

bypass

LARGER THAN

SUGGESTION

Larger volume regulation
time

Larger volume regulation
time

SMALLER THAN

SUGGESTION

Smaller volume regulation
time

Danger of oscillation

Smaller volume regulation
time

Danger of oscillation

3/10

TDA7496

Figure 1a:

+V

S

INR

INL

C4 470µF

ApplicationCircuit.

C1

1000µF

PW_GND

C2 470nF

S_GND

C3 470nF

11

1

30K

8

5

SVR 7

VOLUME

100nF

VAROUT_R

VOLUME

VOLUME

34

VAROUT_L

C5

R1 300K

2

+

­OP AMP

MUTE/STBY

PROTECTIONS

+

-30K
OP AMP

TP1

C9

0.1µF

V

S

13

VOL

P1

50K

LOG

+5V

15

14

10

12

9

PW_GND

C8 1000µF

C7

1µF

C6 1000µF

R2 10K

PW_GND
OUTR

OUTL
PW_GND

D96AU493D

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 optimizingthe POP performances)

A) USINGMUTE AND STAND-BY FUNCTIONS

VS(V)

ST-BY

pin#9 (V)

5

V

SVR

pin#7(V)

TDA7496

2.5V

MUTE

pin#10 (V)

5

INPUT

(mV)

V

OUT
(V)

I

Q

(mA)

B) USINGONLY THE MUTE FUNCTION
To semplify the application, the stand-by pin can

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

respectthe following conditions.

OFFSTBY MUTE PLAY STBYOFF MUTE

D97AU684

- At the turn-on, the transition 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 higherthan 2.5V.

5/10

TDA7496

QuiescentCurrent vs. SupplyVoltage

Iq (mA)

32

30

28

26

24

22

20

18

16

Vi=0

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

SupplyVoltage (V)

Output DC Offsetvs. Supply Voltage

Vodc-Vsvr(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

SupplyVoltage (V)

OutputDC Voltagevs. 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)

OutputPower vs. SupplyVoltage

Ouput Power (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

Ouput Power (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

SupplyVoltage (V)

6/10

THD=10 %

THD=1 %

Distortionvs.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

Output Power (W)

TDA7496

Distortionvs. 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

Output Power (W)

St-By Attenuationvs.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

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

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

Frequency (KHz)

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

MuteAttenuationvs. 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

1K

1K

30K

30K

-

OUT R

+

100µA

D97AU585A

7/10

TDA7496

PINS:

PIN:

INL, INR

INn

SVR

VOLUME

VOL

30K

10µA

D97AU591

6K

D97AU589

V

S

PINS:

VAROUT-L,VAROUT-R

V

S

V

S

500µA

VAROUT-L

D97AU590

PIN:

MUTE

V

S

200MUTE

10K

50µA

D97AU592

PINS: PW-GND,S-GND

GND

PIN: STBY

STBY

200

65K

V

D97AU593

PINS: OUT R, OUT L

V

S

S

D97AU588

V

S

10µA

OUT

8/10

D97AU594

MULTIWATT15 PACKAGE MECHANICAL DATA

TDA7496

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 0.200 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

9/10

TDA7496

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patentrights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products arenotauthorized for useas criticalcomponentsin life supportdevicesor systemswithout express
written approval of SGS-THOMSON Microelectronics.

 1998SGS-THOMSON Microelectronics–PrintedinItaly–AllRightsReserved

SGS-THOMSONMicroelectronicsGROUPOFCOMPANIES

Australia-Brazil-Canada-China-France-Germany-Italy - Japan - Korea-Malaysia -Malta-Morocco- The Netherlands-

Singapore -Spain-Sweden-Switzerland- Taiwan-Thailand-UnitedKingdom -U.S.A.

10/10