TDA7497 查看數據表（PDF） - STMicroelectronics

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TDA7497

10W+10W+10W/18W TRIPLE AMPLIFIER

STMicroelectronics 

TDA7497

10W+10W+10W/18W TRIPLE AMPLIFIER

s 10+10W (RL = 8Ω) + 18W ( RL = 4Ω) or

10+10+10W ( RL = 8Ω)

OUTPUT POWER @THD = 10%, Vcc = 26V

s INDEPENDENT MUTE FOR CENTER

CHANNEL AND MAIN CHANNELS

s NO TURN-ON TURN-OFF POP NOISE

s NO BOUCHEROT CELL

s SINGLE SUPPLY RANGING UP TO 35V

s SHORT CIRCUIT PROTECTION

s THERMAL OVERLOAD PROTECTION

s INTERNALLY FIXED GAIN

s SOFT CLIPPING

s MULTIWATT 15 PACKAGE

MULTIPOWER BI50II TECHNOLOGY

Multiwatt15

ORDERING NUMBER: TDA7497

DESCRIPTION

The TDA7497 is a triple 10+10+10/18W class AB

power amplifier assembled in the @ Multiwatt 15

package, specially designed for high quality sound,

BLOCK DIAGRAM

TV applications.

Features of the TDA7497 include mute functions, in-

dependently controller for main and center channels.

PW_GND

11

C1

1

INR

470nF

S_GND

8

PW_GND_C

4

C2

5

INL

470nF

C3

6

INC

470nF

C4

SVR 7

470µF

VS_C

2

VS

13

C11

0.1µF

+VS

C9

1000µF

C10

C8 1000µF

0.1µF

+

14

-

30K

OP AMP

OUTR

C12 1µF

9

10K R2

S1 MUTE2

(CENTER)

+5V

MUTE

PROTECTIONS

+

MUTE2

10K R1

S_GND

10 MUTE1

60K

C7

1µF

12 OUTL

+5V

S2 MUTE1

(L/R)

-

30K

OP AMP

C6 1000µF

+

-

30K

OP AMP

C5

3 OUTC

1000µF

PW_GND

15

D98AU961B

January 2003

1/7

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