Application Information

TS4962M

26/32

5.11

Different examples with summed inputs

Example 1: Dual differential inputs

R1

R1

Cs

1u

GND

GND

Vcc

SPEAKER

Standby

R2

R2

E1+

E1-

E2-

E2+

In-

Stdby

In+

Out-

Out+

Vcc

C2

C1

A1

A2

A3

B1

B2

B3

C3

GND

Internal

Bias

PWM

Output

Bridge

H

Oscillator

150k

150k

+

-

TS4962

A

V

1

Out

+

Out

-

–

E

1

+

E

1

-

–

-------------------------------

300

R

1

----------

==

A

V

2

Out

+

Out

-

–

E

2

+

E

2

-

–

-------------------------------

300

R

2

----------

==

0.5V

V

CC

R

1

×

R

2

300

V

IC1

R

2

V

IC2

+

×

R

1

×

()

×

+

×

300

R

1

R

2

+

() 2R

1

×

R

2

×

+

×

---------------------------------------------------------------------------------------------------------------------------

V

CC

0.8V

–

≤≤

V

IC

1

E

1

+

E

1

-

+

2

------------------------

=

and V

IC

2

E

2

+

E

2

-

+

2

------------------------

=