TS4962M

Application information

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In the case where the distance between the TS4962M outputs and speaker terminals is

high, it is possible to have low frequency EMI issues due to the fact that the typical operating

frequency is 250kHz. In this configuration, we recommend using an output filter (as shown

in Figure 1: Typical application schematics on page 4). It should be placed as close as

possible to the device.

5.11

Different examples with summed inputs

Example 1: Dual differential inputs

Figure 64.

Typical application schematic with 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

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

=