TS4962 datasheet(8/46 Pages) STMICROELECTRONICS

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Application component information

TS4962

8/46

Application component information

Figure 1.

Typical application schematics

Table 4.

Component information

Component

Functional description

Bypass supply capacitor. Install as close as possible to the TS4962 to

minimize high-frequency ripple. A 100nF ceramic capacitor should be added

to enhance the power supply filtering at high frequency.

Rin

Input resistor used to program the TS4962 differential gain (Gain = 300k

Ω/Rin

with Rin in kΩ).

Input capacitor

Because of common mode feedback these input capacitors are optional.

However, they can be added to form with Rin a 1st order high pass filter with

-3dB cut-off frequency = 1/(2*

π*R

in*Cin).

Rin

GND

Vcc

SPEAKER

capacitors

Input

are optional

Differential

Input

In+

GND

In-

GND

In-

Stdby

In+

Out-

Out+

Vcc

GND

Internal

Bias

PWM

Output

Bridge

Oscillator

150k

Rin

GND

Vcc

Differential

Input

capacitors

Input

are optional

In+

GND

In-

GND

2µF

15µH

Load

4 Ohms LC Output Filter

8 Ohms LC Output Filter

2µF

GND

1µF

30µH

1µF

GND

In-

Stdby

In+

Out-

Out+

Vcc

GND

Internal

Bias

PWM

Output

Bridge

Oscillator

150k

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