TDA2025B View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDA2025B

STEREO AUDIO AMPLIFIER

STMicroelectronics 

TEA2025B - TEA2025D

Stability

A good layout is recommended in order to avoid

oscillations.

Generally the designer must pay attention on the

following points:

- Short wires of components and short connec-

tions.

- No ground loops.

- Bypass of supply voltage with capacitors as

nearest as possible to the supply I.C.pin.The

low value(poliester)capacitors must have

good temperature and frequency charac-

teristics.

- No sockets.

2) the heatsink can have a smaller factor of safety

compared with that of a conventional circuit.

There is no device damage in the case of ex-

cessive junction temperature: all that happens

is that PO (and therefore Ptot) and Id are re-

duced.

APPLICATION SUGGESTION

The recommended values of the components are

those shown on stereo application circuit of

Fig. 2 different values can be used, the follow-

ing table can help the designer.

COMPONENT

C1,C2

C3

C4,C5

C6,C7

C8,C9

C10, C11

RECOMMENDED

VALUE

0.22µF

100µF

PURPOSE

INPUT

DC

DECOUPLING IN

CASE OF SLIDER

CONTACT NOISE OF

VARIABLE

RESISTOR

RIPPLE REJECTON

100µF

470µF

0.15µF

100µF

BOOTSTRAP

OUTPUT

DC

DECOUPLING

FREQUENCY

STABILITY

INVERTING INPUT

DC DECOUPLING

LARGER THAN

SMALLER THAN

DEGRADATION OF

SVR, INCREASE OF

THD AT LOW

FREQUENCY AND

LOW VOLTAGE

INCREASE OF LOW

FREQUENCY CUT-

OFF

DANGER

OF

OSCILLATIONS

INCREASE OF LOW

FREQUENCY CUT-

OFF

6/9

Share Link: