TEA-2025 ST Microelectronics, TEA-2025 Datasheet - Page 6

• Manufacturer Part Number: TEA-2025
• Description: STEREO AUDIO AMPLIFIER
• Manufacturer: ST Microelectronics

TEA2025B - TEA2025D
Stability
A good layout is recommended in order to avoid
oscillations.
Generally the designer must pay attention on the
following points:
6/9
- 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
good temperature and frequency charac-
teristics.
COMPONENT
C10, C11
C1,C2
C4,C5
C6,C7
C8,C9
C3
RECOMMENDED
VALUE
0.22 F
0.15 F
100 F
100 F
470 F
100 F
have
INPUT
DECOUPLING
CASE
CONTACT NOISE OF
VARIABLE
RESISTOR
RIPPLE REJECTON
BOOTSTRAP
OUTPUT
DECOUPLING
FREQUENCY
STABILITY
INVERTING
DC DECOUPLING
PURPOSE
OF
2) the heatsink can have a smaller factor of safety
APPLICATION SUGGESTION
The recommended values of the components are
those
Fig. 2 different values can be used, the follow-
ing table can help the designer.
SLIDER
INPUT
- No sockets.
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 P
duced.
DC
DC
IN
shown on stereo application
O
LARGER THAN
(and therefore P
DEGRADATION
SVR, INCREASE OF
THD
FREQUENCY
LOW VOLTAGE
INCREASE OF LOW
FREQUENCY
OFF
DANGER
OSCILLATIONS
INCREASE OF LOW
FREQUENCY
OFF
tot
SMALLER THAN
) and Id are re-
AT
circuit of
CUT-
CUT-
LOW
AND
OF
OF