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PDF TEA2025 Data sheet ( Hoja de datos )

Número de pieza TEA2025
Descripción STEREO AUDIO AMPLIFIER
Fabricantes Unisonic Technologies 
Logotipo Unisonic Technologies Logotipo



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No Preview Available ! TEA2025 Hoja de datos, Descripción, Manual

UNISONIC TECHNOLOGIES CO.,LTD.
TEA2025
LINEAR INTEGRATED CIRCUIT
STEREO AUDIO AMPLIFIER
DESCRIPTION
The UTC TEA2025 is a monolithic integrated audio amplifier in
a 16-pin plastic dual in line package. It is designed for portable
cassette players and radios.
FEATURES
*Working Voltage down to 3V
*Few External components
*High Channel isolation
*Voltage gain up to 45dB(Adjustable with external resistor)
*Soft clipping
*Internal Thermal protection
ORDERING INFORMATION
Order Number
Lead Free
Halogen Free
TEA2025L-D16-T
TEA2025G-D16-T
Package
DIP-16
DIP-16
Packing
Tube
MARKING
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co.,LTD.
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TEA2025 pdf
TEA2025
OUT
R1
R2
LINEAR INTEGRATED CIRCUIT
IN
R1
R2
OUT
R3
R4
Figure 2
Output Capacitors
The low cut off frequency due to output capacitor depending on the load is given by:
with COUT 470uF and RL = 4 ohm it means FL = 80Hz.
Pop Noise (Figure 3)
Most amplifiers similar to UTC TEA2025 need external resistors between DC outputs and ground in order to
optimize the pop on/off performance and crossover distortion.
OUT
800
Figure 3
The UTC TEA2025 solution allows to save components because of such resistors (800 ohm) are included into the
chip.
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 connections.
- 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 characteristics.
- No sockets.
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 excessive junction temperature: all that happens is that PO (and therefore Ptot) and Id are
reduced.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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