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BA3304F fiches techniques PDF

ROHM Semiconductor - 3V Dual Preamplifier

Numéro de référence BA3304F
Description 3V Dual Preamplifier
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BA3304F fiche technique
Audio ICs
3V dual preamplifier
BA3304F
The BA3304F is a monolithic, dual-preamplifier IC designed for 3V applications. It has been designed especially for low-
voltage operation.
The preamplifiers can be directly coupled to the head to minimize the “pop” noise at power on. When combined with the
Rohm BA5204, it is a simple matter to design a high-performance circuit for cassette players.
FApplications
3V headphone stereos, 3V micro-cassette players and
low-voltage stereo equipment
FFeatures
1) Low noise (VNIN = 1.2µVrms).
2) Input coupling capacitors not required.
3) No input coupling capacitors means high bass stabil-
ity.
4) Good channel balance.
5) Built-in bias circuit minimizes “pop” noise.
6) Emitter-follower output for low output impedance.
7) Good low voltage characteristics (operation possible
from Typ. 1.2V).
FBlock diagram
178

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