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TDA7056 Scheda tecnica(PDF) 3 Page - NXP Semiconductors

Il numero della parte TDA7056
Spiegazioni elettronici  3 W mono BTL audio output amplifier
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Produttore elettronici  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA7056 Scheda tecnica(HTML) 3 Page - NXP Semiconductors

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May 1992
3
Philips Semiconductors
Product specification
3 W mono BTL audio output amplifier
TDA7056
Fig.1 Block diagram.
PINNING
PIN
DESCRIPTION
1
n.c.
2VP
3
input (
+)
4
signal ground
5
n.c.
6
output (
+)
7
power ground
8
output (
−)
9
n.c.
FUNCTIONAL DESCRIPTION
The TDA7056 is a mono output amplifier, designed for
battery-fed portable radios and mains-fed equipment such
as television. For space reasons there is a trend to
decrease the number of external components. For
portable applications there is also a trend to decrease the
number of battery cells, but still a reasonable output power
is required.
The TDA7056 fulfills both of these requirements. It needs
no peripheral components, because it makes use of the
Bridge-Tied-Load (BTL) principle. Consequently it has, at
the same supply voltage, a higher output power compared
to a conventional Single Ended output stage. It delivers an
output power of 1 W into a loudspeaker load of 8
Ω with 6
V supply or 3 W into 16
Ω loudspeaker at 11 V without
need of an external heatsink. The gain is internally fixed at
40 dB. Special attention is given to switch-on/off click
suppression, and it has a good overall stability. The load
can be short circuited at all input conditions.


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