1997 Aug 15 2
NXP Semiconductors Product specification
5 W mono BTL audio amplifier with DC
volume control
TDA7056B
FEATURES
DC volume control
Few external components
Mute mode
Thermal protection
Short-circuit proof
No switch-on and switch-off clicks
Good overall stability
Low power consumption
Low HF radiation
ESD protected on all pins.
GENERAL DESCRIPTION
The TDA7056B is a mono Bridge-Tied Load (BTL) output
amplifier with DC volume control.
It is designed for use in TV and monitors, but is also
suitable for battery-fed portable recorders and radios.
The device is contained in a 9-pin medium power package.
A Missing Current Limiter (MCL) is built in. The MCL circuit
is activated when the difference in current between the
output terminal of each amplifier exceeds 100 mA
(300 mA typ.). This level of 100 mA allows for headphone
applications (single-ended).
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
supply voltage 4.5 18 V
P
O
output power V
P
=12V
R
L
=16 33.5 W
R
L
=8 55.5 W
G
v(max)
maximum total voltage gain 39.5 40.5 41.5 dB
gain control 68 73.5 dB
I
q(tot)
total quiescent current V
P
=12V; R
L
= 9.2 13 mA
THD total harmonic distortion P
O
=0.5W 0.3 1 %
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA7056B SIL9MPF plastic single in-line medium power package with fin; 9 leads SOT110-1
