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1997 Jul 15 2
Philips Semiconductors Product specification
Stereo BTL audio output amplifier with DC
volume control
TDA7053A
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 TDA7053A (2 × 1 W) and TDA7053AT (2 × 0.5 W) are
stereo BTL output amplifiers with DC volume control.
The devices are designed for use in TV and monitors, but
are also suitable for battery-fed portable recorders and
radios.
Missing Current Limiter (MCL)
A MCL protection circuit is built-in. The MCL circuit is
activated when the difference in current between the
output terminal of each amplifier exceeds 100 mA
(typical 300 mA). 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
out
output power V
P
=6V
TDA7053A R
L
=8Ω 0.85 1.0 − W
TDA7053AT R
L
=16Ω 0.5 0.55 − W
G
v
voltage gain 39.5 40.5 41.5 dB
G
C
gain control 68.0 73.5 − dB
I
q(tot)
total quiescent current V
P
=6V; R
L
=∞−22 25 mA
THD total harmonic distortion
TDA7053A P
out
= 0.5 W − 0.3 1 %
TDA7053AT P
out
= 0.25 W − 0.3 1 %
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA7053A DIP16
plastic dual in-line package; 16 leads (300 mil); long body
SOT38-1
TDA7053AT SO16
plastic small outline package; 16 leads; body width 7.5 mm
SOT162-1