Philips TDA7056A 3 W BTL mono audio output amplier with DC volume control TDA7056A

July 1994 2

Philips Semiconductors Product speciﬁciation

3 W BTL mono audio output ampliﬁer

FEATURES

•DC volume control

•Few external components

•Mute mode

•Thermal protection

•Short-circuit proof

•No switch-on and off clicks

•Good overall stability

•Low power consumption

•Low HF radiation

•ESD protected on all pins.

GENERAL DESCRIPTION

The TDA7056A is a mono BTL output amplifier with DC

volume control. It is designed for use in TV and monitors,

but also suitable for battery-fed portable recorders and

radios.

Missing Current Limiter (MCL)

A MCL protection circuits 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

Note

1. SOT110-1; 1996 August 21.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

VPpositive supply voltage range 4.5 −18 V

POoutput power RL = 16 Ω; VP = 12 V 3 3.5 −W

Gvvoltage gain 34.5 35.5 36.5 dB

φgain control range 75 80 −dB

IPtotal quiescent current VP = 12 V; RL = ∞−816mA

THD total harmonic distortion VP = 0.5 W −0.3 1 %

EXTENDED TYPE

NUMBER

PACKAGE

PINS PIN POSITION MATERIAL CODE

TDA7056A 9 SIL plastic SOT110