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TDA7056A

3 W BTL mono audio output amplifier with DC volume control

Philips Electronics 

Philips Semiconductors

3 W BTL mono audio output amplifier

with DC volume control

Product specificiation

TDA7056A

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

SYMBOL

VP

PO

Gv

φ

IP

THD

PARAMETER

positive supply voltage range

output power

voltage gain

gain control range

total quiescent current

total harmonic distortion

CONDITIONS

RL = 16 Ω; VP = 12 V

VP = 12 V; RL = ∞

VP = 0.5 W

MIN.

4.5

3

34.5

75

−

−

TYP.

−

3.5

35.5

80

8

0.3

MAX. UNIT

18

V

−

W

36.5 dB

−

dB

16

mA

1

%

ORDERING INFORMATION

EXTENDED TYPE

NUMBER

TDA7056A

PINS

9

Note

1. SOT110-1; 1996 August 21.

PIN POSITION

SIL

PACKAGE

MATERIAL

plastic

CODE

SOT110

July 1994

2

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