INTEGRATED CIRCUITS
DATA SHEET
TDA7056
3 W mono BTL audio output amplifier
Product specification |
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May 1992 |
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File under Integrated Circuits, IC01 |
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Philips Semiconductors |
Product specification |
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3 W mono BTL audio output amplifier |
TDA7056 |
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FEATURES
∙No external components
∙No switch-on/off clicks
∙Good overall stability
∙Low power consumption
∙Short circuit proof
∙ESD protected on all pins.
QUICK REFERENCE DATA
GENERAL DESCRIPTION
The TDA7056 is a mono output amplifier contained in a 9 pin medium power package.
The device is designed for battery-fed portable mono recorders, radios and television.
SYMBOL |
PARAMETER |
CONDITIONS |
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MIN. |
TYP. |
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MAX. |
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UNIT |
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VP |
supply voltage |
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3 |
11 |
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18 |
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V |
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PO |
output power in 16 Ω |
VP = 11 V |
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2.5 |
3 |
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− |
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W |
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GV |
internal voltage gain |
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39 |
40.5 |
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42 |
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dB |
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IP |
total quiescent current |
VP = 11 V; |
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− |
5 |
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7 |
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mA |
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RL = ∞ |
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THD |
total harmonic distortion |
PO = 0.5 W |
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− |
0.25 |
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1 |
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% |
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ORDERING INFORMATION |
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EXTENDED |
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PACKAGE |
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TYPE NUMBER |
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PINS |
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PIN POSITION |
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MATERIAL |
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CODE |
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TDA7056 |
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9 |
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SIL |
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plastic |
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SOT110(1) |
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Note
1. SOT110-1; 1996 August 21.
May 1992 |
2 |
Philips Semiconductors |
Product specification |
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3 W mono BTL audio output amplifier |
TDA7056 |
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Fig.1 Block diagram.
PINNING
PIN |
DESCRIPTION |
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1 |
n.c. |
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2 |
VP |
3 |
input (+) |
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4 |
signal ground |
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5 |
n.c. |
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6 |
output (+) |
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7 |
power ground |
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8 |
output (−) |
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9 |
n.c. |
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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.
May 1992 |
3 |
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