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TDA7056 Scheda tecnica(PDF) 3 Page - NXP Semiconductors |
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TDA7056 Scheda tecnica(HTML) 3 Page - NXP Semiconductors |
3 / 8 page May 1992 3 Philips Semiconductors Product specification 3 W mono BTL audio output amplifier TDA7056 Fig.1 Block diagram. PINNING PIN DESCRIPTION 1 n.c. 2VP 3 input ( +) 4 signal ground 5 n.c. 6 output ( +) 7 power ground 8 output ( −) 9 n.c. 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. |
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