TCA210

Ii II TCA210 AUDIO AMPLIFIER AND PRE-AMPLIFIER The TCA210 isa monolithic integrated circuit comprising two amplifiers for use in intercoms and other audio systems. The first is a high-gain pre-amplifier with differential input and I;l c1ass-A output stage which can deliver 2,5 mW into an 800 Q load. The second is a power amplifier with a c1ass-B output stage capable of deHvering 500 mW into a 25 Q load. Speech rating: up to 800 mW can be delivered into a 15 Q load for short periods. When there is no signal, the current consumption is 8 rnA (typ.). Squelch provision incorporated in both amplifiers can be used to ensure maximum battery life. Supply voltage Total current drain QUICK REFERENCE DATA Vp Itot Pre -amplifier Open loop voltage gain Output power at R L = 800 Q t\oise figure (B = 300 to 4000 Hz) RS = 500 Q Unity-gain bandwidth (compensated) Gv Po F B nom. typo 12 V 8 rnA typo 10000 typo 2,5 mW < 6 dB > 10 MHz Output amplifier Open loop voltage gain Output pow.er at RL =...