![]() ![]() This rise in emitter voltage will also be seen at Tr2 emitter, and as the base of Tr2 is held at a steady potential the base/emitter potential of Tr2 will be reducing, tending to turn Tr2 off. ![]() ![]() This increase in Tr1 current will tend to increase the voltage across the shared emitter resistor R e. When the voltage at Tr1 base increases during the positive going half cycle of the input wave, the voltage at Tr1 collector will fall as the current through Tr1 increases. Notice that both transistors share the same emitter resistor R e and two anti phase outputs are taken from the two collectors. No AC appears on the base of Tr2 due to the decoupling capacitor C3. In this discrete component version the audio input is applied to the base of Tr1 while the base of Tr2 is held at a steady DC potential. 5.4.3 is based on the emitter coupled, or long tailed pair differential amplifier, commonly found within integrated circuits. The phase splitter circuit illustrated in Fig. Fig 5.4.3 Emitter Coupled (Long Tailed Pair) Phase Splitter ![]()
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