BA5204F Description
(refer to the Internal Circuit diagram) (1) Preamplifier Stage The preamplifier is prised of the level-shift transistor Q101, a differential amplifier (Q102 and Q105), and the active load (Q103 and Q106). The input is a PNP transistor that does not require a coupling capacitor. (2) Pre-drive stage Q118 is the pre-drive transistor.