PREFERRED_PULSE_EMITTER_FOLLOWER

Published:2009/7/23 23:33:00 Author:Jessie | From:SeekIC

Two-stage cascaded emitter-follower is intended primarily as video line driver for positive pulses. Will drive load impedances as low as 50 ohms. Input impedance is about 80000 ohms in parallel with 25 pf. May be modified for negative inputs by replacing Q1 and Q2 with complementary pnp types and reversing polarity of collector supply. Voltage amplification is 0.975 and power gain is 30 db.-NBS, Handbook Preferred Circuits Navy Aeronautical Electronic Equipment, Vol. II, Semiconductor Device Circuits, 1962, PSC 21 (originally PC 221) p 21-2.



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