This preview shows page 1. Sign up to view the full content.
Unformatted text preview: NOT open-collector) inverting TTL output. Pull-up resistor IS NOT NEEDED on output. V CC (+) V out Ground QSE157 inFrared TTL photosensor (top view) NPN ( 2N3904 ) B C E N ot P ointing i N V BE . 65 V V CE, saturation . 2 V 100 (top view) PNP ( 2N3906 ) B E C P oints i N P roudly 2N3904 NPN/ 2N3906 PNP Bipolar Junction Transistor (BJT) Copyright c c 20072009 by Theodore P. Pavlic Creative Commons Attribution-Noncommercial 3.0 License Page 1 of 1...
View Full Document
This note was uploaded on 08/05/2011 for the course ECE 209 taught by Professor Staff during the Fall '08 term at Ohio State.
- Fall '08