DKB, You are infected with a virus and are attacking the PICLIST posters. Please get help! -------- Original Message -------- Subject: volts also powers the charge-pump Date: Tue, 19 Jun 2001 20:20:32 -0600 (MDT) From: dkb A local -5V supply. The negative supply current is small, so simple RC filters at IC2 and IC4 are adequate for reducing the charge pump's switching noise. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body