The LM384 has been around a long time and very simple to implement. I have even breadborded it successfully with wire wrap on 100 mil perf board. Front end it with a 50k pot and capacitively couple the output to the speaker. ----- Original Message ----- From: To: Sent: Thursday, November 27, 2003 10:51 AM Subject: Re: [PIC]: Driving a speaker? > It is a 8 ohm impedance speaker? > > ----- Original Message ----- > From: "Michael J. Pawlowsky" > To: > Sent: Thursday, November 27, 2003 10:04 AM > Subject: Re: [PIC]: Driving a speaker? > > > > I do it through a 10uF cap. > > > > PIC + ------- +cap- ---------+ speaker - ------- gnd > > > > http://microengineeringlabs.com/resources/pbpmanual/images/speaker.gif > > > > > > >> In Microchip application notes AN529, it show an example of industrial > > >> clock. > > >> > > >> A speaker was wiring to RA0 of PIC16C57. As a typical speaker have an > > >> impedence of 8-ohm. I am wondering are I/Os of 16C57 could sufficiently > > >> drive the speaker. Am I missing anything? > > > > -- > > http://www.piclist.com hint: To leave the PICList > > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.537 / Virus Database: 332 - Release Date: 06/11/03 > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu