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From: "Brill Pappin"
Subject: Re: help reading datasheet for buzzer
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Wed, 16 Oct 2002 06:21:31 GMT
NNTP-Posting-Date: Wed, 16 Oct 2002 02:21:31 EDT
I'm afraid I don't know much about sound input/output particularly with this
kind of device. The idea is to allow the user to produce simple musical
tones or other sounds to get feedback from the device (robotics).
I am currently testing the device with an old buzzer out of my workbench
drawer, but its a self drive, and produces terrible sound ;)
- Brill Pappin
"Fred Bloggs" wrote in message
> Karel J. wrote:
> >>I'm trying to select a buzzer for use on a small tone generator board
> >>running at 5V. The board can generate DTMF and well as musical tones
> >>up to about 2.5kHz.
> >>I've found one I like, but I need some info on what the specs mean.
> >>Basically it says: 50Vp-p Max Voltage.
> >>Does this mean that I can run it at 5V but not above 50V?
> >>Datasheet is here if you want to take a look:
> > If you are running at 5 V, you had better look for a buzzer that works
> > volt. they exist with an internal signal generator, and as a "speaker"
> > you have to provide them with an squarewave voltage).
> > The one you have selected gives only specs at 10 Vpp at 2500 Hz?
> Wouldn't a bridge drive at 5V Vcc be 10Vpp? The output will be 80dB SPL
> @ 10cm and 2.5KHz, provided the driver can handle 16nF loading. The only
> info missing is the sound response as a function of frequency.
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