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From: Fred Bloggs
User-Agent: Mozilla/5.0 (Windows; U; Win 9x 4.90; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0
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Subject: Re: help reading datasheet for buzzer
Date: Sat, 12 Oct 2002 23:58:20 GMT
NNTP-Posting-Date: Sat, 12 Oct 2002 16:58:20 PDT
Organization: EarthLink Inc. -- http://www.EarthLink.net
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 at 5
> volt. they exist with an internal signal generator, and as a "speaker" (t.i.
> 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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