Searching \ for 'ceramic resonators.' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: techref.massmind.org/techref/timers.htm?key=resonator
Search entire site for: 'ceramic resonators.'.

Truncated match.
PICList Thread
'ceramic resonators.'
1998\04\14@120117 by Haile, Sam

flavicon
face
Hi all
need help
can any one of you explain this to me pls.


>>>>
Note that all that is required for assembly language programming is the MPLAB
software package which is available for free from the Microchip home page
and a PIC programmer, and of course some PIC16F84 and 4.0 MHz ceramic
resonators.
<<<<<<<<<


I need to know what exactly is ceramic resonators?

Thanks in advance


s+

1998\04\14@121611 by technova

flavicon
face
Haile, Sam wrote:
>
> Hi all
> need help
> can any one of you explain this to me pls.
>
> >>>>
> Note that all that is required for assembly language programming is the MPLAB
> software package which is available for free from the Microchip home page
> and a PIC programmer, and of course some PIC16F84 and 4.0 MHz ceramic
> resonators.
> <<<<<<<<<
>
> I need to know what exactly is ceramic resonators?
>
> Thanks in advance
>
> s+
Ceramic resonators are actually a network of resistor and capacitor to
form a timing circuit. You can easily substitute a crystal of rhe same
frequency for the purpose. I've tried it and it works fine.

Regards,

Naresh

1998\04\14@161949 by XYGAX

picon face
In a message dated 14/04/98  16:02:50, you write:

<< I need to know what exactly is ceramic resonators? >>

Aint that an expensive bit of pottery whilst being hit with 2Lb hammer ???????

Sorry Humor is opperational........Steve........

No its like a crystal but generally less accurate and cheeper. Some of them
(Murata) have the capacitors built in to them and come with a centre leg for
the ground connection.

1998\04\14@201914 by john pearson

flavicon
face
At 04:59 PM 4/14/98 +0100, you wrote:
>Hi all
>need help
>can any one of you explain this to me pls.
>
>
>>>>>
>Note that all that is required for assembly language programming is the MPLAB
>software package which is available for free from the Microchip home page
>and a PIC programmer, and of course some PIC16F84 and 4.0 MHz ceramic
>resonators.
><<<<<<<<<
>
>
>I need to know what exactly is ceramic resonators?
>
>Thanks in advance
>
>
>s+
>
Ceramic resonators, like crystals and RC networks, connect to the pic to
provide timming and clocking pulses. These electrical pulses drive the pic
through its software instructions. Resonators are more accurate, but more
expenseive than rc networks; And they are less accurate but cheaper than
crystals (and maybe more reliable starting-up.)

1998\04\15@023046 by Leon Heller

flavicon
picon face
In message <Pine.ULT.3.91.980414165802.10792A-
spam_OUT100000TakeThisOuTspamserdlc30.essex.ac.uk>, "Haile, Sam" <.....shaileKILLspamspam@spam@ESSEX.AC.UK> writes
>Hi all
>need help
>can any one of you explain this to me pls.
>
>
>>>>>
>Note that all that is required for assembly language programming is the MPLAB
>software package which is available for free from the Microchip home page
>and a PIC programmer, and of course some PIC16F84 and 4.0 MHz ceramic
>resonators.
><<<<<<<<<
>
>
>I need to know what exactly is ceramic resonators?

In this context, ceramic resonators are piezo-electric devices that can
be used like quartz crystals. They aren't as stable as quartz, but are
cheaper. Some of them come packaged with capacitors, which saves some
space and assembly costs.

Leon
--
Leon Heller: leonspamKILLspamlfheller.demon.co.uk http://www.lfheller.demon.co.uk
Amateur Radio Callsign G1HSM    Tel: +44 (0) 118 947 1424
See http://www.lfheller.demon.co.uk/dds.htm for details of my AD9850
DDS system. See " "/diy_dsp.htm for a simple DIY DSP ADSP-2104 system.

1998\04\15@150744 by Harold Hallikainen

picon face
       There has been quite a discussion on ceramic resonators over the
past year.  My experience is that those from muRata with built in
capacitors work well with a 16c74a operating at 16 MHz.  The similar
units from Integrity Technology and ECS do not work reliably with this
chip at this frequency.  I had extensive conversations with all three
companies and with Microchip.  Microchip does not characterise the
oscillator circuit, so we are on our own to come up with a working
resonator (though they do list some muRata parts with external capacitors
in their databook).  Integrity and ECS say their parts work with a CMOS
inverter, so they are fine.  There appears to be no attempt by either of
these companies to make the devices work with the Microchip parts.  When
I spoke with muRata, they had received chips from Microchip and were
running tests on their resonators.  I did not wait for the test results,
but went with the standard muRata 16 MHz device with built in capacitors.
We'e now shipped at least 1,000 units with no problems.

Harold

_____________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com
Or call Juno at (800) 654-JUNO [654-5866]

More... (looser matching)
- Last day of these posts
- In 1998 , 1999 only
- Today
- New search...