Corey,

Thanks for the feedback -- unfortunately the 33000 series doesn't have a REC
pin. All commands are sent to the 33000 using an SPI interface. That was one
advantage (or so I had supposed) for choosing the 33000 -- I assumed it
would be less suseptible to "glitches" like this, since you have to send a
complete 8- or 16-bit command over the SPI to get it to perform an
operation.

Mark

-----Original Message-----
From: Corey Drechsler <drechc@RPI.EDU>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Monday, January 18, 1999 12:57 PM
Subject: Re: [OT] ISD33000 Wierdness


>I haven't used the 33000 series, but when I was using the 1200 series of
>the ISD chips, there was a note in the data sheet about the possibility
>if this happening if the power supply voltage rose faster than  the
>voltage on the record enable pin....  They suggested using a 0.001uF
>capcitor in parallel with a 100k resistor connected to the REC pin.  You
>might want to try something like that if you haven't already...
>
>Corey Drechsler