At 08:49 AM 4/15/97 -0400, you wrote:
>THEREFORE -- If I'm going to continue on this tack, I need a clock
>multiplier to hang on the output of the PIC to boost up the frequency
>a bunch (several clock doublers ??). Any good ideas here?
>
Hi Steve,
        Why don't you change your design and use another way to generate
clock for the switched cap filter? You can use Motorola MC145162 universal
dual
PLL, you only use this chip to divide crystal clock(5MHz or others) into the
switch cap filter clock, for a 150000Hz clock, use 5MHZ/33=150KHz. since
the MC145162 is a dual PLL, so you can use it to generate two different
clock for different filter frequencies  :) The price for MC145162 is about
1.5 US$ each for QTY 25. It is SPI compatible, friendly to PIC. More info,
you can check the Motorola web, there is a PDF data sheet upon MC145162.



Jerry Meng, BA1FB

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