Re: Chip like LTC1799
From: Ken Smith (kensmith_at_green.rahul.net)
Date: 02/20/05
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Date: Sun, 20 Feb 2005 03:50:49 +0000 (UTC)
In article <4217F489.906C4CA1@rica.net>,
John Popelish <jpopelish@rica.net> wrote:
>DaveC wrote:
>(snip)
>>... I'm clocking a
>> DAC & ADC so need mark/space within 40-60% and frequency between 20kHz &
>> 800kHz
>
>Does this mean that any frequency between 20 kHz and 800 kHz will do
>if the symmetry stays between 40-60%, or must that symmetry hold while
>the frequency is adjusted, continuously between these limits?
How about:
A CD4060 / HC4060
IIRC the oscillator part of the LT1054 runs at about 30KHz. You can
combine the oscillator with another useful circuit.
A TICPAL22V10Z could make the oscillator and divide by two with some extra
sections to make other glue logic.
-- -- kensmith@rahul.net forging knowledge
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