tap digital signal on Denon AVR2809 receiver' CPLD for external DAC
In order to take advantage of AVR2809's integrated Audissey room correction feature on a stereo system, and to avoid Denon's internal DAC, I am foreseeing to tap of the digital signal on the Altera Max II epm240t before it goes to the DSD1608 DAC, and feed a coax S/PDIF link with it (or optical if easier)
Max II logic works with 3.3 V levels.
How should I do that ? There is presently a serial 100 ohms resistor in the link between the 2 chips.
Of course all that is in 0.65mm pitch SMD.... and makes things a bit difficult !
Any advice ?
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