Don't know if it's right place to post, but... I've designed a replacement for the AOUT_LC module, using two 4-channel 8-bit AD7226 DACs. They have parallel interface, so I used two shift registers (one per chip) and 2051 for addresing. It is supposed to work like this (I've made some minor changes to cv_aout_lc.inc): - Two shift registers are loaded - Values are latched into registers, and in the same tame, latch signal triggers interrupt on 2051 - 2051 latches values into DAC by setting !WR pin HIGH - 2051 increments DAC address - 2051 sets !WR LOW, enabling new voltage to be written in next channel - next two bytes are loaded into SR's... and so on But after what I've read in this topic, I've checked its accuracy, and with 8bits, +-LSB or +-2LSB is really bad for driving V/oct VCO in polysynth... :-/ Am I doomed to buy MAX525 or clone some 80's circuits with single 14bit DAC and S/H? Or are there other ways?