Hi.
i've just build a usb-dac using pcm2702e and am having problems connecting it to the pc. the first time i done it it was found and then the chip over heated. the second time (new chip) it flashed as unknown device.
i have checked the voltages on the pins, 3.3 and 5v and all are correct. im using 2937et-3.3 for 3.3v regulator and lm7805 for the 5v regulator.
i will upload a schematic and eagle layout soon.
has anyone had a similar problem and it so, how was it fixed?
cheers
i've just build a usb-dac using pcm2702e and am having problems connecting it to the pc. the first time i done it it was found and then the chip over heated. the second time (new chip) it flashed as unknown device.
i have checked the voltages on the pins, 3.3 and 5v and all are correct. im using 2937et-3.3 for 3.3v regulator and lm7805 for the 5v regulator.
i will upload a schematic and eagle layout soon.
has anyone had a similar problem and it so, how was it fixed?
cheers