I put together PCM2912A and TPA2008, USB to Class D Audio. I have duplicated the PCM2912A circuit as shown in SLES230-SEPT 2008 AND sba141 guide. When plugged into my USB port, not recognized because it is not downloading the driver. Tried The DEM PCM2912 and is recognized. That is connected to TPA2008D2.into 4 OHM SPEAKER fidelity is bad and sound is low.
referring to schematic page 26 sles230. I had 10 mfd for c6 on my board. changed to 3.3 MFD increased R! and R2 from 22 to 33 ohms. D+ reads 3.10 VOLTS and D- reads 0 volts . pin 29 /SSPND reads 0 volts. WHAT DO YOU SUGGEST
