The requested file:
https://pdf.datasheetcatalog.com/datasheets/320/37385_DS.pdf
is the data sheet for the following electronic components:

Burr Brown

#	Part Name	Description
1	PCM2904	STEREO AUDIO CODEC WITH USB INTERFACE SINGLE ENEDE ANALOG INPUT/OUTPUT AND S/PDIF
2	PCM2904DB	STEREO AUDIO CODEC WITH USB INTERFACE SINGLE ENEDE ANALOG INPUT/OUTPUT AND S/PDIF
3	PCM2904DBR	STEREO AUDIO CODEC WITH USB INTERFACE SINGLE ENEDE ANALOG INPUT/OUTPUT AND S/PDIF
4	PCM2906	STEREO AUDIO CODEC WITH USB INTERFACE SINGLE ENEDE ANALOG INPUT/OUTPUT AND S/PDIF
5	PCM2906DB	STEREO AUDIO CODEC WITH USB INTERFACE SINGLE ENEDE ANALOG INPUT/OUTPUT AND S/PDIF
6	PCM2906DBR	STEREO AUDIO CODEC WITH USB INTERFACE SINGLE ENEDE ANALOG INPUT/OUTPUT AND S/PDIF

Select the part name and then you can download the datasheet in PDF format.