I am using the CS8405 to generate the S/PDIF bitstream that Dave suggested. I see from several sources that a transformer on the output is not required, but is recommended for the consumer version of the digital audio interface (S/PDIF). Do you guys who have done this before, generally put a transformer on the output? If so, can you recommend a source for one? I have been searching digikey, and have not been able to find a small, inexpensive, 1:1 transformer. Thanks, --BobG -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dave Tweed Sent: Monday, August 26, 2002 6:37 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [EE]: SPDIF output advice "Robert E. Griffith" wrote: > I have an audio project that currently uses a CS4334 DAC to provide L/R > analog audio outputs from a digital I2S audio stream (from a STA013 mp3 > decoder). I am trying to research SPDIF digital audio to see if I could > support it as well. I have been googling for a while, but have not found > any information on the physical line driving for SPDIF. > > Does anyone know of any good links for SPDIF digital audio? > > Does anyone know if there are line driver chips for SPDIF? Or, is it simple > enough that it is done with discrete components? If you've got I2S, the Cirrus/Crystal chips are a popular way to get AES/EBU or S/PDIF. See http://www.cirrus.com/design/products/index.cfm?c=12 The CS8405 is just a transmitter/driver. The CS8420 is a much more powerful chip with a driver, a receiver and a sample rate converter that can be combined in various ways. -- Dave Tweed -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body