CM6502B Datasheet, PDF (28/40 Pages) C-Media Electronics – USB Audio Sound Chip

CM6502 / CM6502B
USB Audio Sound Chip
7.6 SPDIF Control Description
7.6.1 SPDIF Frame Description
 Audio format : linear 16 bit default.
 Allowed sampling frequencies (Fs) of the audio:
 44.1kHz from CD
 48 kHz from DAT
 32 kHz from DSR
 One way communication: from a transmitter to a receiver.
 Control information:
 V (validity) bit : indicates if audio sample is valid.
 U (user) bit : user free coding i.e. running time song, track number.
 C (channel status) bit : emphasis, sampling rate and copy permit.
 P (parity) bit : error detection bit to check for good reception.
 Coding format: biphase mark except the headers (preambles), for sync purposes.
 Bandwidth occupation : 100kHz up to 6Mhz (no DC!)
 Signal bitrate is 2.8Mhz (Fs=44.1kHz), 2Mhz (Fs=32kHz) and 3.1Mhz (Fs=48kHz).
www.cmedia.com.tw
Copyright © C-Media Electronics Inc.
Rev. 1.02 ︱ Page 28