CM6571 Datasheet, PDF (4/63 Pages) C-Media Electronics – USB 2.0 full speed-compliant

CM6571
USB Audio Sound Chip
8.7.1
SPDIF frame description......................................................................................... 39
8.7.2
SPDIF out channel status ........................................................................................ 40
9 DSP function description .................................................................................................................... 41
9.1 Operation modes ........................................................................................................................... 41
9.2 Mode state diagram and power management................................................................................ 42
9.3 Recommended control methods for DSP core .............................................................................. 44
9.3.1 scenario I .............................................................................................................................. 44
9.3.2 scenario II............................................................................................................................. 45
9.3.3 scenario III ........................................................................................................................... 46
9.4 Power level description table of DSP ........................................................................................... 47
10 Electrical characteristics.............................................................................................................. 48
10.1
Absolute maximum ratings ............................................................................................. 48
10.2
Recommended operation conditions...............................................................................48
10.3
Power consumption.........................................................................................................48
10.4
DC characteristics ........................................................................................................... 48
10.5
Audio performance ......................................................................................................... 49
10.5.1
DAC audio quality .................................................................................................. 49
10.5.2
ADC audio quality .................................................................................................. 54
10.5.3
A-A path audio quality............................................................................................ 60
10.5.4
DSP audio quality ................................................................................................... 62
11Package dimensions ............................................................................................................................ 63
Revised: Nov. 2012
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