CS4218 Datasheet, PDF (19/44 Pages) Cirrus Logic – 16-Bit Stereo Audio Codec

CS4218
FRAME n
128 SCLK Periods
FRAME (n+2)
FRAME (n+3)
Sub-frame 1
Sub-frame 2
Sub-frame 1
Sub-frame 2
Sub-frame 1
Word A Word B Word A Word B Word A Word B Word A Word B Word A Word B
DATA
SSYNC
MF8: MF7: Sub-
SFS2 SFS1 frame
1 01
1 12
DATA
FRAME n
64 SCLK Periods
FRAME (n+1)
FRAME (n+2)
FRAME (n+3)
FRAME (n+4)
Sub-frame 1
Sub-frame 1
Sub-frame 1
Sub-frame 1
Sub-frame 1
Word A Word B Word A Word B Word A Word B Word A Word B Word A Word B
SSYNC
MF8: MF7: Sub-
SFS2 SFS1 frame
0 01
FRAME n
64 SCLK Periods
FRAME (n+1)
FRAME (n+2)
FRAME (n+3)
FRAME (n+4)
DATA
Sub-frame 1
Sub-frame 1
Sub-frame 1
Sub-frame 1
Sub-frame 1
Word A Word B Word A Word B Word A Word B Word A Word B Word A Word B
MF8: MF7: Sub-
SFS2 SFS1 frame
0 11
SSYNC
Figure 14. SM3-M and SM3-MM Sub-Modes.
SCLK
SDIN
SDOUT
SSYNC
(MF7:SFS1=0)
SSYNC
(MF7:SFS1=1)
DS135F1
MSB
Word A
32 CLOCKS
LSB MSB
LSB
Word B
32 CLOCKS
Figure 15. Detailed SM3-M and SM3-MM Sub-Modes, 64 BPF.
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