Cirrus Logic CS8420 - Manual (Page 27)

DS245F4 27
CS8420
SRC
AES3
Receiver AES3
Transmitter
PLL
In Out A A A A
B B B B
96kHz stereo
96kHz frame rate
256x96kHz
96kHz stereo
96kHz frame rate
96kHz
Fsi 96kHz
Fso
OMCK (256, 384, or 512x 96kHz)
SRC
AES3
Receiver AES3
Transmitter
PLL (x2)
In Out A A A A
B B B B
96kHz mono
48kHz frame rate
256x96kHz
96kHz mono
48kHz frame rate
96kHz
Fsi 96kHz
Fso
OMCK (256, 384, or 512x 96kHz)
*
+
A & B sub-frames data are time-multiplexed
into consecutive samples Consecutive samples are alternately routed
to A & B sub-fames * +
RECEIVER
MONO MODE
RECEIVER
STEREO MODE
MMTLR
TRANSMITTER
STEREO MODE
TRANSMITTER
MONO MODE
A1 B1
Outgoing
AES3
SRC Aout
SRC Bout
A1
B1
A2
B2
STEREO
MONO
Frame
A2 B2
Outgoing
AES3
A selected
Outgoing
AES3
B selected
A1 A2
B1 B2
Frame
TRANSMITTER TIMING
Figure 21. Mono Mode Operation Compared to Normal Stereo Operation
A1 B1 A2 B2
Incoming
AES3
SRC Ain
SRC Bin
Ain & Bin
SRC
A1
A1
B1
B1
A2
B2
A2 B2
STEREO
MONO
Frame
RECEIVER TIMING