Cirrus-logic CS8427 Manuel d'utilisateur Page 21

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Vue de la page 20
CS8427
DS477F5 21
AES3
Encoder
&Driver
Serial
Audio
Output
OLRCKOSCLKSDOUT
TXP
TXN
PLL
RMCK
TXD1-0:
SPD1-0:
OUTC:
INC:
RXD1-0:
01
10
1
0
01
Clock Source Control BitsData Flow Control Bits
AES3
Rx &
Decode
RXP
RXN
Serial
Audio
Input
ILRCK
ISCLKSDIN
Figure 9. AES3 Input to Serial Audio Output,
Serial Audio Input to AES3 Out
NOTE: Applications implementing both the Seri-
al Audio Output Port and the AES3 Transmitter
must operate at the same sample rate because
they are both controlled by the same clock
source.
OMCK
TXD1-0:
SPD1-0:
OUTC:
INC:
RXD1-0:
01
01
0
1
00
Clock Source Control BitsData Flow Control Bits
AES3
Rx &
Decode
I LRCK
ISCLK
SDIN
TXP
TXN
Serial
Au
d
io
In
p
ut
Figure 11. Input Serial Port to AES3 Transmitter
without PLL
Serial
Audio
Output
OLRCK
OSCLK
SDOUT
PLL
RMCK
TXD1-0:
SPD1-0:
OUTC:
INC:
RXD1-0:
10
10
1
0
01
Clock Source Control BitsData Flow Control Bits
AES3
Rx &
Decode
RXP
RXN
TXOFF :
1
Figure 10. AES3 Input to Serial Audio Output Only
RMCK
TXD1-0:
SPD1-0:
OUTC:
INC:
RXD1-0:
01
01
1
0
00
Clock Source Control BitsData Flow Control Bits
AES3
Rx &
Decode
ILRCK
ISCLK
SDIN
TXP
TXN
Serial
Au
d
io
In
p
ut
PLL
Figure 12. Input Serial Port to AES3 Transmitter
with PLL
NOTE: In this mode, ILRCK and ISCLK are
inputs only.
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