CS8420-DSR Cirrus Logic Inc, CS8420-DSR Datasheet - Page 14
![Audio DSPs IC Digital Audio Sample Rate Convertr](/photos/16/2/160240/soic-28_sml.jpg)
CS8420-DSR
Manufacturer Part Number
CS8420-DSR
Description
Audio DSPs IC Digital Audio Sample Rate Convertr
Manufacturer
Cirrus Logic Inc
Datasheet
1.CS8420-CSZ.pdf
(94 pages)
Specifications of CS8420-DSR
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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14
4.
The CS8420 can be configured for nine connectivity alternatives, referred to as data flows. Each data flow has an
associated clocking set-up.
the switches. This drawing only shows the audio data paths for simplicity.
and the associated control register bits. The clock routing constraints determine which data routing options are ac-
tually usable.
*Note: When SWCLK mode is enabled, signal input on OMCK is only output through RMCK and not
routed back through the RXD1 multiplexer; RMCK is not bi-directional in this mode.
DATA I/O FLOW AND CLOCKING OPTIONS
ISCLK
ILRCK
RMCK
SDIN
RXP
ILRCK
ISCLK
SDIN
RXN
RXP
0
1
MUX
SERIAL
1
AUDIO
INPUT
MUX
Receiver
Serial
Audio
Input
AES3
RXD0
0
Figure 6
Figure 6. Software Mode Audio Data Flow Switching Options
PLL
shows the data flow switching, along with the control register bits which control
SRCD
RMCKF
UNLOCK
SWCLK
0
1
MUX
÷
SIMS
Figure 7. CS8420 Clock Routing
RXD1
Sample
Rate
Converter
1
MUX
0
INC
TXD1-0
CONVERTER
SPD1-0
SAMPLE
CHANNEL
MEMORY
MEMORY
RATE
STATUS
USER
BIT
AES3
Encoder
Figure 7
1
CLK[1:0]
MUX
AESBP
0
shows the internal clock routing
Serial
Audio
Output
TRANSMIT
OUTPUT
SERIAL
AUDIO
TXOFF
AES3
OUTC
÷
OLRCK
OSCLK
SDOUT
TXP
TXN
OMCK
SDOUT
OSCLK
OLRCK
TXN
TXP
CS8420
DS245F4
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