CS8420-CS Cirrus Logic Inc, CS8420-CS Datasheet - Page 25

• Manufacturer Part Number: CS8420-CS
• Description: Transceiver IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS8420-CS

• Audio Control Type: Sample Rate Converter
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: -10°C To +70°C
• Audio Ic Case Style: SOIC
• No. Of Pins: 28
• Msl: MSL 2 - 1 Year
• Frequency Max: 108GHz
• Bandwidth: 20kHz
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

run at a frame rate of Fsi/2, and the serial audio out-
put port will run at Fsi. Identical data will appear in
both left and right data fields on the SDOUT pin.
For the serial audio input port to AES3 transmitter
data flow, in transmitter mono mode, then the input
DS245PP2
Incoming
AES3
SRC Ain
SRC Bin
Ain & Bin
SRC
RECEIVER TIMING
96kHz stereo
96kHz frame rate
96kHz mono
48kHz frame rate
*
STEREO
MONO
A1
A & B sub-frames data are time-multiplexed
into consecutive samples
Frame
Figure 23. Mono Mode Operation Compared to Normal Stereo Operation
B1
A1
RECEIVER
STEREO MODE
RECEIVER
MONO MODE
AES3
Receiver
AES3
Receiver
A2
B1
A1
B1
PLL (x2)
B2
PLL
A2
A
B
A
B
B2
*
A2
B2
A
B
256x96kHz
A
B
256x96kHz
96kHz
Fsi
96kHz
Fsi
In
In
SRC
SRC
96kHz
Fso
96kHz
Fso
port will run at Fso audio sample rate, while the
AES3 transmitter frame rate will be at Fso/2. The
data from either consecutive left, or right, positions
will be selected for transmitting in A and B sub-
frames.
Out
Out
+
Outgoing
AES3
A selected
Outgoing
AES3
B selected
SRC Aout
SRC Bout
Consecutive samples are alternately routed
to A & B sub-fames
Outgoing
AES3
A
B
A
B
MMTLR
OMCK (256, 384, or 512x 96kHz)
TRANSMITTER
STEREO MODE
OMCK (256, 384, or 512x 96kHz)
+
TRANSMITTER
MONO MODE
A
B
A
B
STEREO
MONO
AES3
Transmitter
AES3
Transmitter
TRANSMITTER TIMING
A1
B1
96kHz stereo
96kHz frame rate
96kHz mono
48kHz frame rate
A1
Frame
A2
B2
A1
B1
B1
Frame
A2
A2
B2
CS8420
B2
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