CS8420-CS Cirrus Logic Inc, CS8420-CS Datasheet - Page 45

• 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

12.4 Synchronization of Multiple CS8420s
The serial audio output ports of multiple CS8420s
can be synchronized by sharing the same master
clock, OSCLK, OLRCK, and RST line and ensur-
ing that all devices leave the reset state on the same
master clock falling edge. Either all the ports need
to be in slave mode, or one can be set as a master.
The AES3 transmitters may be synchronized by
sharing the same master clock, TCBL, and RST
signals, and all devices leave the reset state on the
same master clock falling edge. The TCBL pin is
used to synchronize multiple CS8420 AES3 trans-
mitters at the channel status block boundaries. One
DS245PP2
CS8420 must have its TCBL set to master; the oth-
ers must be set to slave TCBL. Alternatively,
TCBL can be derived from some external logic, in
which case all the CS8420 devices should be set to
slave TCBL.
12.5 Extended Range Sample Rate
For handling sampling rate conversion ratios great-
er than 3:1 or less than 1:3, the user can use a cas-
cade of two devices. The product of the conversion
ratio of the two devices should equal the target con-
version ratio.
Conversion
CS8420
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