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WM8581 Datasheet(PDF) 57 Page - Wolfson Microelectronics plc

Part # WM8581
Description  Multichannel CODEC with S/PDIF Transceiver
PDF  100 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8581 Datasheet(HTML) 57 Page - Wolfson Microelectronics plc

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Production Data
WM8581
w
PD Rev 4.0 April 2007
57
PHASE-LOCKED LOOPS AND S/PDIF CLOCKING (HARDWARE MODE)
In hardware mode, the user has no access to the internal clocking control registers and hence a
default configuration is loaded at reset to provide maximum functionality.
The S/PDIF receiver is enabled and hence the PLLs operate in S/PDIF receiver mode and all PLL
and S/PDIF receiver control is fully automatic. All supported S/PDIF receiver sample rates can be
used.
FREQMODE_x and POSTSCALE_x control is fully automatic to ensure that the MCLK output is
maintained at 256fs relative to the S/PDIF received sample rate.
In hardware mode, the OSCCLK must be 12MHz and hence the external crystal (or applied XIN
clock) must be 12MHz. No other OSCCLK frequencies are supported in hardware mode.



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