Configuring The S/Pdif Outputs - Mutec iD Operating Manual

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A N H A N G
A N H A N G
A N H A N G
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Is the AES/EBU input feeded by a S/PDIF
clock signal, a format and electrical conver-
sion will be done automatically to supply a
standard-compliant signal at the AES/EBU
outputs.
If the consumer format is selected, the
physical parameters of the output terminals
(balanced operation, level, and impedance)
will remain unchanged!
Due to the internal signal phase corrections
the synthesizer can re-lock temporarily
when switching S/PDIF clock frequencies.
This does not affect the output signals or
functionality of iD.
During DISTRIBUTOR operation,
!
S/PDIF rates are set dependently of
externally applied clocks!
Example
An externally applied reference clock of
48.0k forces the S/PDIF outputs to clock
rates with a basis rate of 48.0k - whereas an
individually adjusted multiplier and divider
is furthermore active!
Input clock rate:
S/PDIF outputs:
After an input reference change:
Input clock rate:
S/PDIF outputs:
DIST does not provide redundancy for the
S/PDIF outputs. If the external S/PDIF or
AES/EBU clock source fails, the S/PDIF
outputs will fail, too!
Is the S/PDIF input feeded by an AES/EBU
clock signal, a format and electrical conver-
sion will be done automatically to supply
a standard-compliant signal at the S/PDIF
outputs.
If the professional format is selected,
the physical parameters of the output
terminals (unbalanced operation, level, and
impedance) will remain unchanged!
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20
48.0k
96.0k
44.1k
88.2k
WORDL
(function)
WORD LENGTH This function allows for changing the word length stored in
the channel status bits (byte 2, bits 3, 4 and 5) of the clear-frame signal of
the selected AES/EBU output pair. The factory default is 24BITs.
16BITs, 18BITs, 20BITs, 24BITs
One of four word lengths between 16 and 24Bits are available for selection.
FORMAT
(function)
FORMAT This function allows for altering the AES/EBU format stored in the
channel status bits (byte 0, bit 0) of the blank frame signal of the selected
AES/EBU output pair. The factory default is PROF.
PROF, CONS
(setting)
PROF, CONS This setting allows for toggling the AES/EBU blank frame signal
between consumer (CONS) and professional (PROF) formats.

Configuring the S/PDIF Outputs

A clock rate can be set for both S/PDIF outputs similarly. In addition, two
important channel-status bits can be modified.
S / P D I F F R E Q
|
4 4 . 1 k
S/PDIF outputs page
FREQ
(function)
FREQUENCY Sets the clock rate of the S/PDIF outputs. A so-called S/PDIF
clear frame signal (in compliance with AES11) is generated. This signal
does not contain any audio information (data bits). The factory default is
44.1kHz.
16.0...192.0kHz
(setting)
Altogether twelve different clock rates between 16.0 kHz and 192.0 kHz
can be selected. Refer to the »Synchronizable and Generatable Clock Rates«
section in the appendix for a full list of all clock rates.
DIST
(setting)
DISTRIBUTION This setting allows for forwarding an input S/PDIF or
AES/EBU clock signal to the S/PDIF output pair using a hardware bypass.
As no adjustments can be made in this mode, the other functions and
parameters will be hidden. The parameters and functions can only be
accessed after the internal S/PDIF generator has been enabled by selecting
a different clock rate.
In this mode, the synthesizer synchronizes to the input S/PDIF or AES/EBU si-
gnal. Thus, the video and audio clock signals provided at the other outputs
are linked with phase lock to the input signal.
OFF
(setting)
OFF disables the AES/EBU outputs if not needed.
WORDL
(function)
WORD LENGTH This function allows for changing the word length stored in
the channel status bits of the S/PDIF clear-frame signal.
The factory default is 24BITs.
16BITs, 18BITs, 20BITs, 24BITs
One of four word lengths between 16 and 24Bits are available for selection.
FORMAT
(function)
FORMAT This function allows for altering the S/PDIF format stored in the
channel status bits (byte 0, bit 0) of the S/PDIF blank frame signal. The
factory default is CONS.
PROF, CONS
(setting)
PROF, CONS This setting allows for toggling the S/PDIF blank frame signal
between consumer (CONS) and professional (PROF) formats.
(setting)
W O R D L F O R M A T
2 4 B I T C O N S
(setting)
88