Sync; Sync Advanced Settings - Apogee ROSETTA 800 User Manual

ROSETTA 800 – User's Guide
Navigating the Front Panel -
3) SYNC – When SAMPLE RATE is set to EXT, the SYNC parameter
determines the source of the unit's clock.
• ADAT – clock is derived from the ADAT input 1-8 with a resultant sample
rate in the 44.1-48kHz range.
• ADAT + S/MUX – clock is derived from S/MUX Input 1-4 with a resultant
sample rate in the 88.2-96kHz range.
• OPTION – clock is derived from the Option Card input.
• AES – the AES input is scanned and clock is derived from the first valid
AES signal found. The signal is treated as Single wire format.
• AES + DW - the AES input is scanned and clock is derived from the first
valid AES signal found. The signal is treated as Double wire format.
• WC – clock is derived from the Word Clock In connector.

SYNC Advanced settings:

The Rosetta 800 may be configured to accommodate digital systems whose
word clock signals run at a multiple of the sample rate frequency.
1) To configure the Rosetta 800 to sync to a word clock input of one
frequency while running at a sample rate whose frequency is a multiple of the
word clock:
1) Connect the word clock signal to the Word Clock In and set SYNC
to WC.
2) Press and hold the SYNC button to determine the current "target"
sample rate range.
3) While pressing the SYNC button, press the SAMPLE RATE button
to toggle through the possible "target" ranges. For example, to
sync the Rosetta 800 to a 44.1kHz Word Clock input while running
at 88.2kHz, maintain the SYNC button depressed while pressing
the SAMPLE RATE button the until both the 88.2 and 96 LEDs
light.
2) To configure the Rosetta 800 to sync to another source (internally or other
SYNC values besides WC) and output a Word Clock signal whose frequency
is a multiple of the sample rate frequency:
1) Set the unit to the desired clock source and sample rate
2) Press and hold the SYNC button to determine the current Word
Clock Output frequency range.
3) While pressing the SYNC button, press the SAMPLE RATE
button to toggle through the possible ranges. For example, to run
the Rosetta 800 at an 88.2kHz sample rate while outputting a
44.1kHz word clock, set the SAMPLE RATE to 88.2, maintain the
SYNC button depressed while pressing the SAMPLE RATE button
until both 44.1 and 48 LEDs light.
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5) If no Option card is present,
the Option value may not be
selected.
6) When clocking to an AES
input, the AES format must be
specified by selecting a SYNC
value of either AES or AES + DW, not via
the SAMPLE RATE Advanced settings.
7) The Word Clock Out will
always be the same frequency
as the Word Clock In.
8) A different Word Clock
configuration may be set for
each sample rate range.