User`s guide

User’s Guide Micstasy © RME
15
8.2 Clock Section
The source and frequency of the unit's clock is configured in the CLOCK SECTION. The button
CLOCK lets you step through the options external clock (Word, AES, Option = MADI) and inter-
nal clock. The button SAMPLE RATE sets the sample rate for both external and internal clock.
WCK, AES, OPTN (Slave Mode)
Defines the corresponding input as clock reference. A missing or invalid clock source signal is
indicated by flashing of the corresponding LED.
INT (Master Mode)
Activates the internal clock.
With a setting of INT (internal clock) it is mandatory that the clock rate of the sources is syn-
chronous to the Micstasy. Therefore the external device has to be synchronized to the Mic-
stasy word clock output or AES/ADAT/MADI output.
The Micstasy thus has to be master, all devices connected to it must be slave. In order to avoid
clicks and drop outs due to faulty or missing synchronicity, a special process called SyncCheck
compares the incoming data and the Micstasy internal clock. The SYNC state is indicated by a
flashing (error) or turned off (OK) LED.
44.1, 48
Activates the internal clock at 44.1 kHz or 48 kHz.
DS, QS
With the DS LED additionally lit, the sample rate will be 88.2 or 96 kHz, with QS lit it will be
176.4 or 192 kHz.
A selection of DS and QS is also possible when using external clock (Slave). If the Micstasy
should operate at 192 kHz, but receives a synchronous word clock of 48 kHz, the button
SAMPLE RATE allows to activate DS or QS mode. This way, AD-conversion and digital outputs
are configured to operate in the frequency ranges Single Speed, Double Speed or Quad Speed.
Single Speed
All outputs carry a signal in the range of 32 kHz up to 48 kHz.
DS (Double Speed)
The AES outputs 1-8 carry a signal in the range of 64 kHz up to 96 kHz. ADAT and MADI stay
at no higher than 48 kHz, with the data transmitted in the S/MUX format.
QS (Quad Speed)
The AES outputs 1-8 carry a signal in the range of 176.4 kHz up to 192 kHz. ADAT and MADI
stay at no higher than 48 kHz, with the data transmitted in the S/MUX4 format. Therefore ADAT
is limited to 4 channels (2 per optical output) in this mode.
8.3 Analog Out
The button ANALOG OUT is used to set the analog reference level at the analog outputs. This
level is reached at full scale of the AD-converters, thus matching the front panel level meters
level indication.
Reference 0 dBFS @ Analog Headroom
+24 +24 dBu 3 dB
+19 +19 dBu 8 dB
+13 +13 dBu 14 dB