Adc Modul; Power Supply - RME Audio OctaMic User Manual

4.2 ADC Modul

AES Input
1 x XLR via 25 pin D-sub, transformer balanced, ground-free, according to AES3-1992
High-sensitivity input stage (< 0.3 Vss)
SPDIF compatible (IEC 60958)
Lock range: 27 kHz – 200 kHz
Jitter when synced to input signal: < 2 ns
Wordclock Input
BNC, not terminated (10 kOhm), switch for internal termination 75 Ohm
Automatic Double/Quad Speed detection and internal conversion
AC-coupling, not effected by DC-offsets within the network
Signal Adaptation Circuit: signal refresh through auto-center and hysteresis
Overvoltage protection
Level range: 1.0 Vss – 5.6 Vss
Lock range: 27 kHz – 200 kHz
Jitter when synced to input signal: < 2 ns
AES/EBU Outputs
4 x via 25 pin D-Sub, transformer balanced, ground-free, according to AES3-1992
Output voltage Professional 4.5 Vss, Consumer 2.1 Vss
Format Professional according to AES3-1992 Amendment 4
Format Consumer (SPDIF) according to IEC 60958
Single Wire: 4 x 2 channels 24 bit, up to 96 kHz
ADAT Optical
2 x TOSLINK
Standard: 8 channels 24 bit, up to 48 kHz
Sample Split (S/MUX): 2 x 8 channels 24 bit / 48 kHz, equalling 8 channels 24 bit 96 kHz

5. Power Supply

In order to make operating the OctaMic as flexible as possible, the unit contains a switching
regulator of the latest technology, which not only has a high efficiency (> 90%), but also pre-
vents internal hum noise by operating at 150 kHz. Another advantage: the OctaMic accepts any
power supply with voltages between 8 and 28 V DC, no matter which polarity, and even be-
tween 8 and 20 V AC. Given the power supply can deliver the current needed.
The supplied high-quality switching power supply, 12 V / 1.25 A, not only accepts any mains
voltage between 100 V and 240 V (usable world-wide), but is also fully regulated against volt-
age fluctuations. Additionally it only weighs 150 g in spite of its high power of 15 Watts.
The large voltage range of the OctaMic also allows for the use of a rechargeable lead-battery
instead of a power supply, for completely independent mobile operation. A matching connec-
tion cable (power jack to terminals 6.3 mm) is available from RME. A Panasonic LC-
R122R2PG battery, 12 V 2.2 Ah, can operate the OctaMic for 2 hours.
User's Guide OctaMic © RME
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