5. Technical Specifications
5.1 Digital
General
? Clocks: Internal, MADI In, Word Clock In
? Low jitter design: < 1 ns in PLL mode, all inputs
? Internal clock: 800 ps jitter, random spread spectrum
? Jitter suppression of external clocks: about 30 dB (2.4 kHz)
? Effective clock jitter influence on AD and DA conversion: near zero
? Provides nearly jitter-free word clock directly from the MADI input signal
? Input PLL ensures zero dropout, even at more than 100 ns jitter
? Sample frequencies: 32 / 44.1 / 48 / 88.2 / 96 / 176.4* / 192* kHz
*Not yet supported
MIDI
? 2 x MIDI I/O via breakout cable
? 1 x MIDI I/O via MADI
? PCI bus based hi-speed operation
? Seperate 128 byte FIFO for input and output
? MIDI state machine in hardware for reduced interrupt request load
? Invisible transmission via User bit of channel 56 (up to 48 kHz)
? Invisible transmission via User bit of channel 28 (up to 96 kHz)
? Invisible transmission via User bit of channel 14 (up to 192 kHz)
5.2 Inputs
MADI
? Coaxial via BNC, 75 Ohm, according to AES10-1991
? High-sensitivity input stage (< 0.2 Vpp)
? Optical via FDDI duplex SC connector
? 62.5/125 and 50/125 compatible
? Accepts 56 channel and 64 channel mode, plus 96k and 192k Frame
? Single Wire: up to 64 channels 24 bit 48 kHz
? Double Wire: up to 32 channels 24 bit 96 kHz
? Quad Wire: up to 16 channels 24 bit 192 kHz
? Lock range: 25 kHz - 54 kHz
? Jitter when synced to input signal: < 1 ns
Word Clock
? BNC, not terminated (10 kOhm)
? Switch for internal termination 75 Ohm
? Automatic Double Speed detection and internal conversion to Single Speed
? SteadyClock guarantees super low jitter synchronization even in varispeed operation
? 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 Vpp
? Lock range: 27 kHz - 200 kHz
? Jitter when synced to input signal: < 1 ns
User?s Guide Hammerfall DSP MADI ? RME 5 |
ACEC
