Digiface USB Input Optical ADAT / SPDIF 4 x TOSLINK, format according to Alesis specification SPDIF compatible (IEC 60958) Standard: 32 channels 24 bit, up to 48 kHz Double Speed (S/MUX): 16 channels 24 bit 96 kHz Quad Speed (S/MUX4): 8 channels 24 bit 192 kHz Bitclock PLL ensures perfect synchronisation even in varispeed operation Lock range: 31.5 kHz – 50 kHz Jitter when synced to input signal: 100 dB Output: 6.3 mm TRS jack, unbalanced Output impedance: 2 Ohm Output level at 0 dBFS, 1 kOhm load: +9.5 dBu Max power @ 0.1% THD: 50 mW Digital Clocks: Internal, ADAT In, SPDIF In Low Jitter Design: < 1 ns in PLL mode, all inputs Internal clock: 800 ps Jitter, Random Spread Spectrum Jitter suppression of external clocks: > 30 dB (2.4 kHz) Effective clock jitter influence on AD and DA conversion: near zero PLL ensures zero dropout, even at more than 100 ns jitter Supported sample rates: 28 kHz up to 200 kHz General Power supply: USB bus power Typical power consumption: 1.2 Watts Current at 5 V bus power operation: 230 mA Max power consumption: below 2 Watts Dimensions (WxHxD): 128 x 22 x 55 mm (5.04" x 0.87" x 2.2") Weight: 220 g (0.49 lbs) Temperature range: +5° up to +50° Celsius (41° F up to 122°F) Relative humidity: < 75%, non condensing