SWP123 Presentation Switcher • Specifications
A-3
Output level .................................. TTL: 4 V to 5 Vp-p, unterminated
Input impedance .......................... 510 ohms
Output impedance ....................... 75 ohms
Max input voltage ........................ 5 Vp-p
Max. propagation delay .............. 8 ns
Max. rise/fall time ....................... 28 ns
Polarity .......................................... Positive or negative (follows input)
Audio — master
Gain ................................................ Unbalanced output: 0 dB; balanced output: +6 dB
Frequency response .................... 10 Hz to 175 kHz, -3 dB
20 Hz to 20 kHz, ±0.05 dB
THD + Noise ................................. <0.06% @ 1 kHz at nominal level
S/N ............................................... >87.0 dB at maximum output
Audio — individual audio groups (VGA, S-video, composite video)
Gain ................................................ Unbalanced output: 0 dB; balanced output: +6 dB
Frequency response .................... 10 Hz to 175 kHz, -3 dB
20 Hz to 20 kHz, ±0.05 dB
THD + Noise ................................. <0.03% @ 1 kHz at nominal level
S/N ............................................... >87.0 dB at maximum output
Crosstalk ....................................... <-89 dB @ 1 kHz
Stereo channel separation .......... >89 dB @ 1 kHz
CMRR ............................................ >60 dB @ 20 Hz to 20 kHz
Audio input — individual audio groups (VGA, S-video, composite video)
Number/signal type ................... 4 sets of stereo, unbalanced inputs per group (12 inputs total)
Connectors ................................... 4 pairs of female RCA connectors per group
Impedance .................................... >20k ohms unbalanced, DC coupled
Nominal level ............................... -10 dBV (316 mV)
Maximum level ............................ +18 dBu, (balanced or unbalanced) at 1%THD+N
Input gain
Input to Master output ... -64 dB to 0 dB, adjustable per input
Input to group output ..... Unity
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu
Audio output — individual audio groups (VGA, S-video, composite video)
Number/signal type ................... 1 passive, local, stereo, balanced/unbalanced per each group
Connectors ................................... (1) 3.8 mm captive screw connector, 5 pole, per each group
Impedance .................................... 50 ohms unbalanced, 100 ohms balanced
Gain error ..................................... ±0.01 dB channel to channel
Maximum level (Hi-Z) ................ >+24 dBu, balanced at 1%THD+N
Maximum level (600 ohm) ......... >+18 dBm, balanced at 1%THD+N
Microphone input
Number/type .............................. 1 mono, balanced
Connectors ................................... 1 XLR female
Impedance .................................... 1.8k ohms, balanced/unbalanced
Nominal level ............................... -48 dBV (1 mV)
Minimum level ............................. -72 dBV (0.25 mV)
