Extron electronics MPX 423 A Instruções de Operação descarregar pdf (Página 51)

MPX 423 A • Reference Information

A-3

Nominal level ............................... 1 Vp-p for Y of component video and S-video, and for composite video

0.7 Vp-p for RGB

0.3 Vp-p for R-Y and B-Y of component video, and for C of S-video

Minimum/maximum levels

RGB/VGA outputs .......... 0.3 V to 1.5 Vp-p

S-video outputs ................ 0.4 V to 2.0 Vp-p

Composite video outputs 0.4 V to 2.0 Vp-p

Impedance .................................... 75 ohms

Return loss .................................... -40 dB @ 5 MHz

RGB/VGA inputs ............ <-40 dB @ 5 MHz

S-video inputs .................. <-30 dB @ 5 MHz

Composite video inputs.. <-30 dB @ 5 MHz

DC offset

RGB/VGA outputs .......... ±5 mV with input at 0 offset

S-video outputs ................ 1.5 V with input at 0 offset

Composite video outputs 1.5 V with input at 0 offset

Switching type (S-video and/or composite video)

Vertical interval

Sync

Input type (RGB/VGA group) .. RGBHV, RGBS, RGsB, RsGsBs

Output type (RGB/VGA group) RGBHV, RGBS, RGsB, RsGsBs (follows input)

Standards ...................................... NTSC 3.58, NTSC 4.43, PAL, SECAM

Input level ..................................... 1.9 V to 5.0 Vp-p

Output level.................................. TTL: 5.0 Vp-p, unterminated

Input impedance .......................... 510 ohms

Output impedance....................... 75 ohms

Max input voltage ....................... 5.0 Vp-p

Max. propagation delay ............. 30 ns

Max. rise/fall time ....................... 4.2 ns

Polarity .......................................... Positive or negative (follows input)

Audio

Routing .......................................... 12 x 2 stereo matrix switcher

Gain ............................................... Unbalanced output: -6 dB; balanced output 0 dB

Frequency response ..................... 20 Hz to 20 kHz, ±0.05 dB

THD + Noise ................................ 0.03% @ 1 kHz, 0.3% @ 20 kHz at nominal level

S/N ................................................ >90 dB, output 21 dBu, balanced, at maximum output (unweighted)

Crosstalk ....................................... <-120 dB @ 1 kHz, fully loaded

Stereo channel separation .......... >80 dB @ 1 kHz

CMRR ............................................ >75 dB @ 20 Hz to 20 kHz

Volume range ............................... -98 dB to 0 dB (volume numbers 0 to 64 in 1.0 dB steps)

Full attenuation is volume level 0, -98 dB. The default for output 1 is -15 dB, volume level 50.

Audio input

Number/signal type ................... 12 stereo, balanced/unbalanced

Connectors .................................... (12) 3.5 mm captive screw connectors, 5 pole

Impedance .................................... >25k ohms unbalanced, 50k ohms balanced, DC coupled

Nominal level ............................... -10 dBV (316 mVrms)

1 2 ... 46 47 48 49 50 51 52 53 54 55 56

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Extron electronics MPX 423 A Instruções de Operação Página 51

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