Extron electronic MAV 44 Series ユーザーズマニュアル

MAV 44 AV, MAV 44 AV RCA, MAV 84 AV, MAV 84 AV RCA

4 composite video

MAV 44 SVA, MAV 44 SVA RCA, MAV 84 SVA, MAV 84 SVA RCA

4 S-video

MAV 62 Composite Video  2 composite video
MAV 62 S-video ...............  2 S-video
MAV 88 AV, MAV 88 AV RCA, MAV 88 V, MAV 48 AV, MAV 48 AV RCA

8 composite video

MAV 88 SVA, MAV 88 SVA RCA, MAV 48 SVA, MAV 48 SVA RCA

8 S-video

Connectors

MAV 62 Composite Video  2 female BNC
MAV 62 S-video ...............  2 female 4-pin mini DIN
MAV 44/84 composite video models

4 female BNC

MAV 44/84 S-video models

4 female 4-pin mini DIN

MAV 48/88 composite video models

8 female BNC

MAV 48/88 S-video models

8 female 4-pin mini DIN

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

0.3 Vp-p for C of S-video

Minimum/maximum levels ......  0.4 V to 2.0 Vp-p (follows input)
Impedance ....................................  75 ohms
Return loss

MAV 62 Series ..................  <-30 dB @ 5 MHz
All other models ..............  S-video: <-25 dB @ 5 MHz

Composite video: <-40 dB @ 5 MHz

DC offset 

MAV 62 Series ..................  ±5 mV maximum with input at 0 offset 
All other models ..............  15 mV typical (per output enabled with 70 ohm termination) with input at 0 offset 

Switching type .............................  Vertical interval

Genlock connectors .....................  2 BNC female
Standards ......................................  NTSC 3.58, NTSC 4.43, PAL, SECAM

Routing

MAV 44 Series ..................  4 x 4 stereo matrix
MAV 48 Series ..................  4 x 8 stereo matrix
MAV 62 Series ..................  6 x 2 stereo matrix
MAV 84 Series ..................  8 x 4 stereo matrix
MAV 88 Series ..................  8 x 8 stereo matrix

Gain  ...............................................  Adjustable; the default is unity.  Unity gain occurs for all RCA connector models 

and in MAV 62 Series models configured for unbalanced output.  In all other 
models with captive screw connectors, unity gain occurs when the switcher is 
configured for balanced output. 

Frequency response .....................  20 Hz to 20 kHz, ±0.5 dB
THD + Noise ................................  1% @ 1 kHz, 0.3% @ 20 kHz at nominal level

S/N ...............................................  90 dB at maximum output (unweighted)

Crosstalk .......................................  <-65 dB @ 20 kHz, <-80 dB @ 1 kHz or below 60 Hz, fully loaded