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4424 SDI to Composite Analogue Video 10-bit DAC

4424 SDI to Composite Analogue Video 10-bit DAC

The 4424 is a broadcast quality 270Mb/s SDI to composite analogue converter. It has a re-clocked SDI output. PAL or NTSC is automatically detected. Switches on the end of the unit control the output of the built in test patterns.

It is housed in an extremely compact and rugged aluminium case ideally suited to both studio and portable applications.

The unit requires an external power supply or a rack mounting frame. Please see MiniBlox Accessories.

Key features

  • SDI to composite analogue DAC
  • Automatic 270Mb/s 525/625 detection
  • 4x over-sampling
  • 10-bit DAC
  • Automatic input cable equalisation to over 350m
  • Re-clocked SDI output
  • Built in colour bar & blackburst generator (requires an SDI input)
  • Compact and rugged design
  • Locking connector for PSU
  • Control switches
  • Test pattern selection
  • PAL N or NTSC Japan selection

Technical Specifications
Video Specification
Video input
StandardSMPTE 259M-C (270Mb/s) 525/625 SDI
Connector75 Ohm BNC
Signal level800mV p-p ±10%
Return loss>15dB to 270MHz
Cable equalisation350m (Belden 8281)
Re-clocked SDI output
StandardsAs input
Connectors75 Ohm BNC
Signal level800mV p-p ±10%
Return loss>15dB up to 270MHz
Analogue output
StandardsPAL (B, D, G, H, I), PAL N, NTSC USA & Japan
Connectors75 Ohm BNC
Signal level1Vp-p ±10%
DC offset±100mV
Return loss>36dB to 5.5MHz
Cable driveUp to 800m (Belden 8281)
Test patternsColour bars and blackburst (SDI input required)
Frequency responseFlat to 5.5MHz, -3dB at approx. 6MHz
Differential gain<0.3%
Differential phase<0.5º
Input10-bit 4:2:2
Quantisation10-bit DAC
Electrical Specification
Power300mA @ 6V
ConnectorLocking 2.5mm jack (centre +ve)
Other Specifications
LEDsPower & signal presence
Size (mm)63.5 x 84 x 30 plus connectors
Temperature0°C to 40°C
Humidity80% max (non condensing)
Description      Each:
Price Qty
DTL 4424MiniBlox SDI to composite analogue 10-bit DAC£450.00
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