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4464A SDI to analog composite video & audio DAC
4464A

Features

  • Extracts two balanced analog audio stereo pairs from any group
  • High quality 24 bit audio DAC
  • Automatic detection of 525/625 SDI
  • 20 or 24 bit de-embedding
  • Adjustable full scale output levels to meet all international standards
  • Automatic input cable equalization to over 350m
  • 10-bit video DAC with 4x oversampling
  • Compact and rugged design
  • Locking connector for PSU

Control switches

  • Audio group select
  • +18dBu or +24dBu level select
  • Pal N or NTSC Japan selection
  • Custom levels select

Description

The 4464A SDI to analog composite video & audio DAC extracts two balanced stereo audio pairs from any group in the ancillary data space of a 270Mb/s SDI signal and provides broadcast quality composite video and analog audio outputs.

Analog audio outputs are converted by a 24 bit DAC (sampled at 20 or 24 bits dependent on embedded audio format). De-embedding conforms to SMPTE 272M and allows audio to be extracted from any of the four groups.

Composite video is converted using a 10-bit DAC with 4x over-sampling. Anti-aliasing filters and precision DC restoration provide the kind of conversion previously only available in rack mount systems.
Specifications
SDI Input Analog audio output
Standards SMPTE 259M 270Mb/s 525/625 Number 2 stereo pairs
Connector 75 Ω BNC Standard Balanced analog audio
Signal level 800mV p-p ± 10% (terminated) Impedance <50 Ω
Return loss >15dB to 270MHz Output level Max 0dBFS=+24dBu/ Min 0dBFS=+8.5dBu
Cable equalization >350m automatic (Belden 8281) Maximum level +24dBu into 10k Ω
Analog video output Connector Removable screw terminals
Standards NTSC USA & Japan, PAL (B,D,G,H,I) PAL N Power
Format Composite Voltage 6-12V DC
Connectors 75 Ω BNC Current 350mA
Signal level 1V p-p ± 10% Power connector Locking 2.5mm jack connector (Center +v)
DC offset ± 50mV Other
Return loss >36dB to 5.5MHz LEDs Show group status and signal presence
Audio de-embedding Temperature range 0ºC to 40ºC
Standard SMPTE 272M Dimensions 3¼” x 2½” x 1¼” (excluding connectors)
Extracts 20 or 24 bits .Weight 7 oz
Ordering Information
4464A SDI to analog composite video & audio DAC 4010 1RU rack mounting frame for up to 5 units with central power
4000 External power supply 4020 2RU rack mounting frame for up to 14 units with single or dual PSUs
opt3 4021 Central power supply for 4020 2RU rack mounting frame
Preliminary data sheet. We reserve the right to change technical specifications without prior notice.
The ISIS Group, Inc.
119 E. McKnight Way, Unit A
Grass Valley, CA 95949
USA
Phone: 530-477-2984 Fax: 530-477-2986



Internet: www.isis-group.com
Email: ldole@isis-group.com

 

11-08