SPG-1801
Sync Pulse Generator

The Densité Series SPG-1801 is a sync pulse generator card. It accepts an external reference input or a digital universal reference signal (URS) from the frame reference module REF-1801, if present. It features two fully independent outputs, with user selectable output format (blackburst, tri-level sync, DARS, Word Clock) and user configurable pixel by pixel output timing adjustment. The SPG-1801 can lock on a blackburst or a tri-level sync signal. The output signal can be video (blackburst, tri-level sync) or audio (Word Clock, DARS). In the case of an audio output, the SPG-1801 can also lock on an external DARS or Word Clock.

  • Up to 20 cards per frame
  • Reference input
    • External: blackburst, tri-level sync, DARS, Word Clock
    • Internal (with a REF-1801 card): Universal Reference Signal (URS)
  • Two fully independent sync outputs
    • Audio or video
    • Selectable format
    • Support for blackburst, tri-level sync, DARS, Word Clock
    • Timing adjustment: up to 1 frame, pixel by pixel
  • Easy control and monitoring
GENLOCK INPUT
  • Load: Passive Loop-through
  • Impedance: 75Ω bridging
  • Return loss: >30 dB up to 30 MHz
  • Signal type: Composite NTSC-M, PAL-B blackburst with optional VITC
  • Standard: SMPTE-170M, ITU-R BT.1700-1, SMPTE-318M
  • Signal level: 1 Vp-p
  • Signal type: HD tri-level sync
  • Standard: SMPTE-274M, SMPTE-296M
  • Signal level: 600 mVp-p
  • Signal type: DARS AES-3id
  • Standard: SMPTE-276M
  • Signal level: 1 Vp-p
  • Signal type: Word Clock
  • Standard: AES11-2003
  • Signal level: 2.3 Vp-p
URS INPUT (from REF-1801)
  • Signal type: URS4D — Universal Reference Signal
  • Standard: Grass Valley proprietary
LTC-IN
  • Connector: BNC per IEC 60169-8 amendment 2
  • Signal type: LTC
  • Standard: SMPTE-12M
  • Signal level: 0.5 Vp-p to 4.5 Vp-p
ANALOG REFERENCE OUTPUT
  • Signal type: Composite NTSC-M, PAL-B with optional VITC
  • Standard: SMPTE-170M, ITU-R BT.1700-1, SMPTE-318M
  • Signal level: 1 Vp-p
  • Signal type: HD tri-level sync
  • Standard: SMPTE-274M, SMPTE-296M
  • Signal level: 600 mVp-p
  • Signal type: DARS AES-3id
  • Standard: SMPTE-276M
  • Signal level: 1 Vp-p
  • Signal type: Word Clock
  • Standard: AES11-2003
  • Signal level: 2.3 Vp-p
NO REFERENCE
  • Format 525: Min.: 18.296 μs
  • Adjustment +2 frames
  • Format 625: Min.: 18.296 μs
  • Adjustment +2 frames
ELECTRICAL
  • Power: 3.5W
Densité 2 frame Densité 3 frame Description
SPG-1801 SPG-1801-3RU Sync pulse generator
SPG-1801-SRP SPG-1801-SRP-3RU Single rear connector panel
 
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