SPG 1708

HDTV / SDTV Analog Sync Pulse Generator with Genlock


Analog HDTV, Analog SDTV


Product Documentation


  • Supports all regular analog Tri- and Bi-Level Sync standards
  • Simultaneous HD/Tri-Level and SD/Bi-Level sync outputs
  • 3 x HD/Tri-Level and 3 x SD/Bi-Level sync outputs
  • Genlock with cross lock to any sync standard
  • “Color Bars”, “Black Burst” or “Sync Only” for SD
  • NTSC, PAL or PAL M/N for Bi-Level sync outputs
  • Programmable sync delay output relative to reference
  • Burst phase adjustment for NTSC and PAL sync
  • Audio Sync output 48kHz Word Clock or DARS
  • yelloGUI compatible to access additional internal settings


The SPG 1708 is a compact, versatile analog sync pulse generator with genlock providing Tri-/ Bi-Level video sync and audio signals. The module offers three Tri-Level sync outputs, three Bi-Level sync outputs, and a separate Audio Sync output, with 48kHz Word Clock or Digital Audio Sync Signal (DARS) capabilities.

The sync generator has an accuracy of 2ppm, is robust and temperature stabilized. The flexible genlock capability allows the module to lock to any HD or SD Sync input, with full cross-lock functionality, even across unmatched standards. Bi-Level and Tri-Level sync outputs and audio sync signals are all frequency locked to the reference, regardless of the selected sync standard for the outputs. Output signals are timing locked if they are in the same frame rate group as the reference. Additionally, a delay in units of output line and pixel can be applied when remote controlling the SPG 1708 via yelloGUI.

Tri-Level Sync output Selections

  • 1080i: 50Hz / 59.94Hz / 60Hz
  • 1080p: 23.98Hz / 24Hz / 25Hz / 29.97Hz / 30Hz / 50Hz / 59.94Hz / 60Hz
  • 720p: 23.98Hz / 24Hz / 25Hz / 29.97Hz / 30Hz / 50Hz / 59.94Hz / 60Hz
  • 1080psf: 23.98Hz / 24Hz

Available sync formats for Bi-Level Sync are NTSC, PAL, or PAL M/N. In addition it can output Color Bars, Black Burst, or just the Sync signal with selectable 7.5 IRE pedestal for NTSC standards with adjustable burst phase in 8 increments. The Tri-level sync outputs can be set to any of the available HD/3G standards.

User controls are located on the top side of the module, clearly labeled, and easily accessible. When remote controlling the device via USB, more options and settings are available with the yelloGUI software.


XLR 1000 yellobrik XLR power adapter cable

XLR 1000

4 Pin XLR Camera Battery Adapter Cable

Ordering Information

UPC / EANModelDescription
4250479328655SPG 1708SD/HD Analog Sync Pulse Generator with Genlock
4250479310001RFR 10001RU 19" Chassis for 14 yellobriks
4250479315013RFR 1001 Single Module Mounting Bracket
4250479314016P-TAP 1000P-TAP Battery Power Adapter Cable
4250479314009XLR-1000 4 Pin XLR Battery Power Adapter Cable


ATTN: State of California Consumers

WARNING: This product can potentially expose you to chemicals which are known to the State of California to cause cancer, birth defects of other reproductive harm. For more information, go to www.P65Warnings.ca.gov