Tektronix SPG8000A Master Sync / Master Clock Reference Generator

SPG8000A - Overview

• Features:

  • Multiple independent black burst and HD tri-level sync outputs provide all the video reference signals required in a video broadcast or production facility
  • Four LTC outputs, VITC on black burst outputs, and NTP server provide time reference signals in a variety of formats
  • PTP (IEEE 1588) support, including SMPTE ST 2059-2 and AES67 profiles
  • GPS/GLONASS-based synchronization gives an accurate time-of-day reference and deterministic video phase reference across multiple independent systems
  • Stay GenLock and Holdover Recovery prevent synchronization shock when the external reference input, PTP, or GPS/GLONASS signal is temporarily lost
  • Wide selection of video test patterns in serial digital formats (SD, HD and 3G-SDI) and composite analog formats (NTSC and PAL)
  • 4K/UHD formats support with full frame 100% and 75% color bars (Quad Link Square Division)
  • Dual hot-swappable power supplies ensure continuous availability of reference signals
  • Easy to manage with Web-based interface for remote configuration and SNMP for status and alert information
   

• Specifications:

  • Reference input
  • Connector: BNC ×2, passive loop-through
  • Input impedance: 75 Ω
  • Input signal: NTSC/PAL black burst ; HD tri-level sync: 1080/60/59.94/50I, 1080/30/29.97/25/24/23.98P, 1080/24/23.98PsF, 720/60/59.94/50P; 10 MHz continuous wave
  • Amplitude range: -8 dB to +6 dB
  • S/N ratioL: >40 dB
  • SCH phase: 0 ±40°
  • Return loss: ≥30 dB at 300 kHz to 10 MHz
  • Lock stability: ±3 dB amplitude change - <1 ns; Jitter with burst lock - <0.5°; Jitter with sync lock - <1 ns; Jitter with CW lock - <1 ns (typ. 1°)
    
    Genlock
  • Timing adjustment range: Anywhere in the color frame
  • Timing adjustment resolution: <0.5° of NTSC/PAL subcarrier, 1 ns with tri-level sync input
  • Color framing: Keeps accuracy even with ±45° SCH error of input reference signal
  • Genlock tune range: ±7.5 × 10-6
    
    Time reference
  • Source: GPS or GLONASS signal, PTP input, LTC input, VITC read from NTSC/PAL genlock input, or can enter manually
  • Time zone offset: ?23:59 to +23:59
  • Daylight saving adjustment: Start/end from recurring calendar or manually scheduled, with adjustable offset
  • Leap second adjustment: Inserted at 00:00 UTC on the scheduled date, or deferred up to 24 hours
    
    LTC Input
  • Connector: Available through D-sub 15-pin connector; Optional break-out cable to XLR connector available
  • Formats: 24 fps (24 Hz or 23.98 Hz), 25 fps, 30 fps, 30 fps drop-frame (29.97 Hz) per SMPTE 12M
  • Timing to video: Compliant with SMPTE 12M and continues to operate over at least 90% of possible timing range
  • Signal voltage range: 0.5 to 10 Vp-p differential, 1 to 5 Vp-p single ended
  • Noise tolerance: -30 dB SNR RMS white noise with 10 kHz BW to the p-p signal level, or -10 dB SNR for 5 MHz white noise
  • Hum tolerance: 0 dB hum-to-signal ratio
  • Error immunity: 100 consecutive frames with consistent time code must be detected for time to be considered valid
  • Input impedance: Nominal 600 Ω differential, 300 Ω single ended