The 7750TG Test Signal Generator provides a cost-effective method of generating 270Mb/s serial digital test signals. The 7750TG is ideal for checking signal path integrity, monitor alignment or to determine system performance over varying cable lengths. The 7750TG generates a wide variety of industry standard test signals in 525 line and 625 line SMPTE ST 259-C video formats and offers four 270Mb/s outputs. Error detection and handling (EDH) codes are embedded on all the outputs to allow you to verify the performance of your digital signal paths.

The 7750TG provides an analog genlock input that allows you to synchronize the test signals to your plant horizontal and vertical timing.

Separate audio tones can be embedded into each channel of one of the four embedded audio groups. The user can select which of the audio groups the tones will be embedded into. The audio level is fixed at -20dB full scale.


  • 525 line and 625 line formats
  • Card edge toggle switch selects test signal
  • On-screen display of test signal names
  • 4 embedded audio tones, selectable audio group assignment
  • 4 output drivers
  • On-screen text message can be used for source identification
  • On-screen setup menu
  • Card edge LEDs indicate genlock presence and module health

Download Datasheet


Genlock Input
TypeNTSC or PAL Color Black 1V p-p
Composite Bi-level sync (525 Line or 625 Line) 300mV
Connector1 BNC per IEC 61169-8 Annex A
Termination75Ω (jumper selectable)
Serial Video Output
StandardSMPTE ST 259-C (270Mb/s)
Embedded AudioUp to 4 tones in one audio group as specified in SMPTE ST 272
Selectable tone frequencies (from 60Hz to 10kHz) and audio group
Audio level is set to 20dB full scale
Number of Outputs4
Connectors4 BNC per IEC 61169-8 Annex A
Signal Level800mV nominal
DC Offset0V ±0.5V
Rise and Fall Time740ps nominal
Overshoot< 10% of amplitude
Wide Band Jitter< 0.2UI
Voltage+12V DC
Power6 watts
EMI/RFIComplies with FCC Part 15, Class A, EU EMC Directive
Number of Slots1

Ordering Information

7750TGSD-SDI Test Signal Generator
Ordering Options
NotesRear plate must be specified at time of order - eg: [model]+3RU
Rear Plate Suffix
+SAStandalone Enclosure Rear Plate
+3RU3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes
350FRPortable Multiframe which holds 7 single slot modules
7700FR-C3RU Multiframe which holds 15 single slot modules
7800FR3RU Multiframe which holds 15 single slot modules
7801FR1RU Multiframe which holds 4 single slot modules
S7701FR7700 Series Standalone Enclosure