7750TG
SD-SDI Test Signal Generator
The 7750TG Test Signal Generator provides a cost effective method of generating SDTV 270Mb/s 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 test signals in 525 line and 625 line SMPTE 259M-C video formats and offers four 270Mb/s outputs. Error detection and handling (EDH) codes are embedded on all outputs for digital link performance verification.
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.
Features
- 525 line and 625 line formats
- Card edge toggle switch selects test signal
- On screen text message can be used for source identification
- Up to 4 embedded audio tones, selectable audio group assignment
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- 4 Output Drivers
- On screen setup menu
- On screen display of test signal names
- Front panel LEDs indicate genlock presence and module health
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Specifications
| Type | NTSC or PAL color black 1V p-p Composite Bi-level sync (525 Line or 625 Line) 300mV |
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| Number of Inputs | 1 |
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| Connector | BNC per IEC 61169-8 Annex A |
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| Termination | 75Ω (jumper selectable) |
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| Standard | SMPTE 259M-C (270Mb/s) |
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| Number of Outputs | 4 |
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| Connector | BNC per IEC 61169-8 Annex A |
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| Embedded Audio | Up to 4 tones in one audio group as specified in SMPTE 272M. Selectable tone frequencies (from 60Hz to 10kHz) and audio group. Audio level is set to -20dB full scale. |
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| Signal Level | 800mV nominal |
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| DC Offset | 0V ±0.5V |
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| Rise/Fall Time | 740ps nominal |
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| Overshoot | < 10% of amplitude |
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| Wideband Jitter | < 0.2UI |
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| Voltage | +12V DC |
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| Power | 6 Watts |
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| EMI/RFI | Complies with FCC Part 15 Class A, EU EMC Directive |
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Ordering Information
| 7750TG | SD-SDI Test Signal Generator |
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| Notes | • Rear plate must be specified at time of order - eg: [model]+3RU |
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| Rear Plate Suffix |
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| +3RU | 3RU rear plate for use with 7800FR, 7700FR-C or 350FR Multiframes |
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| +1RU | 1RU rear plate for use with 7701FR Multiframe |
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| +SA | Standalone Enclosure Rear Plate |
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| 350FR | Portable Multiframe which holds 7 modules |
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| 7700FR-C | 3RU Multiframe which holds 15 modules |
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| 7800FR | 3RU Multiframe which holds 15 modules |
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| 7701FR | 1RU Multiframe which holds 3 modules |
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| S7701FR | 7700 Series Standalone Enclosure |
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