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NTSC Digital Test Signal Generator and Inserter
Features
- Four external VITS inputs for insertion of Teletext, Closed Captioning, Source ID, and more
- Nonvolatile memory to maintain selected VITS and full field signal configuration after power interruption
- Signal stored in replaceable PROMs
- The accuracy and stability of all-digital 10-bit sync and signal generation
- RS-232 remote control port
Specifications
| Program Line Input Level |
1 V ±3 dB (0.7 to 1.4 V) into 75 ohm |
| Impedance |
75 Ohm nominal |
| Hum Rejection |
>/=10 dB, (>/=20 dB user selectable) referenced to 1 V hum |
| Video Gain |
Unity gain ±0.5% |
| Pulse to Bar Ratio |
2T Pulse to Bar Ratio: 100% ±0.25% |
| Frequency Response |
0.5% to 5 MHz; 1.0% to 10 MHz |
| Differential Phase |
(10-90 APL) </=0.15° |
| Differential Gain |
(10-90 APL) </=0.2° |
| Random Noise (Weighted) |
>/=75 dB (rms) down, referenced to 1 V |
| Crosstalk (Internal to Program Line) |
2T >/=70 dB: |
(down, referenced) to 0.714 V |
| Subcarrier: |
>/=60 dB down referenced to 0.714 V |
| RS232 Input/Output |
ASCII, Serial, Asynchronous Data. Full duplex input and output |
| Digital Data Interface |
Parallel, 12 balanced, signal pairs consisting of 10 bits per sample, clock, timing reference signal |
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