Atec Tektronix-VITS100 - Manual (Page 3)

Specifications
3–2 VITS 100 NTSC VITS Inserter Instruction Manual
Table 3–1: Program channel characteristics (Cont.)
Characteristic Information
Phase Matching of Inserted Test Signal to
Program Video
±
1
°
(Program Sync and Burst Normal Level)
Pulse to Bar Ratio 100%
±
0.5% (Typically within
±
0.25%)
Signal to Noise Ratio >70 dB (Unweighted Filter at 5 MHz. Measured 91 dB on VM700A, relative to reference)
Table 3–2: Test Signal and Black Burst general characteristics
Characteristic Information
Frequency Response
±
1% to 5 MHz
±
5% to 10 MHz
Luminance Amplitude Accuracy
±
1%
Chrominance-to-Luminance Gain
±
0.5%
Chrominance-to-Luminance Delay
≤
5 ns
Diff Phase
≤
0.3
°
Diff Gain
≤
0.3%
Line Tilt
±
0.5%
Output Impedance 75 W
Signal to Noise Ratio >78 dB (Measured on a VM700A with an unweighted 5 MHz lowpass filter.)
Spurious Signals (5 MHz 50 MHz) >55 dB down
Pulse to Bar Ratio 100%
±
0.5%
K Factor (K2T) 0.3% (Typically 0.2%)
Crosstalk
≥
60 dB down
DC Offset 0 V DC
±
10 mV
SCH Phase Accuracy 0
±
5
°
(<
±
2.5
°
typical)
Luminance Rise Time 140 ns
±
20 ns
Chrominance Rise Time 300 ns
±
35 ns
Table 3–3: Black and Gray Test Signal characteristics
Signal Information
0% Black 0 IRE Luminance with sync and burst; see Figure 3–1.
7.5% Black 7.5 IRE Luminance with sync and burst; see Figure 3–2.
50% Gray 50 IRE Luminance with sync and burst; see Figure 3–3.