Tektronix WVR6020, Technical Reference

Page: 28 / 138

Speci fi cations
Standard De fi nition (SD) Characteristics
The characteristics in this section are common to the WVR6020, WVR7020,
and WVR7120 Waveform Rasterizers.
Table 24: SD waveform vertical characteristics, SDI inputs A and B
Characteristic Performance requirement Reference information
Frequency Response
RGB Monochrome identical to Y channel.
Luminance channel (Y) 5.75 MHz ± 0.5%
Color difference channels (P
B
& P
R
) 2.75 MHz ± 0.5%
Transient Response
Pre-shoot, Over-shoot
(Sine-Squared Bars) 2T5 bar ≤ 0.3% peak
Ringing (Sine-Squared Bars) 2T5 ≤ 0.8%
p-p
Pulse-to-bar ratio 0.99:1 to 1.01:1 on appropriate
Sine-Squared or Blackman 2T pulse.
Low Pass Filter Frequency Response,
SDI Component Only ≤ 3 dB attenuation at 800 kHz.
≥ 32 dB attenuation at 3 MHz.
Response meets STD–05.
Table 25: SD physical characteristics, SDI inputs A and B
Characteristic Performance requirement Reference information
Formats Supported 270 Mbit/s component.
(See page 33,
Signal Input-to-Reference
Compatibility Tables .)
Auto detect of input standard.
Input Level 800 mV
p-p
± 10%
Input voltages outside this range may cause
reduced receiver performance.
Input Type Passive loop through 75 Ω compensated.
Return Loss, typical
Power on ≥ 25 dB 1-270 MHz
Power off ≥ 15 dB 1-270 MHz
Insertion Loss (Loop Through) ≤ 2 dB to 270MHz
Loop Through Isolation ≥ 50 dB to 300 MHz
Serial Receiver Equalization
Range
Proper operation with up to 23.0 dB loss at
135 MHz using coaxial cable having loss
characteristics of
800 mV launch amplitude per SMPTE 292M.
Typically 275 meters using Belden 8281
coaxial cable.
Jitter Tolerance 0.4 UI
p-p
above 1 MHz.
5 UI
p-p
at 10 kHz.
Input Timebase Range 270Mbit/s ± 50ppm Many functions continue to operate to much
wider range, typically 10,000 ppm.
14 Waveform Rasterizers Speci fi cations and Performance Veri fi cation