Tektronix WVR6020, Technical Reference

Page: 27 / 138

Speci fi cations
Table 21: HD waveform vertical characteristics, SDI inputs A and B (cont.)
Characteristic Performance requirement Reference information
Pre-shoot, Over-shoot,
Sine-Squared Bars: 2T30 bar ≤ 0.5% peak
Ringing: Sine-Squared Bars:
2T30 ≤ 0.8%
p-p
Low Pass Filter Frequency
Response ≤ 3 dB attenuation at 4 MHz.
≥ 25 dB attenuation at 15 MHz.
Response provides conventional noise
reduction. For 1080P 60/59/50 dual link
formats:
≤ 3 dB attenuation at 9 MHz ≥
25 dB attenuation above 30 MHz
Table 22: HD physical characteristics, SDI A and B inputs
Characteristic Performance requirement Reference information
Formats Supported 1485/1483 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 ≥ 15 dB 1-1500 MHz
Power off ≥ 10 dB 1-1500 MHz
Insertion Loss (Loop Through) ≤ 4 dB to 1500 MHz
Loop Through Isolation ≥ 5 dB to 1 GHz
Serial Receiver Equalization
Range Proper operation with up to 20.0 dB loss at
750 MHz using coaxial cable having loss
characteristics of
800 mV launch amplitude per SMPTE 292M.
Equivalent to approximately 80 meters
of Belden 8281. Typically operates to
130 meters.
Jitter Tolerance 0.35 UI
p-p
above 1 MHz.
5 UI
p-p
at 10 kHz.
Input Timebase Range 1485 Mbit/s ± 50ppm, or 1483.51 Mbit/s
(plus-min) 50ppm. Many functions continue to operate over a
much wider range, typically 10,000 ppm.
Table 23: Miscellaneous measurements and displays
Characteristic Performance requirement Reference information
Errors and Alarms
(See Table 46 on page 31.)
Error Statistics Displays errored seconds and fi elds,
and percentage of fi elds with errors for
Y and C CRC Errors and Y and C Anc
Checksum errors.
Shown in Video Session display.
Waveform Rasterizers Speci fi cations and Performance Veri fi cation 13