Automated Video Measurement Set
VM5000
Video Measurement • www.tektronix.com/video
10
Options SD and HD Video Measurements (Continued)
Characteristic Description
Sync Measurement
Accuracy
Sync Amplitude ±2 mV ±1.5% of reading Blanking interval measurements, including
sync amplitude, width and rise time
Sync Timing (0.06/sample rate + 15 ppm x |Reading|) RMS
Rise Time and Fall Time ±5 ns
Channel Delay CH 1 to CH 2, CH 1 to CH 3, CH 2
to CH 3; readouts in ns
Range
Accuracy
Measurement ±35 ns ±5 ns
Delay Match Error Less than 1 ns Any two channels
Option VGA Video Measurements
*2
Characteristic Accuracy Description
Amplitude Measurements
Luma Level, Max and Min ±8 mV ±2.0% of reading VESA 6.1
Color Bars ±3 mV ±1.8% of reading Channel voltage levels measured relative to back porch
Ch-Ch Mismatch (mV) ±3 mV ±3.6% of reading 32-step staircase signal.VESA 6.5 Channel
voltage levels measured relative to back porch
Ch-Ch Mismatch (%) ±0.4% ±(3.6%) x (Luma Level)/(Max
Luma Level); maximum ±4%
H & V sync Logic “0” and “1” ± [8mV ±(0.0085) x (p-p sync amplitude)] ±1.8% VESA 7.1
(p-p sync amplitude)=(logic 1 voltage)–(logic 0 voltage)
Linearity, Resolution,Monotonicity
Integral Linearity (%) ±2% VESA 6.4. Requires step response compliant
Differential Linearity ±0.25 LSB (8 bit) to VESA limits for overshoot/undershoot,
±0.5 LSB (10 bit) amplitude and settle time
RGB Video Monotonicity ±0.25 LSB (8 bit) Monotonicity checks every step on the ramp
±0.5 LSB (10 bit) to ensure signal is always rising
Resolution Measurement Range 5 to 10 bits Resolution measured in bits
HV Sync Monotonic Rise and Fall Detects monotonicity errors as small as 1% Checks sync for always rising and always-
of p-p sync amplitude falling characteristic. Requires VESA compliant
amplitude, noise, rise and fall
Noise
Noise (mV) Measurement Range 8 to 15 mV ±5.25 mV
Noise (mV) Measurement Range 15 to 25mV The lesser of ±7 mV or ±35%
Noise Injection Ratio (%) Measurement
Range 1.1% to 2.1% ±.75%
Noise Injection Ratio (%) Measurement
Range 2.1% to 3.6% ±1%
Timing
Channel Skew Measurement Range ±35 ns ±500 ps Alternate implementation of VESA 6.7; Any two channels
H Timing (ns) – Front and Back Porch, Left 360 ps ±15 ppm x Reading
and Right Border,Addressable Video
H Sync Period,H and V Sync Pulse width (ns) 80 ps ±15 ppm x Reading
V Sync Period (µs) 20 ns ±15 ppm x Reading Read out (precision) is 1 µs
Measurement of RGB noise on constant pedestal,
0 to 700 mV. Output in mV peak to peak,dB below
700 mV,VESA Sec 6.6. Displayed value corrected for
instrument noise. Specification applies with 500 MHz
bandwidth filter and 10 averages selected
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