Atec Tektronix-VM6000 - Manual (Page 17)

Automated Video Measurement Set — VM6000
Option VGA Video Measurements* 12
Characteristic Description VM5000HD, VM5000,
TDS5104, TDS5104B VM6000, DPO7104 DPO7254 DPO7354
Amplitude Measurements
Luma Level, Max and Min VESA 6.1 (Typical) ±5 mV ±0.9% of reading ±5 mV ±0.6% of reading ±5 mV ±0.6% of reading ±5 mV ±0.6% of reading
Color Bars Channel voltage levels
measured relative to back
porch (Typical)
±3 mV ±0.9% of reading ±3 mV ±0.6% of reading ±3 mV ±0.6% of reading ±3 mV ±0.6% of reading
CH-CH Mismatch (mV) ±5 mV ±1.3% of reading ±5 mV ±0.9% of reading ±5 mV ±0.9% of reading ±5 mV ±0.9% of reading
CH-CH Mismatch (%)
32-step staircase signal.
VESA 6.5 channel voltage
levels measured relative to
back porch (Typical)
±0.7% ± (1.3%)×(Luma
Level / Max Luma Level);
Maximum of ±2.0%
±0.7% ± (0.9%)×(Luma
Level / Max Luma Level);
Maximum of ±1.6%
±0.7% ± (0.9%)×(Luma
Level / Max Luma Level);
Maximum of ±1.6%
±0.7% ± (0.9%)×(Luma
Level / Max Luma Level);
Maximum of ±1.6%
HV Sync Logic “0” and “1” VESA 7.1
(P-P sync amplitude) =
(logic 1 voltage) - (logic 0
voltage) (Typical)
±[8 mV ± (0.01) × (P-P
sync amplitude)] ±0.8%
of reading
±[8 mV ± (0.01) × (P-P
sync amplitude)] ±0.5%
of reading
±[8 mV ± (0.01) × (P-P
sync amplitude)] ±0.5%
of reading
±[8 mV ± (0.01) × (P-P
sync amplitude)] ±0.5%
of reading
Linearity, Resolution, Monotonicity
Integral Linearity (%) VESA 6.4.
Requires step response
compliant to VESA limits
for overshoot/undershoot,
amplitude and settle time
±1.0% (Typical) ±1.0% (Typical) ±1.5% (Typical) ±1.5% (Typical)
Differential Linearity (Typical) ±0.25 LSB (8 bit)
±0.5 LSB (10 bit)
±0.25 LSB (8 bit)
±0.5 LSB (10 bit)
±0.5 LSB (8 bit)
±1.0 LSB (10 bit)
±0.5 LSB (8 bit)
±1.0 LSB (10 bit)
RGB Video Monotonicity Monotonicity checks every
step on the ramp to ensure
signal is always rising
(Typical)
±0.25 LSB (8 bit)
±0.5 LSB (10 bit)
±0.25 LSB (8 bit)
±0.5 LSB (10 bit)
±0.5 LSB (8 bit)
±1.0 LSB (10 bit)
±0.5 LSB (8 bit)
±1.0 LSB (10 bit)
Resolution Measurement
Range
Resolution measured in bits 5 to 10 bits 5 to 10 bits 5 to 10 bits 5 to 10 bits
HV Sync Monotonic Rise
and Fall
Checks sync for
always-rising and
always-falling
characteristic. Requires
VESA-compliant amplitude,
noise, rise, and fall
Detects monotony as
small as 1% of P-P sync
amplitude (Typical)
Detects monotony as
small as 1% of P-P sync
amplitude (Typical)
Detects monotony as
small as 2% f P-P sync
amplitude (Typical)
Detects monotony as
small as 2% f P-P sync
amplitude (Typical)
Noise
Noise (mV) Measurement
Range 8-15 mV
±5.25 mV ±5.25 mV ±5.25 mV ±5.25 mV
Noise (mV) Measurement
Range 15-25 mV
The lesser of ±7 mV
or ±35%
The lesser of ±7 mV
or ±35%
The lesser of ±7 mV
or ±35%
The lesser of ±7 mV
or ±35%
Noise Injection Ratio (%)
Measurement Range 1.1%
to 2.1%
±0.75% ±0.75% ±0.75% ±0.75%
Noise Injection Ratio (%)
Measurement Range 2.1%
to 3.6%
Measurement of RGB
noise on constant pedestal,
0 to 700 mV. Output in
mV
p-p
, 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
±1% ±1% ±1% ±1%
Timing
Channel Skew
Measurement Range
±35 ns
Alternate implementation
of VESA 6.7; Any two
channels
±500 ps ±550 ps ±600 ps ±600 ps
H Timing (ns) - Front and
Back Porch, Left and Right
Border, Addressable Video
— 360 ps ±15 ppm × Reading 360 ps ±2.5 ppm × Reading 360 ps ±2.5 ppm × Reading 360 ps ±2.5 ppm × Reading
H Sync Period, H and
V Sync Pulse Width (ns)
— 80 ps ±15 ppm × Reading 80 ps ±2.5 ppm × Reading 80 ps ±2.5 ppm × Reading 80 ps ±2.5 ppm × Reading
V Sync Period (μs) Readout (precision) is 1 μs 20 ns ±15 ppm × Reading 20 ns ±2.5 ppm × Reading 20 ns ±2.5 ppm × Reading 20 ns ±2.5 ppm × Reading
V Timing (lines) – Front
and Back Porch, Top
and Bottom Border,
Addressable Lines
Readout (precision) is
1 line. Functions within
±10 lines of VESA
reference value
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