Tektronix Tektronix SPG8000, Техническое описание

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Speci fi cations
Table 12: Option SDI serial video outputs (cont.)
Characteristic Performance requirements Reference information
DC shift during HD and 3Gb mode
32
μ s pathological pattern, typical
≤ 25 mV Amount of shift depends on video format.
Many 3Gb formats will be less than ½ of this.
Signal timing, 3Gb, HD, and SD
when in Zero H based digital timing
mode, typical Signals are nominally timed, so that the
timing reference point on the serial output is
aligned within 0.5
μ s of the reference edge
of an analog reference signal at the same
frame rate. Vertically, the
fi rst lines with the
broad pulses are aligned.
Timing adjust of lines is in terms of the
raster image, so for Level B signals, this
corresponds to ½ of the time for the
multiplexed combination of two lines.
Signal timing, HD and SD when
in Legacy D to A Analog timing
mode, typical Signals are nominally timed, so that after
the SDI signal is passed through a D to
A conversion, the sync of the resulting
analog signal is aligned within 0.5
μ s of the
reference edge of an analog reference signal
at the same frame rate. Vertically, the
fi rst
lines with the broad pulses are aligned.
Table 13: SDI7 video signal content
Characteristic Description
Accuracy of synthesizer generated
test signals, typical 0.2%
Signal rise and fall time, 3Gb
1080p 50, 59.95 and 60 signals
with 148.5 MHz Luma pixel rate,
typical Y, R, G, B = 16.6 ns
Cb/Cr = 33.3 ns except for RP219 which has Y, R, G, B, Cb, Cr = 27.5 ns
Signal rise and fall time, 3Gb and
HD signal with 74.25 MHz and
74.176 MHz luma pixel rate, typical Y, R, G, B = 33.3 ns
Cb/Cr = 66.6 ns except for RP219 which has Y, R, G, B, Cb, Cr = 55 ns
Signal rise and fall time, SD, typical Y = 200 ns
Cb/Cr = 400 ns except for RP219 which has Y, Cb, Cr = 300 ns typical
2T pulse HAD For 148 MHz Luma pixel rate signals, HAD = 16.66 ns.
For 74 MHz Luma pixels rate signals, HAD = 33.33 ns.
For SD signals at 13.5 MHz Luma pixel rate, HAD is 200 ns (2T5).
12 SPG8000 Speci fi cations and Performance Veri fi cation