Specifications
Table 27: Composite analog waveform vertical characteristics (Option CPS) (cont.)
Characteristic Performance requirement Reference information
Line Rate Tilt
<0.5%
Off Screen Recovery ≤ 0.5% variation in baseline of a Chroma
modulated pulse when positioned anywhere
on screen.
X1, X5, or any variable gain setting.
Table 28: Composite analog physical characteristics; composite input characteristics (Option CPS)
Characteristic Performance requirement Reference information
Formats supported
NTSC, NTSC no setup, and PAL, I, B, D,
G, H
Complies with RS170A & ITU-R BT.471.
Manual or auto detect of input standard.
Internal R eferenc e
Proper
horizontal and vertical
synchronization with a composite signal of
appropriate line and field r ate.
Input Dynamic Range (typical)
± 6 dB range
Video Maximum Operating
Ampl
itude (typical)
–1.8 V to +2.2 V, (all inputs) DC + peak AC.
Maximum Absolute Video Input
Volt
age
–6.0
V to +6.0 V (DC + peak AC).
Input Type
Pas
sive loop through 75 Ω compensated
DC I
nput Impedance
20 k
Ω
Return Loss, typical Typically > 46 dB to 6 MHz; > 40 dB to
10
MHz.
Typically 35 dB with power off for standard
amplitude video.
Video Input Cross-talk Between
C
hannels
≥60 dB to 6 MHz.
Loop through Isolation ≥70 dB to 6 MHz.
DC O ffset with Restore Off (typical)
≤10 mV
Measured in full screen mode at x5 vertical
gain.
DC Restore Modes Fast, Slow, and Off modes. Slow has a typical bandwidth of 10 Hz, Fast
has a typical bandwidth of 500 Hz.
DC Restore O ffset Error
<2 mV Registration between back porch and
0 V graticule.
DC Offset between Inputs with
restore off (typical)
<7 mV
DC Restore 50 and
60 Hz Attenuation
Fast Mode
>95% attenuation
16 Waveform Rasterizers Specifications and Performance Verification
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