HP CRT Monitor s7500

Page 7
HP S7500/MV7500/CV7500
2-3 Timing Chart
This section describes the timings that the computer industry recognizes as standard for computer-generated
video signals.
Table 2-2. Timing Chart
H.Parameters:
A: Period B: Blanking Time
C: Sync Width D: Back Porch
E: Active Time F: Front Porch
V.Parameters:
G: Period H: Blanking Time
I: Sync Width J: Back Porch
K: Active Time L: Front Porch
Seperate Sync
Horizontal
Video
C
D
E
Sync
A
B
F
Vertical
Video
I
J
Sync
G
H
L
K
Mode 1 2 3 4 5 6 7 8 9
H. Dots 640 720 640 640 800 800 1024 1024 1280
V. Dots 480 400 480 480 600 600 768 768 1024
H-freq (kHz) 31.47 31.47 37.5 43.27 46.8 53.67 60.02 68.68 63.98
Sync Polarity - - - - + + + + +
A period us 31.78 31.78 26.666 23.11 21.333 18.63 16.66 14.56 15.63
B Blanking us 6.356 6.356 6.349 5.33 5.172 4.409 3.657 3.725 3.778
C Sync us 3.81 3.81 2.032 1.556 1.616 1.138 1.219 1.016 1.037
D B.P. us 1.907 1.907 3.81 2.22 3.232 2.702 2.235 2.201 2.296
E Active us 25.42 25.42 20.37 17.78 16.162 14.22 13 10.836 11.852
F F.P. us 0.636 0.636 0.51 1.556 0.323 0.569 0.203 0.508 0.444
V-freq (Hz) 59.95 70.08 75 85 75 85 75.03 85 60.02
Sync Polarity - + - - + + + + +
O Period ms 16.68 14.27 13.3 11.76 13.333 11.76 13.33 11.77 16.661
P Blanking ms 1.43 1.557 0.533 0.67 0.533 0.578 0.533 0.582 0.656
Q Sync ms 0.064 0.064 0.08 0.069 0.064 0.056 0.05 0.044 0.047
R B.P. us 1.02 1.08 0.427 0.578 0.448 0.503 0.466 0.524 0.594
S Active us 15.25 12.71 12.8 11.09 12.8 11.18 12.8 11.18 16.005
T F.P. us 0.35 0.413 0.027 0.023 0.021 0.019 0.017 0.015 0.016