HP 743 Series Technical Reference Manual For Oems page 127

Electrical Information
Table 5-31 summarizes the timing specifications for the 1024 x 768 and 1280 x 1024 moni-
tors at 60 Hz, 75 Hz, and 72 Hz.
Table 5-31 Timing Specifications at 60 Hz, 75 Hz, and 72 Hz
Horizontal
active scan
Horizontal
"back porch"
Horizontal
blanking
Horizontal
"front porch"
Horizontal
period ("1H")
Horizontal
sweep fre-
quency
Horizontal sync
width
Pixel clock rate
Vertical active
period
Vertical "back
porch"
Vertical blank-
ing
Vertical frame
rate
Vertical "front
porch"
Vertical period
Vertical sync
width
5-38
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D2806A
Signal 1024x768
60 Hz
15.97µs
2.00µs
4.99µs
1.00µs
20.96µs
47.7KHz
2.00µs
64.1088MHz
16.097ms
419.20µs
(20H)
0.570ms
60Hz
(non-in)
62.89µs (3H)
16.667ms
83.86µs (4H)
A4330A/
D2806A
A4331
1024x768
1280x1024
75 Hz
60Hz
12.105µs 11.832µs
1.513µs 1.849µs
3.783µs 3.956µs
0.756µs 0.407µs
15.888µs 15.788µs
62.936KHz 63.34KHz
1.513µs 1.701µs
84.587MHz 108.181MHz
12.202ms 16.167ms
410.49 µs
1.016ms (64H)
(26H)
1.144ms .505ms
74.924Hz 60Hz
(non-in) (non-in)
63.55µs (4H) 47.36µs (3H)
13.346ms 16.672ms
63.55µs (4H) 47.36µs (3H)
A4330A/
A4331
1280x1024
72 Hz
9.482µs
1.422µs
3.318µs
0.474µs
12.800µs
78.125KHz
1.422µs
135.000MHz
13.107ms
704.00µs
(55H)
0.780ms
72.005Hz
(non-in)
38.400µs (3H)
13.887ms
38.400µs (3H)