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GS4911B Datasheet, PDF (34/119 Pages) Gennum Corporation – HD/SD/Graphics Clock and Timing Generator with GENLOCK | |||
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Table 2-2: AC Electrical Characteristics (Continued)
VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified.
Parameter
Symbol
Condition
ACLK1-3 Rise/Fall Times
â
15pF load
20% - 80%
(GS4911B only)
â
â
â
ACLK Outputs Relative
â
Timing Skew
(GS4911B only)
Digital Timing Output Delay
tOD
Time
Digital Timing Output Hold Time tOH
Digital Timing Output Rise/Fall â
Times
15pF load
20% - 80%
â
â
â
IO_VDD = 1.8V
current drive =
LOW
IO_VDD = 3.3V
current drive =
LOW
IO_VDD = 1.8V
current drive =
HIGH
IO_VDD = 3.3V
current drive =
HIGH
â
â
â
IO_VDD = 1.8V
current drive =
LOW
IO_VDD = 3.3V
current drive =
LOW
IO_VDD = 1.8V
current drive =
HIGH
IO_VDD = 3.3V
current drive =
HIGH
GSPI
GSPI Input Clock Frequency
GSPI Clock Duty Cycle
GSPI Input Setup Time
fGSPI
â
DCGSPI
â
t3 in
â
Figure 3-18
Min
Typ
Max
Units Notes
â
â
3.0
ns
â
â
â
1.5
ns
â
â
â
2.5
ns
â
â
â
1.4
ns
â
-3
â
3
ns
4
â
â
4.3
ns
6
1
â
â
ns
6
â
â
3.0
ns
â
â
â
1.5
ns
â
â
â
2.5
ns
â
â
â
1.4
ns
â
â
â
10.0
MHz
7
40
â
60
%
7
1.5
â
â
ns
7
GS4911B/GS4910B HD/SD/Graphics Clock and Timing
Generator with GENLOCK
Data Sheet
36655 - 5
June 2009
34 of 119
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