English
Language : 

GS4911B Datasheet, PDF (34/119 Pages) Gennum Corporation – HD/SD/Graphics Clock and Timing Generator with GENLOCK
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
–
15pF load
20% - 80%
(GS4911B only)
–
–
–
ACLK Outputs Relative
–
Timing Skew
(GS4911B only)
Digital Timing Output Delay
tOD
Time
Digital Timing Output Hold Time tOH
Digital Timing Output Rise/Fall –
Times
15pF load
20% - 80%
–
–
–
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
–
–
–
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
–
DCGSPI
–
t3 in
–
Figure 3-18
Min
Typ
Max
Units Notes
–
–
3.0
ns
–
–
–
1.5
ns
–
–
–
2.5
ns
–
–
–
1.4
ns
–
-3
–
3
ns
4
–
–
4.3
ns
6
1
–
–
ns
6
–
–
3.0
ns
–
–
–
1.5
ns
–
–
–
2.5
ns
–
–
–
1.4
ns
–
–
–
10.0
MHz
7
40
–
60
%
7
1.5
–
–
ns
7
GS4911B/GS4910B HD/SD/Graphics Clock and Timing
Generator with GENLOCK
Data Sheet
36655 - 5
June 2009
34 of 119