GS4910B GENNUM [Gennum Corporation], GS4910B Datasheet - Page 34

• Manufacturer Part Number: GS4910B
• Description: HD/SD/Graphics Clock and Timing Generator with GENLOCK
• Manufacturer: GENNUM [Gennum Corporation]

TIMING_OUT
Figure 2-1: PCLK to TIMING_OUT Signal Output Timing
Table 2-3: Suggested External Crystal Specification
36655 - 2
27.000000 MHz
AT Cut
Nominal Dissipation = 50 uW
Frequency accuracy at 25°C = +/- 10ppm
Frequency variation 0-70°C = +/- 10ppm
ASR = 50 +/- 20Ω
NOTE: The user may select an appropriate crystal accuracy for their application. If the device is
operating in Free Run mode, the output clock and timing signals will have the same accuracy as
the crystal. However, if operating in Genlock mode, all output signals are based on the input
reference, and therefore a less accurate crystal may be sufficient. See
PCLK
April 2006
50%
t
OH
V
V
OH
OL
t
OD
V
V
OH
GS4911B/GS4910B Data Sheet
OL
Section 3.2 on page
34 of 113
36.