MK157303 Integrated Circuit System, MK157303 Datasheet - Page 4

• Manufacturer Part Number: MK157303
• Manufacturer: Integrated Circuit System

MDS1573-03 A
Integrated Circuit Systems, Inc.• 525 Race Street • San Jose • CA • 95126 • [phone] • www.icst.com
Clock Waveforms
In addition to generating the video clock on CLK1 (pin 10), the MK1573 also outputs the recovered HSYNC
clocks. On certain selections, a double speed recovered HSYNC clock is also available. These recovered clocks
will have lower jitter than the HSYNC input due to the filtering action of the PLL. The jitter spectrum of the
recovered clocks will be reduced at frequencies higher than the loop bandwidth. The waveforms of the recovered
clocks fall into one of three different groups depending on the address selection:
The recovered clocks are triggered by the falling edge of HSYNC and are delayed by about 100ns.
Addresses 2 to 7 and C
Addresses A and B
Addresses D, E, and F
HSYNC
HSYNC
CLK3
CLK3
HSYNC
input
CLK2
CLK3
input
CLK2
input
GenClock™ HSYNC to Video Clock
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MK1573-03
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