DATA SHEET

ICS810001DK-21 REVISION B APRIL 13, 2010

1

©2010 Integrated Device Technology, Inc.

FemtoClock™ Dual VCXO Video PLL

ICS810001-21

General Description

The ICS810001-21 is a PLL based synchronous clock

generator that is optimized for digital video clock jitter

attenuation and frequency translation. The device

contains two internal frequency multiplication stages

that are cascaded in series. The first stage is a VCXO

PLL that is optimized to provide reference clock jitter attenuation,

and to support the complex PLL multiplication ratios needed for

video rate conversion. The second stage is a FemtoClock™

frequency multiplier that provides the low jitter, high frequency video

output clock.

Preset multiplication ratios are selected from internal lookup tables

using device input selection pins. The multiplication ratios are

optimized to support most common video rates used in professional

video system applications. The VCXO requires the use of an

external, inexpensive pullable crystal. Two crystal connections are

provided (pin selectable) so that both 60 and 59.94 base frame rates

can be supported. The VCXO requires external passive loop filter

components which are used to set the PLL loop bandwidth and

damping characteristics.

Features

MPEG-transport clocks

pixel rates

in one device

148.5MHz)

26.973MHz)

1.089ps (typical)

packages

Supported Input Frequencies

Supported Output Frequencies

HiPerClockS™

ICS

27.0000MHz

26.9730MHz

27.0270MHz

27.0000MHz

74.1758MHz

74.1016MHz

74.3243MHz

74.2499MHz

74.2500MHz

74.1758MHz

27.0270MHz

27.0000MHz

26.9730MHz

26.9461MHz

74.1758MHz

74.1016kHz

45.0000kHz

44.9550kHz

33.7500kHz

33.7163kHz

15.6250kHz

15.6094kHz

15.7343kHz

15.7185kHz

28.1250kHz

28.0969kHz

148.5000MHz

148.3515MHz

74.2500MHz

74.1758MHz

49.5000MHz

49.4505MHz

33.0000MHz

32.9670MHz

162.0000MHz

161.8380MHz

81.0000MHz

80.9190MHz

54.0000MHz

53.9460MHz

36.0000MHz

35.9640MHz

27.0000MHz

26.9730MHz