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PRELIMINARY INFORMATION
ICS3727XP
LOW COST 24 TO 36 MHZ 3.
3 VOLT VCXO
Description
The ICS3727XP combines the functions of a VCXO (
Voltage Controlled Crystal Oscillator) and PLL (Phase-Locked Loop) frequency doubler onto a single chip.
It is designed primarily for data and clock recovery applications within end products such as set-top box receivers.
The ICS3727XP exhibits a moderate VCXO gain of 200 ppm/V typical, when used with a high quality external pullable quartz crystal.
The frequency of the on-chip VCXO is adjusted by an external control
voltage input into pin VIN.
Because VIN is a high impedance input, it can be driven directly from an PWM RC integrator circuit...