描述 Description

The ICS300 and ICS301 QTClocks? generate a high quality, high frequency clock output and a reference from a low frequency crystal or clock input. They are designed to replace crystals and crystal oscillators in most electronic systems. The ICS302 can accept a higher frequency clock input to generate up to 200 MHz. The devices contain a One Time Programmable (OTP) ROM which is factory programmed with the PLL divider values to output a broad range of frequencies, from 6 to 200 MHz, allowing customer requests for different frequencies to be shipped in 1-3 days. Using Phase-Locked-Loop (PLL) techniques, the devices run from a standard fundamental mode, inexpensive crystal, or clock. They are smaller and less expensive than one oscillator.

特性 Features

? Packaged as 8 pin SOIC

? Quick turn frequency programming allows samples in one to three days

? Replaces nearly any crystal or oscillator

? ICS300 produces up to 100 MHz at 3.3V, ICS301 produces up to 200 MHz at 3.3V ICS302 accepts up to 125 MHz clock input

? Easy to cascade with ICS5xx series

? Input crystal frequency of 5 - 27 MHz

? Input clock frequency of 2 - 125 MHz

? Low jitter - 50 ps one sigma

? Compatible with all popular CPUs

? Duty cycle of 45/55

? Operating voltages of 3.0 to 5.5V

? Full CMOS level outputs with 25mA drive capability at TTL levels

? Tri-state output + PLL power down pin

? Advanced, low power CMOS process