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OVERVIEW

The CF5034 series are differential LVPECL output oscillator ICs. They are made using a BiCMOS process which allows high-frequency oscillator circuits and differential LVPECL output circuits to be fabricated on a single chip. Two oscillator modes are supported—350MHz maximum fundamental oscillation mode, and 80MHz to 160MHz 3rd overtone oscillation mode.

The CF5034 series devices require only the connection of a crystal to realize a differential LVPECL output oscillator circuit.

FEATURES

■ 3.3 ± 0.3V operating supply voltage

■ Oscillator frequency range

? 80MHz to 350MHz fundamental oscillation mode

? 80MHz to 160MHz 3rd overtone oscillation mode

■ 40MHz to 350MHz output frequency range

■ Differential LVPECL output

■ fO (oscillator frequency) or fO/2 output frequency, determined by internal connection

■ 50 ± 5 output duty (measured at output crossing point)

■ Standby function: outputs are high impedance when OE is LOW.

■ Power-saving pull-up resistor built-in (pin OE)

■ Chip form (CF5034××)