NJM2555 Series

622MHz VCXO IC

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Description

The NJM2555 is a 622.08MHz VCXO (Voltage Controlled Crystal Oscillator) IC designed for optical fiber telecommunication systems，using NewJRC superior Bipolar technology，which consists of an oscillation amplifier，a variable capacitor diode，a quadruple (×4) frequency circuit，high pass filter，and limiter amplifier. The NJM2555 generate x4 frequency to add the only 155.52MHz crystal and LC filter，and the output is differential LVPECL equivalent. The recommended input crystal frequency is from 120 to 160 MHz. The jitter performance and phase noise is very low based on excellent oscillation circuit. This can be applied to optical communication，especially the WDM system.

Spec

	Consumer
Supply Voltage	3.0V to 3.6V
Operating Current	50mA(typ.) @3.3V
Frequency Range	120(240)MHz to 160(640)MHz
Structure	Bipolar Technology
Wide Operating Temperature	-40℃ to +85℃
Junction Temp.	+125℃
Package	Chip SSOP10
Frequency range of Crystal	155.52 MHz typ.(120 to 160 MHz)
Output Frequency Range	480 to 640 MHz
Output Level	differential LVPECL equivalent
Note	A Variable Capacitor on chip

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Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
NJM2555V		SSOP10	-	NJM-1-s-fr

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.