622MHz VCXO IC
NJM2555
622MHz VCXO IC
sGENERAL DESCRIPTION
sPACKAGE OUTLINE
The NJM2555 is a 622.08MHz VCXO (Voltage Controlled Cry...
Description
NJM2555
622MHz VCXO IC
sGENERAL DESCRIPTION
sPACKAGE OUTLINE
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 (x4) 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 NJM2555C-C NJM2555V
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.
sFEATURES qOperating Voltage qFrequency range of Crystal qOutput Frequency Range qOutput Level qA Variable Capacitor on chip qBipolar Technology qPackage
+3.0V to +3.6V 155.52 MHz typ. (120 to 160 MHz) 622.08 MHz typ. (480 ...
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