NIHON DEMPA KOGYO (NDK) CO.,LTD.

Two reference input frequencies in 9 steps from 8 kHz to 77.76 MHz.
Compliant with Telecordia GR1244CORE, GR253.
Hit-less reference switching.
Frequency ramp control during reference switching.
Simple hardware control for operational modes (Freerun, Locked to Ref 1 or 2 and Holdover)
Two output signals: one fixed at 8 kHz, one selectable (see specifications) up to 77.76 MHz.

Supply Voltage (VCC)	+5.0V±5%
Current Consumption	OCXO version 525 mA typ turn on and 250 mA Steady state
Operating Temp. Range	0 to +70 °C
Input Levels	2 - CMOS
Input Reference Frequency(MHz)	8 kHz, 1.544 MHz, 2.048 MHz, 12.96 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz or 77.76 MHz
Output Levels	Two CMOS outputs
Output Frequencies (MHz)
Free-run accuracy	±4.6×10^-6max
PLL bandwidth	0.1 Hz
Ordering Code

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