NIHON DEMPA KOGYO (NDK) CO.,LTD.

Four inputs, Stratum 3 solution for the Synchronous Timing Source in SONET/SDH network elements.
Accepts 4 reference inputs in 9 steps from 8 kHz to 77.76 MHz (See specification below)
Compliant with Telecordia GR1244CORE, GR253 and ITU-T G.812 / G.813.
Hit-less reference switching.
Frequency ramp control during reference switching.
Supports Master / Slave operation.
Three output signals: one selectable (See specification below) up to 77.76 MHz, one fixed at 8 kHz and 1.544 MHz or 2.048 MHz BITS output.

Supply Voltage (VCC)	+3.3V±5%
Current Consumption	150 mA typ.
Operating Temp. Range	0 to +70 °C
Input Levels	4 - CMOS
Input Reference Frequency	8kHz, 1.544MHz, 2.048MHz, 12.96MHz, 19.44MHz, 25.92MHz, 38.88MHz, 51.84MHz, 77.76MHz
Output Levels	Three CMOS outputs
Output Frequency 1
Output Frequency 2,3	M/S_OUT:8kHz, BITS_CLK:1.544MHz or 2.048MHz
Free-run accuracy	±4.6×10^-6max
Holdover accuracy	±0.37×10^-6max
PLL bandwidth (user programmable)	0.025Hz to 1.6Hz
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