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| Frequency Timing and Translation Modules Model Name NW36M25LA n Main Application SONET, SDH, FTTH, Communications equipment NEW Frequency Controlled Crystal Oscillator (FCXO) Advanced Stratum3 Module n Features l Four inputs, Stratum 3 solution for the Synchronous Timing Source in SONET/SDH network elements. l Accepts 4 reference inputs in 9 steps from 8 kHz to 77.76 MHz (See specification below) l Compliant with Telecordia GR1244CORE, GR253 and ITU-T G.812 / G.813. l Hit-less reference switching. l Frequency ramp control during reference switching. l Supports Master / Slave operation l 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. * Module markings may be changed without notice. n Specifications Item Supply Voltage (VCC) Current Consumption Operating Temp. Range Input Levels Input Reference Frequency Output Levels Output Frequency 1 Output Frequency 2,3 Free-run accuracy Holdover accuracy PLL bandwidth (user programmable) Model NW36M25LA +3.3 V DC 5% 150 mA typ 0 to +70C 4-CMOS 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 Three CMOS outputs OUTPUT 1: 12.96 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz or 77.76 MHz M/S_OUT: 8 kHz, BITS_CLK: 1.544 MHz or 2.048 MHz 4.6x10-6 max. 0.37x10-6 max. 0.025 Hz to 1.6 Hz n List of Ordering Codes Output frequency (MHz) OUTPUT 1: One selectable up to 77.76 MHz Ordering Code NW36M25LA-[ ]-NSA3437A [ ]: OUTPUT1 frequency to order. For example, in 19.44 MHz case, NW36M25LA-19.44M-NSA3437A n Dimensions 36.830.5 28 15 mm PAD No. #1 #2 #3 #4 #5 #6 #7 Connection LOS LOL M/S REF REF1 REF2 REF3 REF4 TDI TMS TRST BITS_CLK M/S_OUT OUTPUT1 NC PAD No. #15 #16 #17 #18 #19 #20 #21 #22 #33 #24 #25 #26 #27 #28 Connection NC T1/E1 HOLD/GOOD TDO TCK GND SPI_ENBL SPI_IN VCC SPI_ENBL RESET SPI_OUT SPI_INT MASTER SELECT 25.40.5 21.590.3 www..com 6.0max 1 14 3.180.3 #8 #9 #10 #11 #12 1.00.1 0.4570.13 33.020.2 2.540.2 #13 #14 co33_080205_NW36M25LA_e1 |
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