NW36M25LA_14 Datasheet, PDF (1/1 Pages) NIHON DEMPA KOGYO – Frequency Controlled Crystal Oscillator (FCXO) Advanced Stratum3 Module

Crystal Oscillator
Model Name NW36M25LA
■ Main Application
SONET, SDH, FTTH, Communications equipment
Frequency Controlled Crystal Oscillator (FCXO)
Advanced Stratum3 Module
■ Features
● 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 Telcordia 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.
* Module markings may be changed without notice.
■ Specifications
Item
Model
Supply voltage [VCC] (V)
Current consumption (mA)
Operating temperature range (°C)
Storage Temperature Range (°C)
Input level
Input reference frequency (MHz)
Output level
Output frequency 1 (MHz)
Output frequency 2,3 (MHz)
Free-run accuracy
Holdover
PLL bandwidth (Hz)
■ List of Ordering Codes
Output frequency (MHz)
OUTPUT 1: One selectable up to 77.76 MHz
NW36M25LA
+3.3 ± 5 %
Typ. 150
0 to +70
-20 to +85
4-CMOS
0.008, 1.544, 2.048, 12.96, 19.44, 25.92, 38.88, 51.84, 77.76
3-CMOS
OUTPUT 1 : 12.96, 19.44, 25.92, 38.88, 51.84 or 77.76
M/S OUT : 0.008, BITS CLK : 1.544 or 2.048
Max. ±4.6×10^−6
Max. ±0.37×10^−6
0.025 to 1.6 (user programmable)
Ordering Code
NW36M25LA-[ ]-NSA3437A
[ ]: OUTPUT1 frequency to order.
For example, in 19.44 MHz case,
NW36M25LA-19.44M-NSA3437A
■ Dimensions
36.83 ± 0.5
28
15
1
Max. 6.0
0.457 ± 0.13
1
14
33.02 ± 0.2
2.54 ± 0.2
14
28
15
33.02 ± 0.2
mm
21.59 ± 0.3
Pin connections
#1
LOS
#2
LOL
#3
M/S REF
#4
REF1
#5
REF2
#6
REF3
#7
REF4
#8
TDI
#9
TMS
#10
TRST
#11
BITS CLK
#12
M/S OUT
#13
OUTPUT1
#14
DNC
DNC:Do not connect
Pin connections
#15
DNC
#16
T1/E1
#17 HOLD/GOOD
#18
TDO
#19
TCK
#20
GND
#21
SPI ENBL
#22
SPI IN
#23
VCC
#24
SPI ENBL
#25
RESET
#26
SPI OUT
#27
SP INT
#28 MASTER SELECT
fcxo01_111003_NW36M25LA_e