NDK NW36M25LA Frequency controlled crystal oscillator (fcxo) Datasheet

Frequency Timing and Translation Modules
NEW
Frequency Controlled Crystal Oscillator (FCXO)
Advanced Stratum3 Module
Model Name NW36M25LA
n Main Application
SONET, SDH, FTTH, Communications equipment
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.
* Module markings may be changed without notice.
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.
n Specifications
Model
Item
Supply Voltage (VCC)
NW36M25LA
+3.3 V DC ±5%
Current Consumption
150 mA typ
Operating Temp. Range
0 to +70°C
4-CMOS
Input Levels
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
Input Reference Frequency
Three CMOS outputs
Output Levels
OUTPUT 1: 12.96 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz or 77.76 MHz
Output Frequency 1
M/S_OUT: 8 kHz, BITS_CLK: 1.544 MHz or 2.048 MHz
Output Frequency 2,3
±4.6×10−6 max.
Free-run accuracy
±0.37×10−6 max.
Holdover accuracy
0.025 Hz to 1.6 Hz
PLL bandwidth (user programmable)
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
36.83±0.5
28
mm
15
25.4±0.5
21.59±0.3
14
1
3.18±0.3
6.0max
1.0±0.1
0.457±0.13
2.54±0.2
PAD No.
Connection
PAD No.
#1
LOS
#15
Connection
NC
#2
LOL
#16
T1/E1
#3
M/S REF
#17
HOLD/GOOD
#4
REF1
#18
TDO
#5
REF2
#19
TCK
#6
REF3
#20
GND
#7
REF4
#21
SPI_ENBL
#8
TDI
#22
SPI_IN
#9
TMS
#33
VCC
#10
TRST
#24
SPI_ENBL
#11
BITS_CLK
#25
RESET
#12
M/S_OUT
#26
SPI_OUT
#13
OUTPUT1
#27
SPI_INT
#14
NC
#28
MASTER SELECT
33.02±0.2
co33_080205_NW36M25LA_e1
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