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PDF NW36M25LA Data sheet ( Hoja de datos )
| Número de pieza | NW36M25LA | |
| Descripción | Frequency Controlled Crystal Oscillator | |
| Fabricantes | NIHON DEMPA KOGYO | |
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Frequency Timing and Translation Modules NEW
Model Name NW36M25LA
Frequency Controlled Crystal Oscillator (FCXO)
Advanced Stratum3 Module
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
Item Model
NW36M25LA
Supply Voltage (VCC)
+3.3 V DC ±5%
Current Consumption
150 mA typ
Operating Temp. Range
0 to +70°C
Input Levels
4-CMOS
Input Reference Frequency
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
Three CMOS outputs
Output Frequency 1
OUTPUT 1: 12.96 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz or 77.76 MHz
Output Frequency 2,3
M/S_OUT: 8 kHz, BITS_CLK: 1.544 MHz or 2.048 MHz
Free-run accuracy
±4.6×10−6 max.
Holdover accuracy
±0.37×10−6 max.
PLL bandwidth (user programmable)
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
36.83±0.5
28
15
25.4±0.5
mm
21.59±0.3
1
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14 3.18±0.3
6.0max
0.457±0.13
33.02±0.2
1.0±0.1
2.54±0.2
PAD No.
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
#11
#12
#13
#14
Connection
LOS
LOL
M/S REF
REF1
REF2
REF3
REF4
TDI
TMS
TRST
BITS_CLK
M/S_OUT
OUTPUT1
NC
PAD No. Connection
#15 NC
#16 T1/E1
#17 HOLD/GOOD
#18 TDO
#19 TCK
#20 GND
#21 SPI_ENBL
#22 SPI_IN
#33 VCC
#24 SPI_ENBL
#25 RESET
#26 SPI_OUT
#27 SPI_INT
#28 MASTER SELECT
co33_080205_NW36M25LA_e1
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