欢迎访问ic37.com |
会员登录 免费注册
发布采购

NW36M25LA-19.44M-NSA3437A 参数 Datasheet PDF下载

NW36M25LA-19.44M-NSA3437A图片预览
型号: NW36M25LA-19.44M-NSA3437A
PDF下载: 下载PDF文件 查看货源
内容描述: 频率控制晶体振荡器( FCXO ) [Frequency Controlled Crystal Oscillator (FCXO)]
分类和应用: 振荡器晶体振荡器石英晶振
文件页数/大小: 1 页 / 85 K
品牌: NDK [ NIHON DEMPA KOGYO ]
   
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 (V
CC
)
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 +70°C
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
±4.6×10
−6
max.
±0.37×10
−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
36.83±0.5
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
25.4±0.5
21.59±0.3
1
14
3.18±0.3
#8
#9
#10
#11
#12
6.0max
1.0±0.1
0.457±0.13
33.02±0.2
2.54±0.2
#13
#14
co33_080205_NW36M25LA_e1