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PDF NW34M25WA Data sheet ( Hoja de datos )
| Número de pieza | NW34M25WA | |
| Descripción | Frequency Controlled Crystal Oscillator | |
| Fabricantes | NIHON DEMPA KOGYO | |
| Logotipo |  |
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Frequency Timing and Translation Modules NEW
Model Name NW34M25WA
Frequency Controlled Crystal Oscillator (FCXO)
Clock Generator Modules
n Main Application
SONET, SDH, FTTH, Communications equipment
n Features
l Dual reference inputs, LVPECL and CMOS outputs
l Simple hardware control for operational mode
l Automatic Free-run upon loss of input reference
l Lock acquisition time < 1 second
* Module markings may be changed without notice.
n Specifications
Item
Supply Voltage (VCC)
Current Consumption
Operating Temp. Range
Input Level
Input Reference Frequency
Output Levels
Output Frequencies (MHz)
Free-run accuracy (at 25°C)
Capture / pull-in range
Model
n List of Ordering Codes
NW34M25WA
+3.3 V DC ±5%
200 mA typ
0 to +70°C
2-CMOS
19.44 MHz*
2(3) LVPECL and 1 CMOS
77.76 (LVPECL1, CMOS) and 155.52 (LVPECL0)*
±20×10−6 max.
±25 ×10−6 min.
(*other frequencies are available)
Input reference
frequency (MHz)
19.44
LVPECL 0
155.52
Output frequencies (MHz)
LVPECL 1 LVPECL 2
77.76
High-Z
CMOS
77.76
Ordering Code
NW34M25WA-155.52M-NSA3436A
n Dimensions
34.3±0.3
www.DataSheet4U.com#1 #2 #3 #4 #5 #6 #7 #8 #9 #10
2.54±0.2
#20 #19 #18 #17 #16 #15 #14 #13 #12 #11
1.8±0.2 2.54±0.15
mm
25.4±0.3
4.8max
20.4±0.2
PAD No. Connection
#1 Alarm Output
#2 Ref A Input
#3 DNC
#4 Ref B Input
#5 OPT (LVPECL 2+)
#6 OPT (LVPECL 2–)
#7 VCC
#8 GND
#9 LVPECL 1+
#10 LVPECL 1–
#11 LVPECL 0+
#12 LVPECL 0–
#13 GND
#14 VCC
#15 CMOS Output
#16 DNC
#17 DNC
#18 DNC
#19 Control 1
#20 Control 2
DNC : Do not connect
n Control Functions
Control 1
0
0
1
1
Control 2
0
1
0
1
Mode of operation
Lock to Ref A
Lock to Ref B
Forced Free-run
Outputs are Tri-stated
co34_080205_NW34M25WA_e1
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| PDF Descargar | [ Datasheet NW34M25WA.PDF ] | |
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