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SD-B2980 PDF даташит

Спецификация SD-B2980 изготовлена ​​​​«NEL» и имеет функцию, называемую «CRYSTAL CLOCK OSCILLATORS».

Детали детали

Номер произв SD-B2980
Описание CRYSTAL CLOCK OSCILLATORS
Производители NEL
логотип NEL логотип 

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SD-B2980 Даташит, Описание, Даташиты
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CRYSTAL CLOCK OSCILLATORS
Differential Positive ECL (DPECL)
SD-B2980 Series
Data Sheet 0306A
Rev. P
Description
The SD-B2980 Series of quartz crystal oscillators provide DPECL compatible signals. Systems designers
may now specify space-saving, cost-effective packaged PECL oscillators to meet their timing requirements.
Features
• Wide frequency range–60.0MHz to 312.5MHz
• User specified tolerance available
• Space-saving alternative to discrete component
oscillators
• High shock resistance, to 1000g
• 2.5 volt operation
• Overtone technology
Electrical Connection
Pin Connection
1 Enable/Disable
2 N.C.
3 VEE /Ground
4 Output
5 /Output
6 VCC
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• Wavecrest jitter characterization available
• High Q Crystal actively tuned oscillator circuit
• No internal PLL avoids cascading PLL problems
• Power supply decoupling internal
• Metal lid electrically connected to ground to
reduce EMI
• Gold plated pads
• RoHS Compliant, Lead Free Construction
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email: [email protected] www.nelfc.com









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SD-B2980 Даташит, Описание, Даташиты
CRYSTAL CLOCK OSCILLATORS
Data Sheet 0306A
SD-B2980 Series Continued
Differential Positive ECL (DPECL)
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Symbol
Conditions
Min
Frequency
----- -----
60.0MHz
Duty Cycle
Logic 0 (2)
Logic 1(2)
Rise & Fall Time
TPD(6)
Jitter, RMS(3)
----- @ VCC-1.29V 45/55%
VOL -----
-----
VOH -----
VCC-1.025V
tr,tf 20-80%VO with 50 ohm load to VCC-2V -----
----- -----
-200 psec
----- -----
-----
Enable Voltage(4)
Disable Voltage
Frequency Stability (1)
-----
-----
dF/F
with VEE = 0V
with VEE = 0V
Overall conditions including:
1.6V
-----
-100ppm
voltage, calibration, temp.,
10 yr aging, shock, vibration
Typical
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
General Characteristics
Parameter
Symbol
Conditions
Min
Supply Voltage(5)
Supply Current
Output current
Operating temperature
Storage temperature
Power Dissipation
Solder temperature
Load
Start-up time
VCC -----
2.375V
ICC
50 ohm termination
0.0 mA
To 2.00V below VCC
IO Low level Output Current 0.0 mA
TA ------
0°C
TS -----
-55°C
PD -----
-----
TL 4 minutes
-----
50 Ohm to VCC-2V or Thevenin Equivalent, Bias Required
tS -----
-----
Typical
2.5V
-----
-----
-----
-----
-----
-----
2 ms
Environmental and Mechanical Characteristics
Mechanical Shock
Per MIL-STD-202, Method 213, Condition E
Thermal Shock
Per MIL-STD-883, Method 1011, Condition A
Vibration
0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55Hz to 2000 Hz
Hermetic Seal
Leak rate less than 1 x 10 -8 atm.cc/sec of helium
Footnotes:
1) Standard frequency stability (±20,±25,±50ppm & others available)
2) VOL, VOH, referenced to ground (VEE) with VCC = 2.5V
3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
4) Open to enable pin also enables the output.
5) Internal high frequency power source decoupling.
6) Tpd is phase shift between the falling edge of pin 4 at 2.0V and the rising edge of pin 5 at 2.01V.
Rev. P
Max
312.5MHz
55/45%
VCC-1.62V
-----
700 psec
+200 psec
1 psec
-----
0.4V
+100ppm
Max
2.625V
80 mA
±50.0 mA
70°C
125°C
210 mW
253°C
10 ms
Creating a Part Number
SD - B298X - FREQ
Package Code
SD 6 pad 5x7mm SMD
Input Voltage
Code Specification
A 3.3V
B 2.5V
5V
Tolerance/Performance
0 ±100ppm 0-70°C
1 ±50ppm 0-70°C
7 ±25ppm 0-70°C
9 Customer Specific
A ±20ppm 0-70°C
B ±50ppm -40 to +85°C
C ±100ppm -40 to +85°C
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone 262/763-3591 FAX 262/763-2881
Email: [email protected] www.nelfc.com










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Номер в каталогеОписаниеПроизводители
SD-B2980CRYSTAL CLOCK OSCILLATORSNEL
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