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Nel Frequency Controls
Nel Frequency Controls

SC-B1440 Datasheet Preview

SC-B1440 Datasheet

LVCMOS

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SC-B1440 pdf
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SC-B1440
Series
LVCMOS
SC-B1440 Series Rev J
Frequency Range: 70.0 MHz to 220.0 MHz
Description
The SC-B1440 Series of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible signals
for bus connected systems. Supplying Pin 1 of the SC-B1440 units with a logic “1” or open enables its Pin 3
output. In the disable mode, Pin 3 presents a high impedance to the load.
Size, mm
5x7
I/O
4 pad
Supply Voltage
3.3V / 2.5V / 5V
Features
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• Low jitter - Wavecrest jitter characterization avail-
able
• Wide frequency range—70.0 MHz to 220.0 MHz
(Contact factory for other frequencies)
• User specified tolerance available
• Will withstand vapor phase temperatures
of 253°C for 4 minutes maximum
• Space-saving alternative to discrete
component oscillators
• 2.5 Volt operation
• High shock resistance, to 1000g
• High Q crystal actively tuned oscillator circuit
• Power supply decoupling internal
• No internal PLL avoids cascading PLL problems
• High frequencies due to proprietary design
• Metal lid electrically connected to ground to
reduce EMI
• Gold plated pads
• RoHS Compliant, Lead Free Construction
Package Code
SC 4 pad 5x7 mm SMD
Input Voltage
Code Specification
A 3.3 V
B 2.5 V
5V
Creating a Part Number
SC - B144X - FREQ
Tolerance/Performance
0 ±100 ppm 0-70°C
1 ±50 ppm 0-70°C
7 ±25 ppm 0-70°C
9 Customer Specific
A ±20 ppm 0-70°C
B ±50 ppm -40 to +85°C
C ±100 ppm -40 to +85°C
Drawing Specifications
For the most up to date speci-
fications on each NEL prod-
uct, log on to our website—
www.nelfc.com
Dimensions shown in inches and millimeters.
All tolerances are ±0.005 inches (±0.127mm) unless otherwise specified.
Electrical Connection
Pin Connection
1 Enable/Disable
2 Ground
3 Output
4 VDD
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone: 262-763-3591
Fax: 262-763-2881 Email: nelsales@nelfc.com www.nelfc.com



Nel Frequency Controls
Nel Frequency Controls

SC-B1440 Datasheet Preview

SC-B1440 Datasheet

LVCMOS

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SC-B1440 pdf
LVCMOS
SC-B1440 Series Rev J
Frequency Range: 70.0 MHz to 220.0 MHz
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Symbol
Frequency
Duty Cycle
Logic 0
Logic 1
Rise & Fall Time
Jitter, RMS(2)
Tpz
Enable Voltage
Disable Voltage
Frequency Stability(1)
VOL
VOH
tr—, tf
dF/F
Conditions
@ VDD/2
@ 600 µA
@ 600 µA
10-90% VO
Overtone
Overall conditions including:
voltage, calibration, temp.,
10 yr aging, shock, vibration
Min
70.0 MHz
45/55%
VDD -0.2 V
1.6 V
-100 ppm
Typical
Max
220.0 MHz
55/45%
0.2 V
2.0 ns
3 psec
100 ns
0.4 V
+100 ppm
General Characteristics
Parameter
Supply Voltage(3)
Supply Current
Output Current
Operating Temperature
Storage Temperature
Power Dissipation
Lead Temperature
Load
Start-up Time
Symbol
VDD
IDD
IO
TA
TS
PD
TL
tS
Conditions
No Load
Low level Output Current
Soldering, 10 sec.
Min
2.375 V
0.0 mA
0.0 mA
0ºC
-55ºC
Typical
2.5 V
40 mA
Environmental and Mechanical Characteristics
Mechanical Shock
Thermal Shock
Vibration
Soldering Condition
Hermetic Seal
Per MIL-STD-202, Method 213, Condition E
Per MIL-STD-833, Method 1011, Condition A
0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55 Hz to 2000 Hz
300ºC for 10 seconds
Leak rate less than 1 x 10-8 atm.cc/sec of helium
Footnotes:
1) Standard frequency stability (±20, ±25, ±50 ppm & others available).
2) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
RMS jitter bandwidth of 12kHz to 20MHz.
3) Internal high frequency power source decoupling.
Max
2.625 V
60 mA
±25.0 mA
70ºC
125ºC
158 mW
300ºC
15 pf
10 ms
Test Load


Part Number SC-B1440
Description LVCMOS
Maker Nel Frequency Controls
Total Page 2 Pages
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