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SC-B1440 Schematic ( PDF Datasheet ) - Nel Frequency Controls

Teilenummer SC-B1440
Beschreibung LVCMOS
Hersteller Nel Frequency Controls
Logo Nel Frequency Controls Logo 




Gesamt 2 Seiten
SC-B1440 Datasheet, Funktion
www.DataSheet4U.com
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: [email protected] www.nelfc.com





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