NEL SCC1440, SCC1441, SCC1447, SCC1449, SCC144A Datasheet

357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone [phone] FAX [phone]

Email: [e-mail]

www.nelfc.com

LVCMOS (1.8V)

SJ-C1440 Series

PRELIMINARY

Description

The SJ-C1440 Series of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible
signals for bus connected systems. Supplying Pin 1 of the SJ-C1440 units with a logic “1" or open enables
its pin 3 output. In the disabled mode, pin 3 presents a high impedance to the load.

Features

• Wide frequency range– 30.0MHz to 100.0MHz

• User specified tolerance available

• Will withstand vapor phase temperatures of 253°C
for 4 minutes maximum

• Space-saving alternative to discrete component
oscillators

• High shock resistance, to 3000g

• Metal lid electrically connected to ground to reduce
EMI

• High Q Crystal actively
tuned oscillator circuit

• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions

• Low Jitter - Wavecrest jitter characterization
available

• 1.8Volt operation

• Power supply decoupling internal

• No internal PLL avoids cascading PLL problems

• Low power consumption

• Gold plated leads

Electrical Connection

Pin Connection

1 Enable Input
2 Grd & Case
3 Output
4 V

DD

CRYSTAL CLOCK OSCILLATORS

Data Sheet 0210A

Rev. C

357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A. Phone [phone] FAX [phone]

Email: [e-mail]

www.nelfc.com

SJ-C1440 Series Continued
LVCMOS

Operating Conditions and Output Characteristics

Electrical Characteristics

Parameter Symbol Conditions Min Typical Max

Frequency ----- ----- 30.0MHz ----- 100.0MHz
Duty Cycle ----- @ V

DD

/2 45/55% ----- 55/45%
Logic 0 VOL @ 600µA ----- 0.1V 0.2V
Logic 1

VOH @ 600µA VDD-0.2V VDD-0.1V ----­Rise & Fall Time tr,tf 10-90% ----- 1 ns 3.5 ns
Tpz ----- ----- ----- ----- 100 ns
Jitter, RMS

(2)

----- ----- ----- ----- 3 psec
Enable Voltage ----- ----- 1.3V ----- ----­Disable Voltage ----- ----- ----- ----- 0.5V
Frequency Stability

(1)

dF/F Overall conditions including: -100ppm ----- +100ppm

voltage, calibration, temp.,
10 yr aging, shock, vibration

General Characteristics

Parameter Symbol Conditions Min Typical Max

Supply Voltage VDD ----- 1.71V 1.8V 1.89V
Supply Current IDD No Load 0.0 mA 10mA 20mA
Output current IO ----- 0.0 mA ----- ±25.0 mA
Operating temperature TA ----- 0°C ----- 70°C
Storage temperature TS ----- -55°C ----- 125°C
Power Dissipation P

D

----- ----- ----- 38 mW
Lead temperature TL Soldering, 10 sec. ----- ----- 300°C
Load ---- ----- ----- ----- 15pf
Start-up time t

S

----- ----- 2 ms 10 ms

Environmental and Mechanical Characteristics

Mechanical Shock Per MIL-STD-202, Method 213, Condition E
Thermal Shock Per MIL-STD-833, Method 1011, Condition A
Vibration 0.060" double amplitude 10 Hz to 55 Hz, 35g’s 55Hz to 2000 Hz
Soldering Condition 300°C for 10 seconds
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) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.

Test Load:

Rev. C

CRYSTAL CLOCK OSCILLATORS

SJ - C144X - FREQ

Package Code

Tolerance/Performance

SJ 4 J Lead SMD 0 ±100ppm 0-70°C
1 ±50ppm 0-70°C

Input Voltage

7 ±25ppm 0-70°C
Code Specification 9 Customer Specific
A 3.3V A ±20ppm 0-70°C
B 2.5V B ±50ppm -40 to +85°C
C 1.8 V C ±100ppm -40 to +85°C

5.0V

Creating a Part Number

Data Sheet 0210A