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
LVCMOS
SC-A1460 Series
Description
The SC-A1460 Series of quartz crystal oscillators provide enable/disable 3-state LVCMOS compatible
signals for bus connected systems. Supplying Pin 1 of the SC-A1460 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.
Features
• Wide frequency range–80.0MHz to 135.0MHz
• User specified tolerance available
• Will withstand vapor phase temperatures of 253°C
for 4 minutes maximum
• Space-saving alternative to discrete component
oscillators
• 3.3 Volt operation
• High shock resistance, to 1000g
• Low Jitter - Wavecrest jitter characterization
available
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• High Q Crystal actively tuned oscillator circuit
• 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
Electrical Connection
Pin Connection
1 Enable/Disable
2 Ground
3 Output
4 VDD
CRYSTAL CLOCK OSCILLATORS Data Sheet K2205
Rev. A
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
SC-A1460 Series Continued
LVCMOS
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter Symbol Conditions Min Typical Max
Frequency ----- ----- 80.0MHz ----- 135.0MHz
Duty Cycle ----- @ VDD/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%VO ----- 1.0 ns 2.0 ns
Jitter, RMS(2) ----- Overtone ----- ----- 3 psec
Tpz ----- ----- ----- ----- 100 ns
Enable Voltage ----- ----- 2.0V ----- -----
Disable Voltage ----- ----- ----- ----- 0.8V
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 (3) VDD ----- 3.00V 3.3V 3.60V
Supply Current IDD No Load 0.0 mA 40 mA 60 mA
Output current IO Low level Output Current 0.0 mA ----- ±25.0 mA
Operating temperature TA ------ 0°C ----- 70°C
Storage temperature TS ----- -55°C ----- 125°C
Power Dissipation PD----- ----- ----- 216 mW
Lead temperature TL Soldering, 10 sec. ----- ----- 300°C
Load ----- ----- ----- ----- 15pf
Start-up Time ts----- ----- ----- 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.
3) External high frequency power supply decoupling required.
Rev. A
CRYSTAL CLOCK OSCILLATORS
SC - A146X - FREQ
Package Code Tolerance/Performance
SC 4 pad 5x7mm SMD 0 ±100ppm 0-70°C
1 ±50ppm 0-70°C
7 ±25ppm 0-70°C
Input Voltage 9 Customer Specific
Code Specification A ±20ppm 0-70°C
A 3.3V B ±50ppm -40 to +85°C
5V C ±100ppm -40 to +85°C
Creating a Part Number
Data Sheet K2205