
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
HSTL
SD-A2C00 Series
PRELIMINARY
Description
The SD-A2C00 Series of quartz cry s t al oscillators provide HSTL compatible signals. Systems designers
may now specify space-saving, cost-effective packaged HSTL oscillators to meet their timing requirements.
Features
• Wide frequency range–50.0MHz to 250.0MHz
• 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 1000g
• 3.3 volt operation
• Metal lid electrically connected to ground to
reduce EMI
• Fast rise and fall times <800 ps
• High Reliability - NEL HALT/HASS qualified for
crystal oscillator start-up conditions
• Low Jitter - Wavecrest jitter characterization
available
• Overtone technology
• High Q Crystal actively tuned oscillator circuit
• Power supply decoupling internal
• No internal PLL avoids cascading PLL problems
• High frequencies due to proprietary design
• Gold plated pads
Electrical Connection
Pin Connection
1 V
CC
2 Enable/Disable
3 V
EE
4 Output
5 Output
Complement
6 V
CCO
CRYSTAL CLOCK OSCILLATORS
Data Sheet 0208D
Rev. B

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
SD-A2C00 Series Continued
HSTL
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter Symbol Conditions Min Typical Max
Frequency ----- ----- 50.0MHz ----- 250.0MHz
Duty Cycle
(2)
----- @ VO /2 45/55% ----- 55/45%
Logic 0
(2)
VOL ----- 0.0V ----- 0.4V
Logic 1
(2)
VOH ----- 1.0V ----- 1.2V
Rise & Fall Time
(2)
tr,tf 20-80%VO ----- ----- 800 psec
T
pd
(4)
----- ----- -200 psec ----- +200 psec
Jitter, RMS
(3)
----- ----- ----- ----- 3 psec
Enable (Low) voltage ----- ----- ----- ----- 800mV
Disable (High) voltage ----- ----- 2.00V ----- ----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 VCC ----- 3.15V 3.3V 3.45V
Output Supply Current V
CCO
----- 1.6V ----- 2.00V
Supply Current ICC Ground Current 0.0 mA ----- 100 mA
Output current IO Continuous Output Current 0.0 mA ----- ±50.0 mA
Operating temperature TA ------ 0°C ----- 70°C
Storage temperature TS ----- -55°C ----- 125°C
Power Dissipation P
D
----- ----- ----- 345 mW
Lead temperature TL Soldering, 10 sec. ----- ----- 300°C
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) Test Load per HSTL Class I of EIA/JEDEC Standard EIA/JESD8-6.
3) Jitter performance is frequency dependent. Please contact factory for full Wavecrest characterization.
4) Tpd is phse shift between the falling edge of pin 4 and the rising edge of pin 5.
5) Open to enable pin also enables the output.
Rev. B
CRYSTAL CLOCK OSCILLATORS
SD - A2C0X - FREQ
Package Code
Tolerance/Performance
SD 6 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 0208D