Crystal Clock Oscillator
3.3V, PECL, FR4
SEL481 / SEL482 Series
Technical Data
Frequency Range:
200 MHz to 670 MHz
Frequency Stability:
±20, ±25, ±50 or ±100 ppm over all conditions: calibration tolerance,
operating temperature, rated input (supply) voltage, load, *aging, shock
and vibration.
*Aging:
30 days (±7ppm in 10 years typical)
Temperature Range:
Operating:
Storage:
0 to +70°C or -40 to +85°C
-55 to +125°C
+3.3V PECL
Supply Voltage (VCC):
Supply Current:
Output Drive:
85mA typ, 110mA max
Symmetry:
Rise & Fall Times:
Logic 0:
Logic 1:
Load:
Accumulated Jitter:
Phase Jitter:
Total Jitter:
45/55% max @ VBB or Complementary Outputs Crossing
550ps typ, 850ps max, 20% to 80% of waveform
≤ VCC -1.620V (-40 to 85°C )
≥ VCC -1.025V (0 to +70°C), VCC -1.085V (-40 to 85°C)
50Ω to VCC -2V
10ps RMS (1-sigma) max, accumulated in 20,000 adjacent periods
3ps RMS (1-sigma) max, in 12kHz to 40MHz Freq. Band
50ps peak-to-peak max in 100,000 random periods
ACTUAL SIZE
Description
A crystal controlled, high frequency,
highly stable oscillator, compatible with
LVPECLlogic.Theoutputcanbedisabled
tofacilitatetestingorcombiningwithmul-
tiple clocks. The oscillator is packaged
in leadless SMD FR4 SO20 available in
four (4) or six (6) pad configurations (see
partnumberbuilder)andachievesexcep-
tional frequency stability. This oscillator
is ideal for today's automated assembly
environments.
Output Enable/Disable for SEL481x (n/a for SEL4810):
Output Enable Voltage:
Disable Voltage:
Output Enable/Disable for SEL482x:
Output Enable:
≤ Level 0 or open
≥ Level 1 (Q & Q outputs disabled to High Impedance)
≥ Level 1 or open
≤ Level 0 (Q & Q outputs disabled to High Impdeance)
Output Disable:
Mechanical:
Shock:
Solderability:
Terminal Strength:
Vibration:
MIL-STD-883, Method 2002, Condition B
MIL-STD-883, Method 2003
MIL-STD-883, Method 2004, Condition D
MIL-STD-883, Method 2007, Condition A
MIL-STD-202, Method 210, Condition I or J
MIL-STD-202, Method 215
Applications & Features
• SONET/SDH/DWDM linecards
• XGigE NICs
Resistance toSoldering Heat:
Solvent Resistance:
• Optical SOHO FTTC/FTTP OC-12
& STM-4 first/last mile networking
• 3.3V PECL (LVPECL) capability
• Frequency range from 200 to
670MHz
Environmental:
Thermal Shock:
Moisture Resistance:
MIL-STD-883, Method 1011, Condition A
MIL-STD-833, Method 1004
• Disable output feature available
• Economical and rugged FR4 package
• Guaranteed long-term aging avail-
able, consult SaRonix for details
• Designed for standard reflow and
washing techniques
Solder Reflow Guide
Output Waveform
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• Available on tape & reel; 16mm tape,
500pcs per reel
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• See SEL393x Series for frequencies
≤ 200MHz
• See SEL381x Series for comparable
performance in a smaller ceramic
5x7mm package
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• See SDS3811 Series for new LVDS
capability in a smaller ceramic
5x7mm package
DS-235 REV A 08/02/04
www.pericom.com
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