1180026-XXX 20.000 MHz OCXO Stratum 3E ♦Frequency Stability to Stratum 3E of GR-1244 ♦Recommended for or use with Zarlink SONET/SDH System Synchronizer Chip Sets ♦+3.3Vdc or +5.0Vdc Operation ♦Precision Low Aging “SC” Cut Crystal ♦Through-Hole or Surface Mount Configuration ♦RoHS Compliant Electrical Characteristics Parameter Sym Conditions Min Typical Max Unit 3.135 4.75 3.30 5.0 3.465 5.25 Vdc Vdc 3.5 4.0 W Power Requirements Power Supply ¹ Vcc Turn-On Power Pmax ± 5% ± 5% Vcc = Max. Std. Load Steady State Power Pss Vcc = Max Std. Load @ +25°C 1.5 W Start-Up Time Tsu To 90% Amplitude 50 mSec Warm-Up Time Twu To meet full spec @ +25°C 15 minutes Frequency Stabilities Center Frequency fnom Initial Tolerance fcal Frequency vs. Temperature ∆f/∆Temp 20.000 MHz ± 0.3 ± 0.5 ppm Operating Temperature ¹ ±6 ±8 ppb Ta = +25°C (At time of Shipment) Frequency vs. Voltage ∆f/∆Vcc Vcc ± 5% ±1 Frequency vs Time (Aging) ∆f/∆Time per Day 20 years ±1 24 Hour Holdover Stability ∆f/24Hr Inclusive of Temperature, Supply Variation and 24 hours Aging ±8 Total Free-Running Accuracy ∆f/Life All Conditions for 20 years (Reference to fnom) ppb ± 1.5 ppb ppm ± 10 ppb ± 2.1 ppm 60 % 0.1Vcc V V 7 nSec -25 dBc Waveform: HCMOS Output Symmetry Sym @ 50% Level Amplitude Vo Logic “1” Logic “0” Rise/Fall Times tr, tf 20% to 80% Load RL Output to Ground 40 50 0.9Vcc 4 10KΩ // 15pF Sub-Harmonics Phase Noise 1 Offset = 1 Hz -70 -60 dBc/Hz 10 Hz -103 -100 dBc/Hz 100 Hz -130 -125 dBc/Hz 1 KHz -140 -130 dBc/Hz 10 KHz -142 -135 dBc/Hz See Dash Number Table for Voltage and Operating Temperature ♦♦♦ CTS ♦ 171 Covington Dr. ♦ Bloomingdale, IL 60108 ♦ 800-757-6686 ♦ www.ctscorp.com ♦♦♦ REVISION X4 Page 1 of 4 1180026-XXX 20.000 MHz OCXO Stratum 3E Dash Number Table (CTS Dash No. = -XXX) No Air-Flow Shield With Air-Flow Shield CTS Dash No. Package Specification Vcc Operating Temperature Range CTS Dash No. Package Specification Vcc Operating Temperature Range -001 Figure 1 +5.0 Vdc 0°C to +70°C -011 Figure 3 +5.0 Vdc 0°C to +70°C -002 Figure 1 +5.0 Vdc -40°C to +85°C -012 Figure 3 +5.0 Vdc -40°C to +85°C -003 Figure 1 +3.3 Vdc 0°C to +70°C -013 Figure 3 +3.3 Vdc 0°C to +70°C -004 Figure 1 +3.3 Vdc -40°C to +85°C -014 Figure 3 +3.3 Vdc -40°C to +85°C -005 Figure 2 +5.0 Vdc 0°C to +70°C -015 Figure 4 +5.0 Vdc 0°C to +70°C -006 Figure 2 +5.0 Vdc -40°C to +85°C -016 Figure 4 +5.0 Vdc -40°C to +85°C -007 Figure 2 +3.3 Vdc 0°C to +70°C -017 Figure 4 +3.3 Vdc 0°C to +70°C -008 Figure 2 +3.3 Vdc -40°C to +85°C -018 Figure 4 +3.3 Vdc -40°C to +85°C Complete CTS orderable part number includes 1180026-XXX (where –XXX = CTS Dash No. from this table) Environmental and Mechanical Requirements Storage Temperature : Reflow Soldering : Shock : Vibration : Case : Seal : Surface Mount Base : MSL : 6/6 RoHS Compliance : -55°C to +125°C Will withstand 240°C for 20 seconds 50 G’s 11 ms, Pulse, 3 shocks per axis 10G’s Peak, 20 to 2000 Hz Dual-in-Line Resistance Weld High Temperature FR-4 1 This product is fully compliant to RoHS Directive 2002/95/EC ♦♦♦ CTS ♦ 171 Covington Dr. ♦ Bloomingdale, IL 60108 ♦ 800-757-6686 ♦ www.ctscorp.com ♦♦♦ REVISION X4 Page 2 of 4 1180026-XXX 20.000 MHz OCXO Stratum 3E Package Specifications Figure 1 Figure 2 CTS 1180026-XXX 20.000 MHz S/N XXXXX YYWW Made in China CTS 1180026-XXX 20.000 MHz S/N XXXXX YYWW Made in China TEST # ♦♦♦ CTS ♦ 171 Covington Dr. ♦ Bloomingdale, IL 60108 ♦ 800-757-6686 ♦ www.ctscorp.com ♦♦♦ REVISION X4 Page 3 of 4 1180026-XXX 20.000 MHz OCXO Stratum 3E Package Specifications (continued) Figure 3 Figure 4 CTS 1180026-XXX 20.000 MHz S/N XXXXX YYWW Made in China CTS 1180026-XXX 20.000 MHz S/N XXXXX YYWW Made in China TEST # ♦♦♦ CTS ♦ 171 Covington Dr. ♦ Bloomingdale, IL 60108 ♦ 800-757-6686 ♦ www.ctscorp.com ♦♦♦ REVISION X4 Page 4 of 4