Available at Digi-Key www.digikey.com 5x7mm Precision TCXO Model D75A Description: 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com US Headquarters: 630-851-4722 European Headquarters: +353-61-472221 Features: The Connor-Winfield’s D75A is a 5x7mm Surface Mount Temperature Compensated Crystal Controlled Oscillator (TCXO) with a Tri-State LVCMOS output. Through the use of Analog Temperature Compensation, the D75A is capable of holding sub 1-ppm stabilities over the 0 to 70°C temperature range. The D75A meets STRATUM 3 requirements. • 3.3 Vdc Operation • LVCMOS Output • Frequency Stability: ± 0.28 ppm • Temperature Range: 0 to 70°C • Low Jitter <1ps RMS • Tri-State Enable/Disable Function • 5x7mm Surface Mount Package • Tape and Reel Packaging • RoHS Compliant / Pb Free D7 5 12 A 11 .8 4 MH 4 Z Applications: • • • • • • IEEE 1588 Applications Synchronous Ethernet slave clocks, ITU-T G.8262 EEC options 1 & 2 Compliant to Stratum 3, GR-1244-CORE & GR-253-CORE Wireless Communications Small Cells Test and Measurement Absolute Maximum Ratings Parameter Storage Temperature Supply Voltage (Vcc) Input Voltage Minimum Nominal Maximum Units -55 -0.5 -0.5 - - - 85 6.0 Vcc+0.5 °C Vdc Vdc Maximum Units Notes Operating Specifications Parameter Minimum Nominal Frequency (Fo) Frequency Calibration @ 25 °C Frequency Stability vs. Temperature Holdover Stability (Over 24 Hours) Frequency vs. Load Stability Frequency vs. Voltage Stability Static Temperature Hysteresis Total Frequency Tolerance: Operating Temperature Range: Supply Voltage (Vcc) Supply Current (Icc) Period Jitter Integrated Phase Jitter SSB Phase Noise (Fo = 10 MHz) @10Hz offset @ 100Hz offset @ 1KHz offset @ 10KHz offset @ 100KHz offset Start-up Time Nominal - 10.0, 12.8, 19.2, or 20.0 -1.0 - -0.28 - -0.32 - -0.20 - -0.20 - - - -4.6 - 0 - 3.135 3.3 - - - 3 - 0.5 - - - - - - -80 -110 -135 -150 -150 - - 1.0 0.28 0.32 0.20 0.20 0.4 4.6 70 3.465 6 5 1.0 - - - - - 10 Notes MHz ppm 1 ppm 2 ppm 3 ppm ±5% ppm ±5% ppmAbsolute, 4 ppm 5 °C Vdc ±5% mA ps rms ps rms 6 dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz ms Enable / Disable Input Characteristics (Pad 8) Parameter Enable Voltage (High) Disable Voltage (Low) Minimum Nominal 70%Vcc - - Maximum - 30%Vcc Units Notes Vdc Vdc 7 7 LVCMOS Output Characteristics Parameter Load Voltage (High) (Voh) (Low) (Vol) Duty Cycle at 50% of Vcc Rise / Fall Time 10% to 90% Notes: Bulletin Page Revision Date Tx236 1 of 3 03 09 Jan 2014 Minimum Nominal Maximum - 90%Vcc - 45 - 15 - - 50 - - - 10%Vcc 55 8 Units Notes pF Vdc Vdc % ns 8 1. Initial calibration @ 25°C. Specifications at time of shipment after 48 hours of operation. 2. Frequency stability vs. change in temperature. [±(Fmax - Fmin)/(2*Fo]). 3. Inclusive of frequency stability, supply voltage change (±1%), load change, aging, for 24 hours. 4. Frequency change after reciprocal temperature ramped over the operating range. Frequency measured before and after at 25°C. 5. Inclusive of calibration @ 25C, frequency vs. change in temperature, change in supply voltage (±5%), load change (±5%), reflow soldering process and 20 years aging, referenced to Fo 6. BW = 12 KHz to 20 MHz. 7. Leave Pad 8 unconnected if enable / disable function is not required. When tri-stated, the output stage is disabled but the oscillator and compensation circuit are still active (current consumption < 1 mA). 8. For best performance it is recommended that the circuit connected to this output should have an equivalent input capacitance of 15pF. 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com Package Characteristics Package Hermetically sealed crystal mounted on a ceramic package Vibration: Shock: Soldering Process; Vibration per Mil Std 883E Method 2007.3 Test Condition A Mechanical Shock per Mil Std 883E Method 2002.4 Test Condition B. RoHS compliant lead free. See soldering profile on page 2. Environmental Characteristics Ordering Information D75A-010.0M, D75A-012.8M, D75A-019.2M or D75A-020.0M Package Layout Suggested Pad Layout 0.295 (7.49mm) 0.079 Max. (2.0mm) 0.276 ±0.006 (7.0mm) 0.051 (1.28mm) 0.030 (0.76mm) 8 0.037 (0.94mm) 0.025(6 Places) (0.635mm) Pin 1 1 0.030 (0.762mm) (4 Places) 2 10 4 8 7 0.215 (5.46mm) 0.040 (1.02mm) (6 Places) 7 6 5 9 Top View 10 4 1 2 3 0.051 (1.28mm) 0.100 (2.54mm) Bottom View 9 0.038 (0.965mm) (4 Places) 3 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: Keep Out Area 0.197 ±0.006 (5.0mm) D75A 1144 12.8 MHZ Pad Connections 5 6 Dimensional Tolerance: ±.005 (.127mm) ±.02 (.508mm) 0.100 (2.54mm) * Do not route any traces in the keep out area. It is recommended the next layer under the keep out area is to be ground plane. Do Not Connect Do Not Connect Do Not Connect Ground Output Do Not Connect Do Not Connect Tri-State Enable / Disable Supply Voltage Vcc N/C Output Waveform Design Recommendations Vcc, should have a large copper area for reduced inductance. Connect a 0.01uF bypass capacitor <0.1”(2.54mm) from the pad. 8 6 5 9 4 10 1 3 Top View Ground, should have a large copper area for reduced inductance. 50 Ohm trace <1”by design Vcc 0.010”(0.254mm) Recommended clearance inductance for internal copper flood. 1V/Div Buffer Ground Top View Test Circuit Ground DNC OSC 50 Ohm Trace Without Output Vias Buffer 1 N/C DNC DNC 2 3 10 4 9 5 Ground TOP LAYER GROUND LAYER ....... Vcc Supply Voltage 8 7 BOTTOM LAYER Attention: To achieve optimal frequency stability, and in some cases to meet the specification stated on this data sheet, it is required that the circuit connected to this TCXO output must have the equivalent input capacitance that is specified by the nominal load capacitance. Deviations from the nominal load capacitance will have a graduated effect on the stability of approximately 20 ppb per pF load difference. 15 pF 0.1 uF Bypass 10 nF Bypass Enable/ DNC DNC Disable DNC = Do Not Connect Bulletin Page Revision Date Specifications subject to change without notification. See Connor-Winfield's website for latest revision. All dimensions in inches. © Copyright 2014 The Connor-Winfield Corporation Not intended for life support applications. Output 6 Tx236 2 of 3 03 09 Jan 2014 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com Tape and Reel Dimensions Solder Profile PIN 1 Temperature 260°C 260°C 220°C 180°C .69 (17.5mm) 8.46 DIA (216mm DIA) .08 (2.0mm) 150°C .31 .08 120°C (7.9mm) (2.0mm) .21 (5.4mm) 0 9.84 DIA (250mm DIA) .157 (4.0mm) .08 (2.0mm) 3.15 (80mm) .315 (8.0mm) Direction Of Feed (Customer) .06 DIA 10 s Up to 120 s 60 to 90 s Typical Typical Meets IPC/JEDEC J-STD-020C (1.5mm DIA) 1.00 DIA (25mm DIA) .295 (7.5mm) MEETS EIA-481A and EIAJ-1009B 2,000 PCS/REEL .07 (1.75mm) .83 (16.0mm) Bulletin Page Revision Date Specifications subject to change without notification. See Connor-Winfield's website for latest revision. All dimensions in inches. © Copyright 2014 The Connor-Winfield Corporation Not intended for life support applications. Tx236 3 of 3 03 09 Jan 2014