B31-026.0M

Available at Digi-Key 2.5 x 2.0 mm Precision TCXO Model B31 www.digikey.com 2111 Comprehensive Drive 2111 Comprehensive Drive Aurora, Illinois 60505 Aurora, Illinois 60505 Phone: 630- 851- 4722 Phone: 630- 851- 4722 Fax: 630- 851- 5040 Fax: 630- 851- 5040 www.conwin.com www.conwin.com Description: Features: The Connor-Winfield B31 is a 2.5 x 2.0 mm, 3.3 V Clipped Sinewave, Surface Mount, Temperature Compensated Crystal Oscillator (TCXO), designed for applications requiring tight frequency stability in a very small package. The RoHS compliant surface mount package is designed for high-density mounting and is optimum for mass production. • 3.3 Vdc Operation • Clipped Sinewave Output • Frequency Stability: ±0.50 ppm • Temperature Range: -30 to 85°C • Low Jitter: < 1 ps RMS • 2.5 x 2.0 mm SMT Package • Tape and Reel Packaging • RoHS Compliant / Lead Free Absolute Maximum Ratings Parameter Minimum Parameter Minimum Nominal -0.50 -0.2 -0.2 - -1.0 -1.0 -30 3.135 - - - - - - - - - - - - - - - - 3.3 - 3 0.5 -80 -110 -130 -145 -145 - Storage Temperature Supply Voltage (Vcc) -55 -0.5 Nominal - - Maximum 85 6.0 Units Notes Units Notes °C Vdc Operating Specifications Center Frequency: (Fo) Frequency Calibration @ 25 °C Frequency Stability Vs. Temperature: VS. Supply Voltage: VS. Load: Static Temperature Hysteresis: Aging per Year Freq. Shift Due to Solder Reflow: Operating Temperature Range: Supply Voltage (Vcc) ±5% Supply Current (Icc) Period Jitter Integrated Phase Jitter SSB Phase Noise at 10Hz offset SSB Phase Noise at 100Hz offset SSB Phase Noise at 1KHz offset SSB Phase Noise at 10KHz offset SSB Phase Noise at 100KHz offset Start-up Time 10.0 -1.0 - - Maximum 50.0 1.0 0.50 0.2 0.2 0.40 1.0 1.0 85 3.465 2.0 5 1.0 - - - - - 5 MHz ppm 1 ppm 2 ppm ±5% ppm ±5% ppm Absolute, 3 ppm ppm 4 °C Vdc mA ps rms ps rms 5 dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz ms Clipped Sinewave Output Characteristics Parameter Minimum Load (CL) - Output Voltage 0.8 Nominal Maximum Units Notes 10 pF // 10 KOhm 6 - - V pk to pk 7 Package Characteristics Package Hermetically sealed ceramic package and metal cover Ordering Information B31-020.0M, B31-025.0M, B31-040.0M Environmental Characteristics Vibration: Vibration per Mil Std 883E Method 2007.3 Test Condition A Shock: Mechanical Shock per Mil Std 883E Method 2002.4 Test Condition B. Soldering Process: RoHS compliant lead free. See soldering profile on page 2. Bulletin Page Revision Date TX415 1 of 2 03 31 Dec 2019 Notes: 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. Frequency change after reciprocal temperature ramped over the operating range. Frequency measured before and after at 25°C. 4. Within two hours after reflow 5. BW = 12 KHz to 20 MHz. 6. Output is DC coupled. Load capacitor, load resistor, coupling capacitor and by pass capacitors are required components to insure proper operation of this TCXO. 7. For best performance it is recommended that the circuit connected to this output should have an equivalent input capacitance of 10pF. 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com 0.031 Max. (0.8mm Max.) 25.0 0.098 (2.50mm) B31 9D 0.079 (2.0mm) 0.019 (0.47mm) Pin 1 Suggested Pad Layout Pad Connections Package Layout 1: 2: 3: 4: 0.026 (0.65mm) 0.094 No Connection Ground Output Supply Voltage (Vcc) 2 CHARACTER DATE CODE Y = Year M = Month 9 = 2019 A = January 0 = 2020 B = February 1 = 2021 C = March 2 = 2022 D = April E = May F = June G = July H = August J = September K = October M = November N = December 0.057 (2.39mm) (1.45mm) 0.024 (0.62mm) 0.074 Typ (1.89mm) Dimensional Tolerance: +/-008 (+/-0.2mm) Output Waveform Typical Phase Noise Plot 0 200 mV/Div Test Circuit AC Coupling Capacitor 1000 pF * Vcc Supply Voltage 4 3 1 2 10Kohm * 0.1 uF Bypass * 10 nF Bypass * N/C Output 10 pF * * Required components to insure proper operation. Solder Profile Tape and Reel Information Temperature 260°C 260°C 0.331 (8.4mm) Direction of Feed (Customer) 0.157 (4.0mm) 0.157 (4.0mm) 0.079 (2.0mm) 0.059 (1.5mm) 0.059 (1.5mm) DIA 0.069 (1.75mm) 0.138 (3.5mm) 0.315 (8mm) 0.059 (1.5mm) 220°C 180°C 150°C 120°C 0.098 (2.5mm) 7.01 (178mm) 2.36 (60mm) 0.039 (1.0mm) DIA 0 10 s Up to 120 s 60 to 90 s Typical Typical Meets IPC/JEDEC J-STD-020C 0.512 (13mm) DIA Bulletin Page Revision Date Specifications subject to change without notification. See Connor-Winfield's website for latest revision. © Copyright 2019 The Connor-Winfield Corporation Not intended for life support applications. TX415 2 of 2 03 31 Dec 2019