Temperature Compensated Crystal Oscillators TCXO, M57T series, HCMOS Output, 32.768 KHz MERCURY Since 1973 Features: 5x7x2.5 mm ceramic SMD TCXOs with HCMOS square wave output 0.01 uF decoupling capacitor built-in RoHS compliant General Specifications (at+25°C and specified input voltage) Product Series Frequency Output Wave From Initial Calibration Tolerance (1) Frequency Stability (ppm) Temperature -10 to +60°C Range -20 to +70°C M57T 32.768 KHz Square wave. Wave form code is “T” ±3 ppm at +25°C ± 1 ppm ±1.5 ppm ±2.0 ppm ±2.5 ppm √ √ √ √ √ √ √ √ -30 to +75°C √ √ √ √ -40 to +85°C Frequency Stability vs Aging vs Voltage Change vs Load Change vs reflow U √ √ √ Standard Î Supply Voltage (VDD) Output Voltage Level Vdd=3.0V ±1.0 ppm max. first year at +25°C ±0.3 ppm max. for a ±5% input voltage change ±0.3 ppm max. for a ±10% loading condition change ±1 ppm max. 1 reflow and measured 24 hours afterwards +2.8 V +3.0 V +3.3 V (voltage code is (voltage code is (voltage code is “28”) “3”) “33”) Logic “1” 2.7 V min. Logic “0” 0.3 V max. Rise Time and Fall Time 3 nano. sec. typ. 20% ↔ 80% of waveform Duty Cycle (Symmetry) 50%±10% measured at 50% VDD 2 m. sec. typ. 3.5 mA typ. at +3.3V / 7 mA typ. at +5.0V Start-up Time Current Consumption E.F.C. Electronic Frequency Tuning. Frequency Deviation Range by Vcon on pad No. 1 Output Load SSB Phase Noise at +25°C Output Format Storage Temperature Offset typical √: Available : Call us U: Not available +5.0 V (voltage code is “5”) Not available . Do not make connection to pad 1. 15 pF 10 Hz 100 Hz -65 dBc/Hz -100 dBc/Hz AC block, DC coupled -50°C to +100°C 1 kHz -130 dBc/Hz 10 kHz -150 dBc/Hz 100 kHz -150 dBc/Hz (1) : Frequency stability over temperature will be from this measured initial frequency. MERCURY www.mercury-crystal.com Taiwan: TEL (886)-2-2406-2779, FAX (886)-2-2496-0769, e-mail: [email protected] U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail: [email protected] - Page 1 of 2 Mar. 3, 2006 rev. 0 Temperature Compensated Crystal Oscillators TCXO, M57T series, HCMOS Output, 32.768 KHz MERCURY Since 1973 Part Number Format and Example: Part number example: " M57T " 3 "= Please specify M57T3-32.768K-2.5/-30+75 — " 32.768 — 2.5 " ⁄ -30+75 n o n: Product Series p q r o: Voltage code; Use”28” for +2.8 V; use “3” for +3.0 V; use “33” for +3.3 V; use “5” for +5.0 V p: Frequency in KHz q: Frequency stability r: Operating Temperature range in °C HCMOS Square Wave TCXO Test Circuit: Oscilloscope 15 pF * Vcc SUPPLY Frequency counter VOLTAGE + A V - * Include all the proble and stray capacitances 0.01 uF Package Dimensions and Suggested Land Pattern: Unit: mm Pad No. 1 2 3 4 MERCURY www.mercury-crystal.com Connection Do not make connection to pad 1 Ground Output Supply voltage Taiwan: TEL (886)-2-2406-2779, FAX (886)-2-2496-0769, e-mail: [email protected] U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail: [email protected] - Page 2 of 2 Mar. 3, 2006 rev. 0