Temperature Compensated Crystal Oscillators M572T Series, CMOS Output, 32.768 KHz TCXO MERCURY Since 1973 Features: Suitable for non-battery operated real time clocks require 32.768 KHz reference frequency 5x7x2.3 mm ceramic SMD TCXOs with CMOS square wave output 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 Range Standard M572T 32.768 KHz Square wave. Wave form code is “T” ±2 ppm at +25°C and Vcon = +1.5 V D.C. ± 1 ppm ±1.5 ppm ±2.0 ppm ±2.5 ppm -10 to +60°C √ √ √ √ -20 to +70°C √ √ √ √ -30 to +75°C √ √ √ √ -40 to +85°C √ √ √ Frequency Stability vs Aging vs Voltage Change vs Load Change vs reflow 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% waveform 2 m. sec. typ. 3.5 mA typ. at + 3.3V / 7 mA typ. at +5.0V 15 pF Offset 10 Hz 100 Hz 1 kHz SSB Phase Noise at +25°C Typical -65 dBc/Hz -100 dBc/Hz -130 dBc/Hz Storage Temperature -50°C to +100°C (1) : Frequency stability over temperature will be from this measured initial frequency. √: Available : Call us : Not available +5.0 V (voltage code is “5”) Start-up Time Current Consumption Output Load 10 kHz -150 dBc/Hz 100 kHz -150 dBc/Hz 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] MERCURY Page 1 of 3 Date: June 21,2010 Rev. 2 Temperature Compensated Crystal Oscillators M572T Series, CMOS Output, 32.768 KHz TCXO MERCURY Since 1973 Part Number Format and Example: Part number example: M572T 3 — : Product Series use “5” for +5.0 V M572T3-32.768K-2.5/-30+75 32.768K — 2.5 ∕ = Please specify -30+75 : Voltage code; Use”28” for +2.8 V; use “3” for +3.0 V; use “33” for +3.3 V; : Frequency in KHz : Frequency stability : Operating Temperature range in °C CMOS Square Wave TCXO Test Circuit and Waveform: T2 Clock Out + + - V - 4 3 15 pF * 80% 50% 2 * Include all the 20% probe and stray capacitances 1 Pad 2 Pad 3 Pad 4 Leave Unconnected Ground Output Supply Voltage [0.046] 1.17 [0.004] 0.1 2.3 max. [0.090 max.] 2 Unit: mm [0.055] 1.4 3 2 R0 .7 Bottom view 4 1 5.08 [0.200] typical 2.2[0.086] 2.0[0.079] Pad 1 Top view Tf Duty Cycle = T1 *100% T2 Tr [0.024] 0.6 5.00±0.15 [0.197± 0.006] [0.275± 0.006] 7.00± 0.15 4 3 [0.027] 0.7 0.4 [0.015] May or may not present on the part. Factory's option. Package Dimensions and Suggested Land Pattern: 1 T1 Top view 1.8[0.071] 0.01uF A 5.08 [0.200] Rounded pad is pad No. 1. Count counter-clockwise when looking at top view. Count clockwise when looking at bottom view. 0.01uF cecoupling capacitor is recommended. MERCURY Page 2 of 3 Date: June 21,2010 Rev. 2 Temperature Compensated Crystal Oscillators M572T Series, CMOS Output, 32.768 KHz TCXO MERCURY Since 1973 Recommended Reflow Soldering Profile Recommended Reflow Soldering Profile Profile Feature Preheat/Soak - Temperature min. (Ts min.) - Temperature max. (Ts max.) - Time (ts) (Ts min. to Ts max.) Ramp-up rate (TL to Tp) Liquidous temperature (TL ) Time (tL) maintained above TL Peak package body temperature (Tp) Time (Tp) within 5⁰C of the classification temperature Tc Ramp-down rate (Tp to TL) Time 25⁰C to peak temperature Sn-Pb Eutectic Assembly Pb-free Assembly 100⁰C 150⁰C 60 to 120 seconds 3⁰C / sec. max. 150⁰C 200⁰C 60 to 180 seconds 3⁰C / sec. max. 183⁰C 60 to 150 seconds 217⁰C 60 to 150 seconds 235⁰C 10 to 30 seconds 260⁰C 20 to 40 seconds 6⁰C / second max. 6 minutes max. 6⁰C / second max. 8 minutes max. Environment Performance Specifications Green Requirement Moisture Sensitivity Level Humidity Hermeticity Solderability Vibration Shock Storage temp. range ESD Protection Solder Pad Surface Finish MERCURY RoHS compliant, Pb (lead) free MSL=1 per IPC/JEDEC J-STD-020D.1 85% RH, 85°C, 48 hours Leak rate 2x10-8 ATM-cm3/sec max. Crystal part only. MIL-STD-202F method 208E MIL-STD-202F method 204, 35G, 50 to 2000 Hz MIL-STD-202F method 213B, test condi. E, 1000GG ½ sine wave -55 to +125°C 2.5 KV min. Human body model. Gold (0.3~1.2 um) over nickel (1.27~8.89um) Page 3 of 3 Date: June 21,2010 Rev. 2