EM57T Datasheet | EUROQUARTZ limited

EURO QUARTZ SUPERCEDED BY EM572T DECEMBER 2009 EM57T TCXO 20.0k Hz to 50.0k Hz CMOS 7 x 5 x 2.5mm SMD, k Hz Range Miniature 7 x 5 x 2.5mm SMD package Frequency range: 20.0 to 50.0k Hz; 32.768k Hz Supply voltage 3.3 or 5.0 Volts Frequency stability from ±1ppm over -30 to +75°C Ro HS pliant - OUTLINES AND DIMENSIONS DESCRIPTION EM57T series TCXOs are packaged in a miniature 4 pad ceramic SMD package. With squarewave (CMOS) output, tolerances are available from ±1.0ppm over -30° to +75°C. The part has a 0.01m F decoupling capacitor built in. SPECIFICATION Product Series Code TCXO: VCTCXO: Frequency Range: Output Waveform: Initial Calibration Tolerance Models with mech. trimmer: Models without trimmer: Operating Temperature Range: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow: Supply Voltage: Output Logic Levels: Rise and Fall Times: Duty Cycle: Start-up Time: Current Consumption: FREQUENCY STABILITY Output Load: Storage Temperature: EM57T VEM57T 32.768k Hz Standard frequency 20.0k Hz to 50.0k Hz Squarewave <1.0ppm (at t. 25°±2°C) <2.0ppm (at t. 25°±2°C) See table ±1.0 ppm max. first year ±0.3 ppm max. ±5% change ±0.3 ppm max. ±10% change ±1ppm max. for one reflow (Measured after 24 hours) +3.3 or +5.0Volts (Specify when ordering) Logic High: 90% Vdd min. Logic Low: 10% Vdd max. 10ns max. 50%±5% 2ms typical, 5ms max. See table below 15p F -55~+125°C VEM57T VOLTAGE CONTROL SPECIFICATION Control Voltage: Standard = +1.5±1.0Volts for all input voltages. (Contact technical sales if +2.5±2.0 Volts is required.) Frequency Deviation: ±6.0 ppm min. Slope Polarity: Positive (increase of control voltage increases output frequency.) Input Impedance: 10k min. Modulation Bandwidth: 3.0k Hz min. measured at -3d B Linearity: 10% max. FREQUENCY STABILITY Frequency Stability (ppm) 0 ~ +50 -10 ~ +60 Temperature Range (°C) -20 ~ +70 -30 ~ +75 -40 ~ +85 P ±0.5 ASK x x x x ±1.0 P P x x x ±1.5 P P P x x ±2.0 P P P P x ±2.5 P P P PP P PART NUMBERING...