EURO QUARTZ EME32T TCXO CMOS 3.28 x 2.5 x 0.9mm SMD 32.768kHz Miniature 3.28 x 2.5mm SMD package Frequency: 32.768kHz Supply voltage 1.8, 2.5, 3.0, 3.3 or 5.0 Volts Frequency stability from ±2ppm over 0 to +50°C RoHS compliant EME32T - OUTLINES AND DIMENSIONS DESCRIPTION EME32T series TCXOs are packaged in a miniature 4 pad ceramic SMD package. With squarewave (CMOS) output, tolerances are available from ±2.0ppm over 0° to +50°C. SPECIFICATION Product Series Code: Output Waveform: Initial Calibration Tolerance: Frequency Stability: 0° to +50°C: -20° to +70°C: -40° to +85°C: Timing error over time: Frequency Stability vs. Ageing: vs. Voltage Change: vs. Load Change: vs. Reflow: vs. All range of Vdd: Supply Voltage Variation (∆Vdd): Output Logic / Output Load: Output Voltage Level 'HIGH': Output Voltage Level 'LOW': Rise and Fall Times: Duty Cycle: FREQUENCY STABILITY Start-up Time: Pad 1 OE Thresholds: CURRENT CONSUMPTION Supply Voltage Current (max.) 1.8V 0.79µA 2.5V 1.05µA 3.0V 1.25µA 3.3V 1.37µA 5.0V 2.05µA EME32T CMOS Squarewave ±1.5ppm (at t. 25°±2°C) ±2.0ppm ±2.5ppm ±5.0ppm ±0.432 s/day ±12.960 s/month ±2.628 m/year ( ±3.0 ppm max. first year ±0.2 ppm max. ±5% change ±0.2 ppm max. ±10% change ±1ppm max. for one reflow (Measured after 24 hours) ±1.0ppm/Volt max. 0.25V max. Condition ∆V/∆t = 1V /us CMOS / 15pF Vdd -0.4V min. Ioh = 0.1mA 0.4V max. Ioh = 0.1mA 100ns max. 50%±10% typical 1s max. at 25°C 3s max. Over -40° to +85°C Vih = 0.8*Vdd, Vil = 0.2*Vdd PART NUMBERING PROCEDURE Example: EME32T33-32.768k-2.5/-20+70 Series Description TCXO = EME32T Supply Voltage 18 = 1.8 VDC 25 = 2.5 VDC 3 = 3.0 VDC 33 = 3.3 VDC 5 = 5.0 VDC Frequency (kHz) Stability over OTR (±ppm) Operating Temperature Range (OTR) (°C) EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk