ECS-327TXO 32.768 KHz The ECS-327TXO is a low power CMOS SMD TCXO. The SMD TCXO 3.28 x 2.5 x 1.3 mm ceramic package is ideal for LoRa WAN and accurate RTC applicaitons. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECS-327TXO SMD CMOS TCXO PARAMETERS CONDITIONS ECS-327TXO UNITS MIN TYP MAX Frequency 32.768 KHz 25C 3C Frequency Tolerance 1.5 ppm Frequency Stability over Temp -40 ~ +85C 5 ppm Stability vs. Aging First Year at +25C 3 ppm Stability vs. VDD Change 5% VDD Change 0.2 ppm Stability vs. Load Change 10% Load Change 0.2 ppm Stability vs. Reflow After 24 Hours 1.0 ppm Low Profile Output CMOS 15 pF 3.28 x 2.5 mm Footprint Output Voltage Level VOH: VDD-0.4V min. (IOH 0.1 mA) VOL:0.4V max. (IOL -0.1 mA) Extended Temp Range RoHS Compliant Start-Up time 1 3 sec Rise & Fall time 20% 80% 100 ns Duty Cycle Vdd 40/60 % Operating Temp* -40 +85 C DIMENSIONS (mm) Storage Temp -55 +105 C Power Supply Current (Typical) 2.5V 5% 3.0V 5% 3.3V 5% 5.0V 5% 1.05 A 1.25 A 1.37 A 2.05 A PAD CONNECTIONS 1 Output Enable 2 Gnd 3 Output 4 Supply Voltage Ebable Function Pin 1 Output Figure 1) Top, Side, and Bottom views Vih=0.8* VDD Enabled Figure 2) Suggested Land Vil=0.2*Low Disabled PART NUMBERING GUIDE: Example ECS-327TXO-33-TR ECS - SERIES Voltage PACKAGING ECS 327TXO 25 = +2.5V TR = Tape 30 = +3.0V 32.768 KHz & Reel 33 = +3.3V TCXO 1K/Reel 50 = +5.0V Rev.2020 th 15351 West 109 Street Lenexa, KS 66219 Phone: 913.782.7787 Fax: 913.782.6991 www.ecsxtal.com ECS-327TXO 32.768 KHz SMD TCXO Timing Error over time (5 ppm over -40 ~ +85C) 0.432 sec/day 12.960 sec/month 2.628 min/year SOLDER PROFILE Peak solder Temp +260C Max 10 sec Max. 2 Cycles Max. Figure 1) Suggested Reflow Profile MSL 1, Lead Finish Au POCKET TAPE DIMENSIONS (mm) th 15351 West 109 Street Lenexa, KS 66219 Phone: 913.782.7787 Fax: 913.782.6991 www.ecsxtal.com