ECS-3951C/3953C SMD Clock Oscillator The ECS-3951C (5V) and ECS-3953C (3.3V) miniature SMD crystal controlled, low current clock oscillator in an all ceramic Request a Sample SMD package. Obsolete/End of Life Date 01/08/2021 OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECS-3951C (+5V) ECS-3953C (+3.3V) ECS-3951C/3953C Parameters Conditions Units MIN TYP MAX MIN TYP MAX Frequency Range 1.000 80.000 1.000 125.000 MHz Standard 0 +70 0 +70 C Operating Temperature Extended (N Option) -40 +85 -40 +85 C Storage Temperature -55 +125 -55 +125 C Supply Voltage +4.5 +5.0 +5.5 +3.0 +3.3 +3.6 VDC Standard 100 100 PPM Frequency Stability* Option B 50 50 PPM Option C 25 25 PPM 1.8 ~ 30.0 MHz 10 8 mA 3.3 or 5.0V version 30.1 ~ 35.0 MHz 15 8 mA 5 x 7 mm Footprint Input Current 35.1 ~ 50.0 MHz 30 12 mA Low Power Consumption RoHS Compliant (Note 7 50.1 ~ 66.0 MHz 30 15 mA Exemption) 66.1 ~ 80.0 MHz 50 30 % Output Symmetry 50% VDD Level 40/60 40/60 % Rise and Fall Times 10% VDD to 90% Level 10 15 ns 0 Level VOL 10%* VCC 10%* VCC VDC 1 Level VOH 90%* VCC 90%* VCC VDC Output Load HCMOS 15 15 pF 1.8 ~ 36.0 MHz 5 5 ms Startup Time 36.1 ~ 80.0 MHz 10 10 ms VOL=0.5V/0.33V 4 4 mA Output Current VOL=4.5V/2.97V -4 -4 mA Enable/Disable Time 100 150 ns * Note: Inclusive of 25C tolerance, operating temperature, input voltage change, load change, shock and vibration. Part Numbering Guide: Example ECS-3951C-500-B-TR ECS - Series - Frequency Abbreviations - Stability Tolerance - Temperature - Packaging 3951C +5V ECS 500 = 50 MHz TR = Tape & Reel Blank = 100 ppm Blank = 0 ~ 70C 3953C +3.3V 1K/Reel B = 50 ppm M = -20 ~ +70C C = 25 ppm N = -40 ~ +85C th 15351 West 109 Street Lenexa, KS 66219 Phone: 913.782.7787 Fax: 913.782.6991 www.ecsxtal.com ECS-3951C/3953C SMD Clock Oscillator Package Dimensions (mm) Figure 2) Land Pattern Figure 1) Top, Side, and Bottom views Pin Connections Tri-State Control Voltage 1 Tri-State** Pad 1 Pad 3 2 Ground Open Oscillation 3 Output VCC x 0.9 Min. Oscillation 4 VCC VCC x 0.1 Max. No Oscillation ** Note: Internal pullup resistor from pin 1 to 4 allows active output if pin 1 is left open ECS-3953C is also compatible with a supply voltage of +3.0V DC 0.3V th 15351 West 109 Street Lenexa, KS 66219 Phone: 913.782.7787 Fax: 913.782.6991 www.ecsxtal.com