ECS-3951M/3953M Series SMD Clock Oscillator The ECS-3951M (5V) and ECS 3953M (3.3V) Series are miniature, crystal controlled, low current clock oscillators in a ceramic SMD package. Package is seam welded with a metal lid. The low profile package is ideal for today's advanced portable PC and instrumentation designs. Request a Sample OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS ECS-3951M/3953M Parameters ECS-3951M (5V) Conditions MIN Frequency Range Temperature Range * * * * * * 3.3 or 5.0V version Low Power Consumption Standby function Seam welded package Tape & Reel (1,000 pcs) PbFree/RoHS Compliant Input Current Output Symmetry Units 1.000 125.0 MHz +70 -10 +70 C Storage -55 +125 -55 +125 C +4.5 +5.0 +5.5 +3.0 +3.3 +3.6 V DC Standard -100 40 +100 -100 40 +100 PPM Option (B) -50 +50 -50 +50 PPM Option (C) -25 +25 -25 +25 PPM 1.0 ~ 36.0 MHz 20 15 mA 36.1 ~ 70.0 MHz 55 25 mA 70.1 ~ 100.0 MHz 60 30 mA 100.1 ~ 125.0 MHz 65 30 mA 60/40 % 1.0 ~ 70.0 MHz 15 5 nS 70.1 ~ 125.0 MHz 5 5 nS Logic "1" Level VCC x 0.9V min. Load (IOL) (IOH) MAX 125.0 VCC x 0.1V max. Output Current TYP -10 Logic "0" Level Start-Up Time MIN 1.000 @ 1/2 VCC Level Rise and Fall Times MAX Operating Supply Voltage Frequency Stability** TYP ECS-3953M (3.3V)* 40/60 504 60/40 40/60 504 HCMOS 30 15 pF 1.0 ~ 36.0 MHz 5 5 ms 36.1 ~ 70.0 MHz 10 10 ms 70.1 ~ 125.0 MHz 15 15 ms VOL=0.5V/0.33 4 4 mA -4 -4 mA 100 100 ns VOL=4.5V/2.97V Enable/Disable Time *ECS-3953M is also compatible with a supply voltage of +3.0V DC 0.3V **Inclusive of 25C tolerance, operating temperature range, input voltage change, load change, aging shock and vibration. ***An internal pullup resistor from pin 1 to 4 allows active output if pin 1 is left open. Note: A 0.01 F bypass capacitor should be placed between VCC (Pin 4) and GND (Pin2) to minimize power line noise. Part Numbering Guide: Example ECS-3951M-500-B-TR ECS ECS - Series 3951M +5V 3953M +3.3V - Frequency Abbreviations 500 = 50 MHz - Stability Tolerance A = 100 ppm B = 50 ppm C = 25 ppm D = 20 ppm - Temperature Blank = -10 ~ 70C M = -20 ~ +70C N = -40 ~ +85C U = -55 ~ +125C - Packaging TR = Tape & Reel 1K/Reel 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com ECS-3951M/3953M Series SMD Clock Oscillator Package Dimensions (mm) Figure 2) Land Pattern Figure 1) Top, Side, and Bottom views Pin Connections ECS-3951M/3953M Standby Control Voltage Tri-State*** Pin #1 = Open*** #3 = Oscillation Ground Pin #1 = 2.2V Min. #3 = Oscillation #3 Output Pin #1 = 0.8V Max #3 = High Impedance #4 VCC #1 #2 15351 West 109th Street | Lenexa, KS 66219 | Phone: 913.782.7787 | Fax: 913.782.6991 | www.ecsxtal.com