ECS-3951M-BN/3953M-BN SERIES SMD CLOCK OSCILLATORS The ECS-3951M-BN(5V) and ECS3953M-BN(3.3V) Series are miniature, crystal controlled, low current clock oscillators in a ceramic SMD package with an extended temperature range of -40 to +85°C with a frequency stability of ± 50 ppm. FEATURES 3.3V or 5.0V Version Extended Temp Range Low Power Consumption Seam Welded Package Tape & Reel (1,000 pcs. STD) PART NUMBERING GUIDE SERIES ECS-3951M - FREQUENCY (50.000 MHz) 500 STABILITY B = ± 50 ppm B TEMP RANGE N = -40 to +85°C ECS-3951M-BN (5V) MIN TYP MAX ECS-3953M-BN(3.3V) * MIN TYP MAX - N Sample Part Number: ECS-3951M-500-BN PARAMETERS CONDITIONS Frequency Range Temperature Range 125.0 1.800 125.0 MHz Operating -40° +85 ° -40° +85 ° C Storage -55° +125° -55° +125° C +5.5 +3.0 +3.6 V DC Supply Voltage Frequency Stability Input Current Output Symmetry Rise and Fall Times +4.5 +3.3 Option (B) ± 50 ± 50 ppm 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 35 mA at 1/2 Vcc Level 40/60 60/40 40/60 60/40 % 1.8 ~ 70.0 MHz 15 5 ns 70.1 ~ 125.0 MHz 5 5 ns Vcc x 0.1V max. Logic "1" Level Vcc x 0.9V Min. Start-Up Time +5.0 1.8 ~ 36.0 MHz Logic "0" Level Load UNITS 1.8 HCMOS 30 15 pF 1.8 ~ 36.0 MHz 5 5 ms 36.0 ~ 70.0 MHz 10 10 ms 70.0 ~ 125.0 MHz 15 15 ms 100 100 ns Enable/Disable Time * ECS-3953M-BN is also compatible with a supply voltage of +3.0 V DC ± 0.3 V. ** Inclusive of 25°C tolerance, operating temperature range, input voltage change, aging, shock and vibration. *** An internal pullup resistor from pin 1 to 4 allows active output if pin 1 is left open. ECS-3951M/3953M Standby Control Voltage Pin #1=Open #3=Oscillation PACKAGE DIMENSIONS (mm) Pin #1=+2.2V Min. #3=Oscillation Pin #1=+0.8V Max. #3=High Impedance Pin Connections #1 Tri-State *** Figure 1) Top, Side, Bottom Views #2 Gnd #3 #4 Output Vcc Figure 2) Land Pattern ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 · 913-782-7787 · 800-237-1041 · FAX 913-782-6991 · WWW.ECSXTAL.COM