ECS-3961/3963 SERIES SMD CLOCK OSCILLATOR The ECS-3961 (5V) and ECS-3963 (3V) is our smallest crystal controlled low-current clock oscillator. This subminiature, very low profile leadless ceramic package is ideal for todays SMD manufacturing environment. Package is seam welded with a metal lid. FEATURES • 3x5 mm footprint • SMD • 3 & 5V versions • Seam welded package • Tape and Reel (1,000 pcs) • PbFree/RoHS Compliant PART NUMBERING GUIDE “EXAMPLE” MANUFACTURER ECS SERIES 3961 – FREQUENCY (14.4 MHz) 144 – (STABILITY TOLERANCE (A=±100 PPM) A – Sample Part Number: ECS-3961-144-A OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS CONDITIONS MIN 2.500 -100 -50 -25 -10 -55 +4.5 FREQUENCY RANGE Option (A) Option (B) Option (C)** FREQUENCY STABILITY** OPERATING TEMPERATURE STORAGE TEMPERATURE INPUT VOLTAGE VCC 2.5 ~ 35.0 MHz 35.0 ~ 50.0 MHz 1.8 ~ 36.0 MHz @ 1/2 VCC Level INPUT CURRENT OUTPUT SYMMETRY RISE AND FALL TIMES LOGIC “0” LEVEL LOGIC “1” LEVEL LOAD START-UP ECS-3961 (5V) TYP MAX 35.000 +100 +50 +25 +70 +125 +5.5 15 60/40 10 +5 40/60 50 ±4 MIN 2.500 -100 -50 -25 -10 -55 +2.7 40 ECS-3963 (3.0V) TYP +3.0 50 ±4 MAX 66.666 +100 +50 +25 +70 +125 +3.3 10 15 20 60 10 UNITS MHz PPM PPM PPM ˚C ˚C V DC mA mA mA % ns VCC x 0.1V max. VCC x 0.9V max. 15 10 15 10 pF ms * Inclusive of 25˚C tolerance, operating temperature range, input voltage change, load change, aging shock and vibration. ** Reduced operating temperature with option C (±25 PPM) -10˚ ~ +60˚C *** An internal pullup resistor from pin 1 to 4 allows active output if pin 1 is left open. PACKAGE DIMENSIONS (mm) ECS-3961 (5V) Standby Control Voltage PIN #1 = OPEN*** #3 = OUTPUT #3 = OUTPUT PIN #1 = +3.5V MIN #3 = NO OSCILLATION PIN #1 = 1.5V MAX 1.2 4 3 TR 2 3.2 ± 0.1 1.0 1 1 TF 1 LEVEL 90% VCC 1/2 VCC 5.0 ± 0.12 2 4 10% VCC 3 0 LEVEL 2.54 0 VDC 1.0 ±0.1 t T PIN CONNECTIONS #1 TRI-STATE*** #2 GND #3 OUTPUT #4 VCC Figure 2) Output Waveform Figure 1) ECS-3961/3963 Series Top, Side and Bottom Views 2.5 Test Point A 1.5 VCC #3 OUTPUT #2 CL: Including fixture and probe capacitance. O.8 GND CL STANDBY SW 0.01µF #1 1.5 STANDBY V 2.3 #4 VCC DC Power Supply ECS-3963 (3V) Standby Control Voltage PIN #1 = OPEN*** #3 = OUTPUT #3 = OUTPUT PIN #1 = +2.1V MIN #3 = NO OSCILLATION PIN #1 = 0.9V MAX 1.6 1.6 Figure 3) Test Curcuit Figure 4) Land Pattern O.9 ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM SMD OSCILLATORS 46 SMD OSCILLATORS