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| ECS-3951C/3953C SERIES SMD CLOCK OSCILLATOR The ECS-3951C (5V) and ECS-3953C (3.3V) Series are miniature, crystal controlled, low current clock oscillator in a ceramic SMD package. The low profile package is ideal for today's advanced portable PC and instrumentation designs. FEATURES * 3.3 or 5.0V version * Miniature profile * Low power consumption * Standby function * Tape & Reel (1,000 pcs) PART NUMBERING GUIDE ECS-3951C - FREQUENCY (50.0 MHz) 500 - STABILITY TOLERANCE (50 PPM) B Sample Part Number: ECS-3951C-500-B OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS FREQUENCY RANGE TEMPERATURE RANGE SUPPLY VOLTAGE FREQUENCY STABILITY** Standard Option (B) Option (C) 1.8 ~ 30.0 MHz 30.0 ~ 35.0 MHz 35.0 ~ 50.0 MHz 50.0 ~ 66.0 MHz 66.0 ~ 80.0 MHz @ 1/2 VCC Level VCC x 0.1V max. VCC x 0.9V min. HCMOS 1.8 ~ 36.0 MHz 36.0 ~ 80.0 MHz VOL=0.5V/0.33 VOH=4.5V/2.97V Operating Storage CONDITIONS MIN 1.800 0 -55 +4.5 -100 -50 -25 ECS-3951C (5V) TYP MAX 80.000 +70 +125 +5.5 +100 +50 +25 10 15 30 30 50 60/40 10 MIN 1.800 0 -55 +3.0 -100 -50 -25 ECS-3953C (3.3V)* TYP MAX 80.000 +70 +125 +3.6 +100 +50 +25 8 8 12 15 30 60/40 15 UNITS MHz C C V DC PPM PPM PPM mA mA mA mA mA % ns +5.0 40 +3.3 40 INPUT CURRENT OUTPUT SYMMETRY RISE AND FALL TIMES LOGIC "0" LEVEL LOGIC "1" LEVEL LOAD START-UP TIME OUTPUT CURRENT (IOL) (IOH) 40/60 50 4 40/60 50 4 ENABLE/DISABLE TIME * ECS-3953C 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 (Pin 2) to minimize power line noise. 15 5 10 4 -4 100 15 5 10 4 -4 100 pF ms ms mA mA ns PACKAGE DIMENSIONS (mm) 0.10 PIN CONNECTIONS #1 TRI-STATE*** #2 GND #3 OUTPUT #4 VCC 2.00 4 5.08 1.60 0.15 3 1 2 1.40 1.40 5.00 0.2 0.01F 5.08 ECS-3951C/3953C Standby Control Voltage PIN #1 = OPEN *** #3 = OSCILLATION #3 = OSCILLATION PIN #1 = VCCx0.9 MIN PIN #1 = VCCx0.1 MAX #3 = HIGH IMPEDANCE 2.54 7.5 0.2 1 2 4 3 1.00 4.20 Figure 1) ECS-3951C/3953C Top, Side and Bottom views 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 SMD OSCILLATORS 42 SMD OSCILLATORS |
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