ECS-300C SERIES DUAL OUTPUT CMOS CLOCK OSCILLATOR The ECS-300C utilizes a built in divider circuit to provide a second divided output. The CMOS based oscillator features low current consumption in a standard 8-pin DIP package. FEATURES • Low current consumption • Built in divider circuit • 8-pin DIP package STANDARD FREQUENCIES PART NUMBERING GUIDE SERIES ECS-300C – 12.000, 12.288, 12.800, 14.31818, 14.7456, 15.9744, 16.000, 16.384, 17.734476, 18.432, 19.6608, 20.000, 24.000, 24.576, 30.000 AND 32.000 MHz FREQUENCY (12.000 MHz) 120 Sample Part Number: ECS-300C-120 OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS PARAMETERS CONDITIONS Primary Output Divided Output* All Conditions FREQUENCY RANGE FREQUENCY STABILITY OPERATING TEMPERATURE STORAGE TEMPERATURE INPUT VOLTAGE (V CC) INPUT CURRENT MINIMUM 12.000 48.875 KHz -10˚ -55˚ +3.0V Primary Output Divided Output OUTPUT SYMMETRY TYPICAL MAXIMUM 32.000 16.000 MHz ±100* +70˚ +125˚ +5.5V 20 60/40 52/48 15 V CC x 0.1 +5.0V 40/60 48/52 RISE AND FALL TIMES OUTPUT VOLTAGE 12.000 30.000 12.000 30.000 OUTPUT LOAD OUTPUT VOLTAGE VOL VOH ~ 24.576 ~ 32.000 ~ 24.576 ~ 32.000 UNITS MHz PPM PPM ˚C ˚C V DC mA % % ns V DC V DC pF pF mS mS V CC x 0.9 MHz MHz MHz MHz 50 15 1.5 2.0 *See Possible Frequency Divisions Table for example of divided frequencies. POSSIBLE FREQUENCY DIVISIONS BY PART NUMBER ECS PART NUMBER fo CLOCK PIN 1 ECS-300C-120 ECS-300C-163 ECS-300C-320 1/2 1 6.000 MHz 8.192 MHz 16.000 MHz 12.000 MHz 16.384 MHz 32.000 MHz 1/2 2 3.000 MHz 4.096 MHz 8.000 MHz 1/2 3 1.500 MHz 2.048 MHz 4.000 MHz Input Divider Selection C B A X X X L L L L L H L H L L H H H L L H L H H H L H H H PIN CONNECTIONS #1 OUTPUT #2 DIVIDED OUTPUT #3 STANDBY #4 GND #5 A (Divider selection) #6 B (Divider selection) #7 C (Divider selection) #8 V CC DIMENSIONS (mm) 7.0 max. 12.8 max. 8 7 6 5 Figure 2) Pin Connections 1 2 3 4 Ø1.6 ST VDD GND 7.62±0.3 2.5 5.08 min. max. OSCILLATOR 1/2 7 93.75 KHz 128 KHz 250 KHz 1/2 8 46.875 KHz 64 KHz 125 KHz Output ST L H H H H H H H H PIN 1 (Primary Output) fo fo fo fo fo fo fo fo L clock clock clock clock clock clock clock clock PIN 2 (Divided Output) fo fo fo fo fo fo fo fo L 1/2 1 clock 1/2 2 clock 1/2 3 clock 1/2 4 clock 1/2 5 clock 1/2 6 clock 1/2 7 clock 1/2 8 clock DIVIDER SELECTOR 0.6 max. Figure 4) Divided Output Selection Table F f 2.54±0.25 0.5±0.15 1/2 6 187.5 KHz 256 KHz 500 KHz OUTPUT BUFFER 0.8 fo/2 n (Divided Output) PIN 2 1/2 4 1/2 5 750 KHz 375 KHz 1.024 MHz 512 KHz 2.000 MHz 1.000 MHz D 8 (F1/2-F1/2 ) 0~15° Figure 1) ECS-300C Top and Side views A B C SELECT Figure 3) ECS-300C Block Diagram ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM OSCILLATORS 37 OSCILLATORS