5.0VDC or 3.3VDC • 8 PINDIP • HCMOS/ TTL LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS ASSH • Integrated Spread Spectrum technology • Standard TTL or HCMOS output. • Meets jitter requirements for all major CISC, RISC and DSP processors • Frequency Range of 15 to 120 MHz @ 5.0 VDC. • Frequency Range of 15 to 90 MHz @ 3.3 VDC. Amplitude (dB) FEATURES: Frequency (MHz) APPLICATIONS: ADDITIONAL BENEFITS: • • • • • • • • • • • • • • • • Medical Printers Scanners Modems Telecommunications Aerospace Copier Automotive Reduce emissions up to 20 dB. Systemic approach to EMI. Highly cost effective compared to other methods. Eliminate need for individual node suppression. Eliminate need for expensive shielding. Reduce component count. Reduce PCB layer count. Drop- in replacement for 8 pin DIP packages. MECHANICAL DIMENSIONS: PIN CONFIGURATION: Pin Number 1 4 5 8 Function NC GND OUTPUT VDC Table1 Dimensions: Inches (mm) ABRACON IS ISO 9001 / QS 9000 CERTIFIED 18 Rev. 2.4 NOTE: Left blank if standard • All specifications and markings subject to change without notice 29 Journey • Aliso Viejo, CA 92656 • USA (949) 448-7070 • F AX : (949) 448-8484 E-MAIL: abinfo@ abracon.com • INTERNET ADDRESS: www.abracon.com ABRACON ® C O R P O R AT I O N 05/2003 5.0VDC or 3.3VDC • 8 PIN DIP • HCMOS/ TTL LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATORS ASSH Table 2 STANDARD ELECTRICAL SPECIFICATIONS PARAMETER ASSH Operating Temperature (Topr) 0°C to +70°C Storage Temperature (Tsto) - 65°C to +150°C ± 100 ppm max. (See Options) Frequency Stability vs. Temp (dF/Fo) Operating Supply Voltage (VDC) 3.3 VDC 5.0 VDC Frequency Range (Fo) 15 – 90 MHz 15 – 120 MHz Operating Input Current (IDD) 40 mA max 75 mA Duty Cycle 45/55 45/55 Output Voltage (VOH/VOL) 2.4 VDC min. 4.0 VDC min. Rise Time 5.0 typ. 3.5 typ. Fall Time 3.2 typ. Start-up Time Aging Jitter Output Load Modulation Frequency (Fm) 2.3 typ. Conditions +/-5 % F = 90 MHz % max Load =15 pF, 10 – 90% Load =15 pF, 10 – 90% 10 ms max. 3 ms typ. +/- 5ppm max. /year 500 ps. max. 10-LSTTL or 15 pF 20 – 40 kHz 0°C to +70°C 15 – 120 MHz Download Spread Spectrum Clocking application note on Abracon website at www.abracon.com/emi/ssc. Table 3 FACTORY BANDWIDTH SELECTION (±10%) FACTOR BANDWIDTH SELECTION OPTIONS: BANDWIDTH % Center Spread C1 ± 0.625 C2 ± 1.25 C3 ± 2.50 C4 ± 5.00 ORDERING OPTION ASSH - FREQUENCY - FREQ. STABILITY - BANDWIDTH Fo in MHz as; XXX.XXXX -R for ±25 ppm max -K for ±30 ppm max -H for ±35 ppm max -C for ±50 ppm max -Cx = Center Spread (See table 3 for options) Example: ASSH-048.0000-C-C4 Would be the part number for a 48.0000 MHz, ±5.0% center spread with a +/-50 ppm center frequency accuracy . ABRACON IS ISO 9001 / QS 9000 CERTIFIED Rev. 2.4 NOTE: Left blank if standard • All specifications and markings subject to change without notice 29 Journey • Aliso Viejo, CA 92656 • USA (949) 448-7070 • F AX : (949) 448-8484 E-MAIL: abinfo@ abracon.com • INTERNET ADDRESS: www.abracon.com ABRACON ® C O R P O R AT I O N 05/2003 19