CERAMIC SURFACE-MOUNT • 21.4MHz and 45MHz FUNDAMENTAL MONOLITHIC CRYSTAL FILTERS ASCF21U and ASCF45U 7.2 x 5.2 x 1.5 mm FEATURES: • Surface-mount ceramic package. • Excellent attenuation bandwidth. • Reflow capable. • Low height.(1.5mm max.) APPLICATIONS: • Mobile communication systems. • Cellular and cordless phones. • Pagers. • Radios. STANDARD SPECIFICATIONS STOPBAND PASSBAND ABRACON RIPPLE LOSS TERMINATING IMPEDANCE PART NO.NDPOLE dB S kHz kHz dBNS dB (W // pF) STA ARD PECdBIFIC ATIO 2 2 2 2 ASCF21U8 ASCF21U15 ASCF21U20 ASCF21U30 3 3 3 3 ±3.75 ±7.50 ±10.0 ±15.0 20 18 10 15 ±18.0 ±25.0 ±30.0 ±45.0 1.0 1.0 1.0 1.0 2.0 2.0 2.0 2.0 (850 // 5.0) (1500 // 1.0) (1800 // 1.0) (2000 // 1.5) STANDARD SPECIFICATIONS ABRACON PART NO. ASCF45U8 ASCF45U12 ASCF45U15 ASCF45U30 PASSBAND POLE dB kHz 2 2 2 2 3 3 3 3 ±3.75 ±6.00 ±7.50 ±15.0 STOPBAND dB kHz 20 15 15 15 ±25.0 ±20.0 ±25.0 ±60.0 RIPPLE LOSS TERMINATING IMPEDANCE dB dB ( W // pF ) 1.0 1.0 1.0 1.0 2.5 2.5 2.5 2.5 (650 // 3.5) (650 // 5.0) (650 // 3.5) (1200 // -3.0) Operating Temperature: -20°C to + 70°C. Environmental and mechanical specifications, see appendix C. Group 2. Applications notes, see appendix A. Tape and reel, see appendix H. Marking, see appendix G. Recommended handling, see appendix F. We Manufacture to your Custom Specifications. Please Call for Details. ORDERING OPTIONS ASCFXXU XX - Packaging See suffix in P/N -T for Tape and reel 21 or 45 ABRACON IS ISO 9001 / QS 9000 CERTIFIED Dimensions: Inches (mm) PIN 1 2 3 4 5 6 FUNCTION IN GND GND OUT GND GND NOTE: Left blank if standard • All specifications and markings subject to change without notice ABRACON 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 C O R P O R AT I O N ® 77