CERAMIC SURFACE-MOUNT • 21.4MHz and 45MHz FUNDAMENTAL
ASC F21U and ASC F 45U
7.2 x 5.2 x 1.5 mm
MONOLITHIC CRYSTAL FILTERS
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.
STOPBAND PASSBAND ABRACON RIPPLE LOSS TERMINATING IMPEDANCE POLE dB PART ANDARD SPECIFICATIONS dB kHz dB kHz dB (W // pF) ST NO.
STANDARD SPECIFICATIONS
2 2 2 2 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
ASCF21U8 ASCF21U15 ASCF21U20 ASCF21U30
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. PASSBAND POLE dB kHz STOPBAND dB kHz RIPPLE LOSS TERMINATING IMPEDANCE dB dB ( W // pF )
ASCF45U8 ASCF45U12 ASCF45U15 ASCF45U30
2 2 2 2
3 3 3 3
±3.75 ±6.00 ±7.50 ±15.0
20 15 15 15
±25.0 ±20.0 ±25.0 ±60.0
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.
Dimensions: Inches (mm)
We Manufacture to your Custom Specifications. Please Call for Details.
ORDERING OPTIONS
ASCFXXU XX Packaging -T for Tape and reel See suffix in P/N 21 or 45
PIN 1 2 3 4 5 6
FUNCTION IN GND GND OUT GND GND
ABRACON IS ISO 9001 / QS 9000 CERTIFIED
NOTE: Left blank if standard • All specifications and markings subject to change without notice
ABRACON
29 J ourney • A liso V iejo, C A 9 2656 • U SA (949) 4 48-7070 • F AX : ( 949) 448-8484 E-MAIL: abinfo@ abracon.com • INTERNET ADDRESS: ww w. abracon.com
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C O R P O R AT I O N
77
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