Surface Acoustic Wave Filters PAFC Series FEATURES * Small and low profile * Ceramic package type * Flat pass band characteristics * Low insertion loss * Circuit simplification APPLICATIONS * PHS HOW TO ORDER PAFC 248 B DIMENSIONS Type millimeters (inches) Center Frequency 0.8 (0.031) 3 3 3 3.8 (0.150) 3 Series 0.7 (0.028) 1.27 (0.050) 2 1 1.27 (0.050) 3 3 2 1 TEST CIRCUIT 3.5pF 4.5pF Input Output 3 3 50 1.0pF 1.3 (0.051) 50 1.0pF 68nH 68nH fnfaMHz* Ripple (fn110kHz) Group Delay Time (fn110kHz) Operating Temperature 3.8 (0.150) INPUT OUTPUT GROUND SPECIFICATIONS Normal Center Frequency (Fn) Part Number Insertion Loss Pass Band Width (at 3dB) Stop Band Attenuation fn600kHz fn1.2kHz PAFC248B 248.45MHz 4.0dB max. 130kHz min. 30dB min. 40dB min. 60dB min. 1.5dB max.. 1.2s max. -10 to 60C PAFC243B 243.95MHz 4.0dB max. 130kHz min. 30dB min. 40dB min. 60dB min. 1.5dB max.. 1.2s max. -10 to 60C Recommended Land Pattern millimeters (inches) Taping Dimension millimeters (inches) A E G G K 0.37 (0.015) OUT 0.9 (0.035) D IN 0.37 (0.015) 1.3 (0.051) L C G 1.8 (0.071) J 0.9 (0.035) G 1.3 (0.051) H B F G M 0.9 (0.035) G: GROUND Code A B C D E F G H J K L M 4.00 2.00 12.0 5.50 1.75 1.55 8.00 1.55 4.30 4.30 0.30 2.05 Dim. (0.157) (0.079) (0.472) (0.217) (0.069) (0.061) (0.315) (0.061) (0.169) (0.169) (0.012) (0.081) 50 Surface Acoustic Wave Filters PAFC Series RECOMMENDED TEMPERATURE PROFILE IR REFLOW Temp(C) Peak Temp 235C5C 250 2 to 3sec 200 150C10C 150 200C 40 sec max 100 50 0 to 60sec 60 to 120sec 0 Time CHARACTERISTICS PAFC248A Spurious Characteristics 0 10 20 30 40 50 60 Attenuation(-dB) 0 10 Group delay time(1.0sec/Div) Attenuation(-dB) PAFC248A Pass Band Characteristics 20 30 40 50 60 70 70 80 80 90 247.45 248.45 249.45 90 228.45 Frequency(MHz) 238.45 248.45 258.45 268.45 Frequency(MHz) PAFC243B Spurious Characteristics 0 10 20 30 40 50 60 70 Attenuation(-dB) 0 10 Group delay time(1.0sec/Div) Attenuation(-dB) PAFC243B Pass Band Characteristics 20 30 40 50 60 70 80 80 90 242.95 243.95 Frequency(MHz) 244.95 90 223.95 233.95 243.95 253.95 263.95 Frequency(MHz) 51