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| MF1091-1 FOR IF FILTER OF DCS 1800 HAND HELD MF1091-1 FEATURES ELECTRICAL PERFORMANCE PRELIMINARY Item Center Fraquency (f0) Bandwidth (f0-3 dB) Insertion Loss at f0 Pass Band Ripple Frequency range 246.0 MHz --- 246.0 MHz 245.91 ~ 246.09 MHz (f0 90 kHz) 245.91 ~ 246.09 MHz (f0 90 kHz) f0 -25.0 ~ f0 -3.0 MHz f0 -1.6 MHz 4.8 DESCRIPTION This SAW filter for the IF filter circuit of DCS 1800 hand held 1. SMD package insures small size, lightweight. 2. Adjustment free. 3. Low insertion loss and high stop band attenuation. 4. Wide and sharp passband characteristics. 5. High stability and reliability. 6. Designed for reflow solderings. Min. --- 90 --- --- --- Typ. --- 150 --- 0.8 0.8 Max. --- --- --- 2.0 1.5 Units --- kHz dB dBp-p sec p-p APPLICATION * DCS 1800 Handheld PACKAGE OUTLINE DIMENSIONS 9.1 Group Delay Ripple 47.0 48.0 22.0 22.0 20.0 6.0 6.0 28.0 33.0 37.0 28.0 33.0 48.0 52.0 53.0 25.0 25.0 25.0 8.0 10.0 33.0 38.0 42.0 33.0 38.0 53.0 --- --- --- --- --- --- --- --- --- --- --- --- --- dB f0 -0.8 MHz f0 -0.6 MHz f0 -0.4 MHz f0 -0.2 MHz Attenuation (relative to 0 dB) f0 +0.2 MHz f0 +0.4 MHz f0 +0.6 MHz f0 +0.8 MHz f0 +1.6 MHz f0 +3.0 ~ f0 +5.0 MHz f0 +5.0 ~ f0 +25.0 MHz Input and Output Impedances Package Size Operating temperature range: -10 ~ +75C ,, ,, ,,,, ,,,,, , ,, ,,,, ,, , ,, , , ,, ,, ,, ,, , ,,,, ,,, , , , ,,,, ,,,,, ,,,, ,,, ,, , ,, , ,,,, ,,,, ,,,, ,,, , ,,,, , ,,, , ,,,, , 7.5 10-0.8 67 9 10 8 54 3 2 1 2.54 2.54 2.0 2.54 , ,, ,,,, ,,,,, , ,,, , ,, , ,, , ,,,,,, ,, , ,,,, ,,, , , , ,,,, ,,,,, ,,, ,, , , ,,, ,,,, ,,, , 6 : IN 1 : OUT 2, 7 : NC Other : GND Unit : mm 290 9.1x4.8x2.0 mm Measurement Circuit NC 6 pF 1 6 pF (50 ) IN 39 nH 6 NC 39 nH OUT (50 ) - 72 - - 73 - |
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