MF1105-1中文资料

MF1105-1

– 79–

MF1105-1

FOR IF FILTER OF GSM HAND HELD

– 78–

DESCRIPTION

This SAW filter for the IF filter circuit of GSM hand held

FEATURES

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.

APPLICATION

? GSM Handheld

PACKAGE OUTLINE DIMENSIONS

IN

0.90

0.80ELECTRICAL PERFORMANCE

65.070.0– – –f 0 –21.6 MHz 60.066.0– – –f 0 –10.8 MHz 40.060.0– – –f 0 – 1.2 MHz 33.038.0– – –f 0 –0.7 MHz 25.030.0– – –f 0

–0.6 MHz

22.028.0– – –f 0 –0.5 MHz

25.030.0– – –f 0 +0.5 MHz 30.036.0– – –f 0 +0.6 MHz 35.042.0– – –f 0 +0.7 MHz 40.050.0– – –– – –f 0 + 1.2 MHz

60.067.0f 0 +10.8 MHz – – –

60.0

65.0

f 0 +21.6 MHz

dB Stop band Attenuation

(relative to 0 dB)

Terminal Impedance

Package Size

7.0 × 5.0 × 1.8 mm

290 ? // – 6.0 pF Operating temperature range: –10 ~ +60°C

Item

Min.Center Fraquency (f 0)Frequency range 246.0 MHz – – –Typ.– – –Max.– – –Units – – –Bandwidth (f 0-3 dB)– – –±110±150– – –kHz Insertion Loss at f 0246.0 MHz – – – 3.0 4.0dB Pass Band Ripple f 0 ± 110 kHz – – – 1.0 1.5dBp-p Group Delay Ripple

f 0 ± 110 kHz – – –0.4 1.0μsec p-p

PRELIMINARY

OUT

IN

Measurement Circuit

Unit : mm

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