Document
MF1105-1
FOR IF FILTER OF GSM HAND HELD
MF1105-1 FEATURES ELECTRICAL PERFORMANCE
PRELIMINARY
Item Center Fraquency (f0) Bandwidth (f0-3 dB) Insertion Loss at f0 Pass Band Ripple Group Delay Ripple Frequency range 246.0 MHz ––– 246.0 MHz f0 ± 110 kHz f0 ± 110 kHz f0 –21.6 MHz f0 –10.8 MHz f0 – 1.2 MHz f0 – 0.7 MHz f0 – 0.6 MHz
IN
DESCRIPTION
This SAW filter for the IF filter circuit of GSM 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. ––– ±110 ––– ––– ––– 65.0 60.0 40.0 33.0 25.0 22.0 25.0 30.0 35.0 40.0 60.0 60.0 290 Ω // – 6.0 pF 7.0 × 5.0 × 1.8 mm
Typ. ––– ±150 3.0 1.0 0.4 70.0 66.0 60.0 38.0 30.0 28.0 30.0 36.0 42.0 50.0 67.0 65.0
Max. ––– ––– 4.0 1.5 1.0 ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– –––
Units ––– kHz dB dBp-p µsec p-p
APPLICATION
• GSM Handheld
PACKAGE OUTLINE DIMENSIONS
7
f0 – 0.5 MHz Stop band Attenuation (relative to 0 dB) f0 + 0.5 MHz f0 + 0.6 MHz f0 + 0.7 MHz f0 + 1.2 MHz
1.8 5
dB
OUT
f0 +10.8 MHz f0 +21.6 MHz Terminal Impedance
Typ. R0.20 REF.
5.00 Typ. Typ. 1.27
Typ. R0.20 REF.
Package Size Operating temperature range: –10 ~ +60°C
INDEX MARK
Typ. 0.10 REF Typ. 0.80 Typ. 0.90
Unit : mm
Measurement Circuit
6pF IN 39nH 6pF OUT 39nH
– 78 –
3.00 Typ.
– 79 –
.