MF1 0 1 8 S -1
FOR DIGITAL MOBILE TELEPHONE, Tx
MF1018S-1
DESCRIPTION
FEATURES
MF1018S-1 TYPICAL CHARACTERISTICS
Insertion Loss vs. Frequency
Input VSWR vs. Frequency
This SAW filter for the transmitting RF circuit
of digital mobile communication equipment
operating at 940 MHz ~ 960 MHz.
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.
CH1 S21 log MAG
1 dB / REF 0 dB
CH1 S11 SWR
500 m / REF 1
[dB] 0
–1
–2
–3
–4
–5
3.0
6. Designed for reflow solderings.
2.0
1.0
APPLICATION
MAXIMUM RATINGS
CENTER 950.000 000 MHz
SPAN 100.000 000 MHz
CENTER 950.000 000 MHz
SPAN 100.000 000 MHz
• Mobile Cellular Telephone
• Portable Cellular Telephone
• Wireless equipment
Rating
Value
100
Unit
mW
°C
Attenuation vs. Frequency
Output VSWR vs. Frequency
CH1 S21 log MAG
5 dB / REF 0 dB
CH1 S22 SWR
500 m / REF 1
Input Power
[dB] 0
Operating Temperature Range –20 to 75
Storage Temperature Range –30 to 85
–10
–20
–30
°C
3.0
2.0
1.0
ELECTRICAL PERFORMANCE
PACKAGE OUTLINE DIMENSIONS
3.6
MF1018S-1
Min Typ Max
Parameter
Units
MHz
1.25
GND
GND
1.8
START 600.000 000 MHz
STOP
1
100.000 000 MHz
CENTER 950.000 000 MHz
SPAN 100.000 000 MHz
PASSBAND FREQUENCY
940 – 960
Input Reflection Coefficient vs. Frequency
CH1 S11 1 U FS
Output Reflection Coefficient vs. Frequency
CH1 S22 1 U FS
PASSBAND CHARACTERISTICS
Insertion Loss
Ripple
2.8 3.5
0.5 1.5 dBp-p
2.0 2.5
dB
IN
OUT
VSWR
STOPBAND ATTENUATION
0 – 830 MHz
830 – 880 MHz
1010 – 1060 MHz
1060 – 1600 MHz
30
20
20
30
35
30
25
40
dB
dB
dB
dB
GND
GND
BOTTOM VIEW
SIDE VIEW
MARKER 1 : 950 MHz
MARKER 1 : 950 MHz
MARKER 2 : 940 MHz
MARKER 3 : 960 MHz
MARKER 2 : 940 MHz
MARKER 3 : 960 MHz
3.8
CENTER 950.000 000 MHz
SPAN 100.000 000 MHz
CENTER 950.000 000 MHz
SPAN 100.000 000 MHz
Attenuation vs. Frequency
OUT
IN
CH1 S21 log MAG
5 dB / REF 0 dB
[dB] 0
–10
Unit : mm
–20
TOP VIEW
–30
DIMENSIONS ARE IN MILLIMETERS
±0.2 UNLESS OTHERWISE SPECIFIED
–40
START .300 000 MHz
STOP
3 000.000 000 MHz
– 22 –
– 23 –