＊ The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by
Fujitsu Media Devices for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of Fujitsu Media Devices or others.
＊ The information contained herein may be changed without prior notice. It is therefore advisable to contact Fujitsu Media Devices before proceeding
with the design of equipment incorporating this product.
No. SRF1855NCC31 2002-04-01
Ta = -30 ～ +85℃
Items Conditions [MHz] Min. Typ.* Max. Unit
Maximum insertion
loss in pass band
1840～1870 － 1.8 2.5 dB
Pass band flatness 1840～1870 － 0.8 1.5 dB
DC ～1600 30 39 － dB
1750～1780 30 36 － dB
2900～3200 25 37 － dB
Out of band rejection
(Absolute value)
4400～4700 15 27 － dB
Pass band VSWR 1840～1870 － 1.4 2.0 －
Nominal impedance － 50 － Ω
*Typical values are specified at 25℃
ELECTRICAL CHARACTERISTICS
FUJITSU MEDIA DEVICES
SRF1855NCC31
○SYSTEM……………………………………… K-PCS Rx FILTER
○CARRIER FREQUENCY……………………… 1840～1870 MHz
FREQUENCY CHARACTERISTICS
PACKAGE DIMENSION
MEASUREMENT CIRCUIT
TERMINATIONS
#1. GROUND
#2. INPUT/OUTPUT
#3. GROUND
#4. GROUND
#5. OUTPUT/INPUT
#6. GROUND
2.5
2.0
0.30
R 0.12
R 0.15
Unit：mm
1.25
0.25
0.50
1.00
0.40
1.20
0.80 0.10
#
3
#1
#
2
#
4
#
6
#
5
50Ω
50Ω
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
1605 1655 1705 1755 1805 1855 1905 1955 2005 2055 2105
Frequency ( MHz)
Transfer Function
(
dB
)
FUJITSU MEDIA DEVICES LTD.
(Ta = 25℃ unless otherwise noted)
Items Electrodes Ratings Notes
DC voltage Between any
two electrodes 0 V
Input power Between input
and ground 13 dBm
Operating temp. -30 ～ +85 ℃
Storage temp. -40 ～ +85 ℃
FUJITSU MEDIA DEVICES
SRF1855NCC31
FREQUENCY CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS (Ta=25℃
℃℃
℃)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
1605 1655 1705 1755 1805 1855 1905 1955 2005 2055 2105
Frequenc y (MHz)
Transfer Function
(
dB
)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
0 600 1200 1800 2400 3000 3600 4200 4800 5400 6000
Frequenc y (MHz)
Transfer Function
(
dB
)
-9.0
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
-2.0
-1.0
0.0
1.0
1805 1815 1825 1835 1845 1855 1865 1875 1885 1895 1905
Frequency (MHz)
Transfer Function
(
dB
)
1
2
3
4
5
6
7
8
9
10
11
1805 1815 1825 1835 1845 1855 1865 1875 1885 1895 1905
Frequency (MHz)
VSWR
