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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. SRF881NQC31C 2002-04-01
Ta = -30 ～ +85℃
Items Conditions [MHz] Min. Typ.* Max. Unit
Maximum insertion
loss in pass band
869～ 894 － 1.7
2.5
dB
Pass band flatness 869～ 894 － 0.6 1.3 dB
824～ 849 40
54 － dB
954～ 980 40
51 － dB
1700～1800 30
48 － dB
Out of band rejection
(Absolute value)
2600～2700 30
37 － dB
Pass band VSWR 869～ 894 － 1.6 2.0 －
Nominal impedance － 50
－ Ω
*Typical values are specified at 25℃
ELECTRICAL CHARACTERISTICS PACKAGE DIMENSION
MEASUREMENT CIRCUIT
FUJITSU MEDIA DEVICES
SRF881NQC31C
○SYSTEM……………………… CDMA/TDMA/AMPS Rx FILTER
○CARRIER FREQUENCY………………………… 869～894 MHz
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
FREQUENCY CHARACTERISTICS
50Ω
50Ω
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
781.5 801.5 821.5 841.5 861.5 881.5 901.5 921.5 941.5 961. 5 981.5
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 ℃
ABSOLUTE MAXIMUM RATINGS (Ta=25℃
℃℃
℃)
FREQUENCY CHARACTERISTICS
FUJITSU MEDIA DEVICES
SRF881NQC31C
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
781.5 801.5 821.5 841.5 861.5 881. 5 901.5 921.5 941.5 961.5 981.5
Frequency (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
Frequency (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
856.5 861.5 866.5 871.5 876.5 881.5 886.5 891. 5 896.5 901.5 906.5
Frequency (MHz)
Transfer Function
(
dB
)
1
2
3
4
5
6
7
8
9
10
11
856.5 861.5 866.5 871.5 876.5 881.5 886.5 891.5 896.5 901.5 906.5
Frequency (MHz)
VSWR
