Pin No.
#1. Output
#2. Input 1
#3. Input 2
#4. Ground
FUJITSU MEDIA DEVICES
SAW BANDPASS FILTER
SBU 48DU
* 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. SBU 48DU2002-04-01
PIN CONNECTIONS
MEASUREMENT CIRCUIT
FEATURES
•IF filter for Satellite Receiver
•Dual Channel filter
•Channel 1;Center Frequency⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
3dB bandwidth⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
•Channel 2;Center Frequency⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
3dB bandwidth⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
480.00 MHz
18.6 MHz(typ)
480.00 MHz
28.2 MHz(typ)
ABSOLUTE MAXIMUM RATINGS(Ta=25°C)
ELECTRICAL CHARACTERISTICS(Ta=25°C)
INPUT 1 (18MHz)
Item Symbol Conditions Min. Typ. Max. Unit
IL 480.0
-
20.2
-
dB
fv-9 471.0 -5.0 -2.2
-
dB
fv 480.0
-
0
-
dB
fv+9 489.0 -5.0 -2.6
-
dB
Arip 475~485
-
0.6 1.0 dB
τ rip 471~489
-
912ns
-20~70°C
-
-86
-
ppm/°C
Insertion Loss
Relative level
Amplitude
Group delay rpple
Temperature
coefficient of
freequency
MHz
MHz
MHz(ref)
MHz
430~455
-
-47 -39 dBMHz
505~530
-
-39 -36 dBMHz
MHz
MHz
INPUT 1 (27MHz)
Item Symbol Conditions Min. Typ. Max. Unit
IL 480.0
-
21.2
-
dB
fv-13.5 466.5 -5.0 -2.2
-
dB
fv 480.0
-
0
-
dB
fv+13.5 493.5 -5.0 -2.6
-
dB
Arip 471~489
-
0.5 0.9 dB
τ rip 466.5~493.5
-
712ns
-20~70°C
-
-86
-
ppm/°C
Insertion Loss
Relative level
Amplitude
Group delay rpple
Temperature
coefficient of
freequency
MHz
MHz
MHz(ref)
MHz
430~452
-
-47 -39 dBMHz
507~530
-
-39 -36 dBMHz
MHz
MHz
Item Symbol Conditions Rating Unit
DC Voltage
-
(1) 0 V
Instantanneous DC Voltage
-
(2) 3 V
AC Voltage
-
50,60 Hz (1) 3 Vp-p
Operating temperature range Topr
-
-20 to 70 °C
Storage temperature range Tstg
-
-55 to 85 °C
Note (1) Between inputs or outputs.
(2) Between any two electrodes.
PACKAGE DIMENSION
Unit: mm
8.3+_0.1
4_ o
/ 0.45 +_ 0.05
2.5 _ 0.3
+ 0.5
2.54
+_0.2
2.54
+_0.2
2.54
+_0.2
2.54
+_0.2
0.3MAX
9.5MAX
3.8MAX0.3MAX
#1
#3
#4
#2
A: Network Analyzer
50Ω2
34
A
1
50Ω
INPUT 1
50Ω3
24
A
1
50Ω
A: Network Analyzer
INPUT 2
FUJITSU MEDIA DEVICES LTD.
FREQUENCY CHARACTERISTICS
FREQUENCY (MHz)
INPUT 1 (18MHz) INPUT 2 (27MHz)
440 460 480 500 520430 450 470 490 510 530 440 460 480 500 520430 450 470 490 510 530
FREQUENCY (MHz)
FREQUENCY (MHz)
440 460 480 500 520430 450 470 490 510 530 440 460 480 500 520430 450 470 490 510 530
FREQUENCY (MHz)
(10dB/div) (10dB/div)
(1dB/div) (1dB/div)
Group Delay Time
(10ns/div)
Group Delay Time
(10ns/div)
