250 MHz SAW Filter
80 MHz Bandwidth
Part Number: SF0250BA02425S
DESCRIPTION
•
•
•
250 MHz SAW bandpass filter with 80 MHz bandwidth.
5 x 5 mm LCC package.
RoHS compliant.
TYPICAL PERFORMANCE
50. ns/"
Horizontal:
Vertical from Top:
Frequency :
Relative Magnitude :
Relative magnitude :
Phase Linearity :
Group Delay Deviation :
40
10
1
5
50
MHz/div
dB/div
dB/div
deg/div
ns/div
S11 (50 to 450 MHz)
S22 (50 to 450 MHz)
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA
•
Phone 1-508-251-6400
•
Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0250BA02425S Rev A 19-Mar-2010
ECN 36650 Page 1 of 3
250 MHz SAW Filter
80 MHz Bandwidth
Part Number: SF0250BA02425S
SPECIFICATION
Parameter
2
Center Frequency (Fc)
1
Minimum Insertion Loss
1 dB Bandwidth
Lower 33 dB Band Edge
2
Upper 33 dB Band Edge
2
Rejection (0.3 to 30 MHz)
Rejection (30 MHz to 150 MHz)
Rejection (150 to 186 MHz)
Rejection (186 to 192.5 MHz)
Rejection (307.5 to 316 MHz)
Rejection (316 to 320 MHz)
Rejection (320 to 500 MHz)
Passband Ripple (210 to 290 MHz)
3
Passband Ripple (209 to 291 MHz)
3
Phase Linearity (210 to 290 MHz)
3
Group Delay Deviation (210 to 290 MHz)
3
Source and Load Impedance
Ambient Temperature (Tref)
Notes:
1.
2.
3.
4.
Min
-
-
80.0
192.5
-
30
40
38
33
33
38
40
-
-
-
-
-
-
Typ
250
19.4
84.0
195.8
304.6
40
48
40
35
35
41
45
0.7
0.8
4.5
25
50
25
Max
-
20.5
-
-
307.5
-
-
-
-
-
-
-
1.0
1.5
8
50
-
Units
MHz
dB
MHz
MHz
MHz
dB
dB
dB
dB
dB
dB
dB
dB p-p
dB p-p
deg p-p
ns p-p
Ω
°
C
Average of the lower and upper 3 dB frequencies.
All dB levels are relative to the insertion loss.
These specifications apply over the full operating temperature range.
Typical change of filter frequency response with temperature is
∆f
= (T-T
ref
)*Tc*Fc, in ppm.
MAXIMUM RATINGS
Parameter
Storage Temperature Range
Operating Temperature Range (T)
Temperature Coefficient of Frequency (Tc)
4
Input Power Level
Min
-40
-20
-
-
Typ
25
25
-74
10
Max
85
85
-
13
Units
˚C
˚C
ppm/˚C
dBm
MATCHING CIRCUIT
Typical component values:
Ls1
=
47
nH
Ls2
=
68
nH
Notes:
1. Recommend use of 2% tolerance matching components. Inductor Q=45.
2. Component values are for reference only and may change depending on board layout.
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA
•
Phone 1-508-251-6400
•
Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0250BA02425S Rev A 19-Mar-2010
ECN 36650 Page 2 of 3
250 MHz SAW Filter
80 MHz Bandwidth
Part Number: SF0250BA02425S
PACKAGE OUTLINE
SUGGESTED FOOTPRINT
Units:
mm
Tolerances are
±0.15
mm except
where indicated.
Pad Configuration:
Input:
1
Input return:
2
Output:
5
Output return:
6
Ground:
3,4,7,8
Package Material:
Body:
Al
2
O
3
ceramic
Lid:
Kovar, Ni
plated
Terminations:
Au
plating 1 µm min,
over a 1.3-8.9 µm
Ni
plating
ISO 9001
Registered
All specifications are believed to be accurate and reliable. However, Spectrum Microwave reserves the right to make changes without notice.
© 2010 All rights reserved.
Spectrum Microwave
400 Nickerson Road, Marlborough, MA 01752, USA
•
Phone 1-508-251-6400
•
Fax 1-508-251-6401
www.SpectrumMicrowave.com
DSSF0250BA02425S Rev A 19-Mar-2010
ECN 36650 Page 3 of 3
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