SF280 - Vanlong

280.00 MHz SAW Filter
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Ideal for Receiver in 280.00 MHz
Low-Loss, High Attenuation
Simple External Impedance Matching
Rugged, Hermetic, Low Profile F-11 Package
Complies with Directive 2002/95/EC (RoHS Compliant)
SF280
Absolute Maximum Rating (Ta=25°C)
Parameter
Rating
Unit
CW RF Power Dissipation
P
+10
dBm
DC Voltage VDC Between Any Two Pins
VDC
±30
V
Operating Temperature Range
TA
-10 ~ +60
°C
Storage Temperature Range
Tstg
-40 ~ +85
°C
Electronic Characteristics
Parameter
Nominal Frequency (at 25°C)
(Center frequency between 3dB point)
Sym
Minimum
Typical
Maximum
Unit
fC
NS
280.00
NS
MHz
Insertion Loss
279.065 … 280.094 MHz
IL
-
2.2
3.0
dB
Amplitude Ripple (p-p)
279.065 … 280.094 MHz
Δα
-
0.3
1.0
dB
55
65
-
dB
40
50
-
dB
50
60
-
dB
|fA|
-
-
10
ppm/yr
DC Insulation Resistance Between any Two Pins
-
1.0
-
-
MΩ
Input / Output Impendence (nominal)
-
-
50
-
Ω
Attenuation
180.00 … 240.00 MHz
240.00 … 265.00 MHz
αrel
320.00 … 380.00 MHz
Frequency Aging
Absolute Value during the First Year
NS = Not Specified
Notes:
1.
The frequency fC is defined as the midpoint between the 3dB
frequencies.
2.
Unless noted otherwise, all measurements are made with the filter
installed in the specified test fixture that is connected to a 50Ω test
system with VSWR ≤ 1.2:1. The test fixture L and C are adjusted
for minimum insertion loss at the filter center frequency, fC. Note
that insertion loss, bandwidth, and passband shape are dependent
on the impedance matching component values and quality.
3.
Unless noted otherwise, specifications apply over the entire
specified operating temperature range.
Phone: +86 (10) 5820-3910
Fax: +86 (10) 5820-3915
© September 2, 2008 by Vanlong Technology Co., Ltd.
4.
The specifications of this device are based on the test circuit
shown above and subject to change or obsolescence without
notice.
5.
All equipment designs utilizing this product must be approved by
the appropriate government agency prior to manufacture or sale.
6.
Our liability is only assumed for the Surface Acoustic Wave (SAW)
component(s) per se, not for applications, processes and circuits
implemented within components or assemblies.
7.
For questions on technology, prices and delivery please contact
our sales offices or email to [email protected].
Email: [email protected]
Web: http://www.vanlong.com
SF280
280.00 MHz SAW Filter
Package Dimensions (F-11)
Electrical Connections
Terminals
1
2
3
4
Connection
Input/Output
Case Ground
Case Ground
Output/Input
Package Dimensions
Dimensions
A
B
C
D
E
F
Marking
Nom. (mm)
11.0
4.5
3.2
0.45
5.0
2.54
Tol. (mm)
±0.3
±0.3
±0.3
±0.1
±0.5
±0.2
Test Circuit
SF280
From 50Ω source
To 50Ω load
Ink Marking
Color: Black or Blue
Typical Frequency Response
Phone: +86 (10) 5820-3910
Fax: +86 (10) 5820-3915
© September 2, 2008 by Vanlong Technology Co., Ltd.
Email: [email protected]
Web: http://www.vanlong.com
SF280