311.00 MHz SAW Filter
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Ideal for Receivers in 311.00 MHz
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
Rugged, Hermetic, Low Profile F-11 Package
SF311B
Absolute Maximum Rating (Ta=25°C)
Parameter
CW RF Power Dissipation
Rating
0
Unit
dBm
V
P
DC Voltage VDC Between Any Two Pins
Operating Temperature Range
Storage Temperature Range
VDC
TA
Tstg
±10
-10 ~ +60
-40 ~ +85
°C
°C
Electronic Characteristics
Parameter
Sym
Minimum
Typical
311.00
Maximum
NS
Unit
Nominal Frequency (at 25°C)
(Center frequency between 3dB point)
Insertion Loss
fC
NS
MHz
-
-
-
3.5
-
dB
MHz
dB
IL
BW3
∆α
αrel
|fA|
-
3dB Bandwidth
12.0
Passband Ripple
-
-
±1.0
50
-
-
-
dB
Rejection
fC ± 30MHz
Absolute Value during the First Year
Frequency Aging
-
-
10
-
ppm/yr
MΩ
DC Insulation Resistance Between any Two Pins
Input / Output Impendance (nominal)
1.0
-
-
150
-
Ω
NS = Not Specified
Notes:
1.
2.
The frequency fC is defined as the midpoint between the 3dB
frequencies.
4.
The specifications of this device are based on the test circuit
shown above and subject to change or obsolescence without
notice.
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.
5.
6.
All equipment designs utilizing this product must be approved by
the appropriate government agency prior to manufacture or sale.
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.
3.
Unless noted otherwise, specifications apply over the entire
specified operating temperature range.
7.
For questions on technology, prices and delivery please contact
our sales offices or email to sales@vanlong.com.
Phone: +86 10 6301 4184
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com
SF311B
© April 2004 by Vanlong Technology Co., Ltd.