374.00 MHz SAW Filter
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•
•
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Ideal for Wireless LAN Applications
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
SF374
Rugged, Hermetic, Low Profile TO-39 Package
Absolute Maximum Rating (Ta=25°C)
Parameter
CW RF Power Dissipation
Rating
+10
Unit
dBm
V
P
DC Voltage VDC Between Any Two Pins
Operating Temperature Range
Storage Temperature Range
VDC
TA
Tstg
0
-10 ~ +65
-40 ~ +85
°C
°C
Electronic Characteristics
Parameter
Sym
Minimum
Typical
374.00
9.0
Maximum
NS
Unit
MHz
dB
Nominal Frequency (at 25°C)
(Center frequency between 3dB point)
Insertion Loss
fC
NS
-
10.5
IL
BW3
∆α
∆τ
3dB Passband
17
-
22
0.5
40
40
-
1.0
100
-
MHz
dB
Amplitude Ripple (p-p)
Group Delay Ripple (p-p)
Triple Transit Suppression
fC ± 7.0 MHz
fC ± 7.0 MHz
-
ns
-
30
dB
Relative Attenuation (relative to IL)
357.50 … 352.00 MHz
352.00 … 341.00 MHz
341.00 … 224.00 MHz
390.50 … 392.00 MHz
392.00 … 396.00 MHz
396.00 … 422.00 MHz
422.00 … 454.00 MHz
30
40
48
20
30
38
40
-
42
45
52
38
42
44
45
-87
-
-
-
dB
dB
-
dB
αrel
-
dB
-
dB
-
dB
-
dB
Temperature coefficient of frequency
Frequency Aging Absolute Value during the First Year
DC Insulation Resistance Between any Two Pins
FTC
|fA|
-
-
ppm/K
ppm/yr
-
10
-
1.0
-
MΩ
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
SF374
© April 2004 by Vanlong Technology Co., Ltd.