915.75 MHz SAW Filter
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•
•
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Ideal Front-End Filter for 915.75 MHz Receivers
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
Ultra Miniature Ceramic QCC8C Package
SF5009
Absolute Maximum Rating (Ta=25°C)
Parameter
Input Power Level
DC Voltage V
DC
Operating Temperature Range
Storage Temperature Range
Rating
10
12
-10 ~ +60
-40 ~ +85
Unit
dBm
V
°C
°C
Electronic Characteristics
Parameter
Frequency (25°C)
Insertion Loss
3dB Bandwidth
Rejection
at
fc
- 5.0 MHz
at
fc
+ 5.0 MHz ~ +200.0 MHz
Temperature Stability
Operating Temperature Range
Turnover Temperature
Turnover Frequency
Frequency Temperature Coefficient
Frequency Aging
Absolute Value during the First Year
Nominal Frequency
Sym
fc
IL
BW
3
-
-
Tc
To
fo
FTC
|f
A
|
-
Minimum
NS
-
-
35
32
-10
25
-
-
-
1.0
Typical
915.75
15.0
2.6
46
43
-
40
fc
-
-
-
Maximum
NS
16.5
-
-
-
+60
55
-
-0.032
10
-
Unit
MHz
dB
MHz
dB
dB
°C
°C
KHz
ppm/°C
ppm/yr
MΩ
DC Insulation Resistance Between any Two Pins
NS = Not Specified
Notes:
1.
The frequency f
C
is defined as the midpoint between the 3dB
frequencies.
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, f
C
. Note
that insertion loss, bandwidth, and passband shape are dependent
on the impedance matching component values and quality.
Unless noted otherwise, specifications apply over the entire
specified operating temperature range.
Frequency aging is the change in f
C
with time and is specified at
+65°C or less. Aging may exceed the specification for prolonged
temperatures above +65°C. Typically, aging is greatest the first
year after manufacture, decreasing in subsequent years.
5.
Turnover temperature, T
0
, is the temperature of maximum (or
turnover) frequency, f
0
. The nominal frequency at any case
temperature, T
C
, may be calculated from: f = f
0
[1 - FTC (T
0
- T
C
)
2
].
The specifications of this device are based on the test circuit
shown above and subject to change or obsolescence without
notice.
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.
For questions on technology, prices and delivery please contact
our sales offices or e-mail sales@vanlong.com.
2.
6.
7.
3.
8.
4.
9.
Phone: +86 10 6301 4184
©
2004 by Vanlong Technology Co., Ltd.
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com
SF5009
VANLONG [ VANLONG TECHNOLOGY CO., LTD. ]
