90.50 MHz SAW Filter
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Surface Acoustic Wave Resonator Filter
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
F-16 Metal Thru-Hole Package
SF90.5B
Absolute Maximum Rating (Ta=25°C)
Parameter
Input Power Level
DC Voltage V
DC Between Any Two Pins
Operating Temperature Range
Storage Temperature Range
P
in
V
DC
Rating
0
30
-10 ~ +60
-40 ~ +85
Unit
dBm
V
°C
°C
T
A
T
stg
Electrical Characteristics
Parameter
Center Frequency (25°C)
Insertion Loss at fc
3dB Bandwidth
Passband Ripple (fc ± 15 KHz)
Stopband Attenuation
fc
± 60 KHz
fc
± 120 KHz
fc
- 930 …fc - 890 KHz
fc
- 4020 …fc - 3980 KHz
Temperature Stability
Turnover Temperature
Frequency Temperature Coefficient
Group Delay
Absolute at
fc
Deviation
fc
± 10 KHz
To
FTC
Sym
fc
IL
BW
3
Minimum
NS
-
45
-
15
Typical
90.50
2.0
62
0.2
21
47
62
80
-
0.032
15
2.0
-
Maximum
NS
4.0
-
1.0
-
-
-
-
55
-
18
8.0
-
Unit
MHz
dB
KHz
dB
dB
dB
dB
dB
°C
ppm/°C
µSec
µSec
MΩ
∆α
α
42
55
70
25
-
10
-
1.0
τ
∆τ
-
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
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com
SF90.5B
©
December 2005 by Vanlong Technology Co., Ltd.
VANLONG [ VANLONG TECHNOLOGY CO., LTD. ]
