480.00 MHz SAW Filter
Ideal for DBS Receivers, IF Filter
Constant Group Delay
Improved ESD capability by integrated shunt resistors
Rugged, Hermetic, Low Profile TO-39 Package
SF480-8
Absolute Maximum Rating (Ta=25°C)
Parameter
AC Voltage Between Any Two Pins
DC Voltage Between Any Two Pins
Operating Temperature Range
Storage Temperature Range
V
PP
V
DC
Rating
5
0
-25 ~ +85
-40 ~ +85
Unit
V
V
°C
°C
T
A
T
stg
Electronic Characteristics
Parameter
Center Frequency (25°C)
Between 3dB point
Tolerance from 480.00 MHz
Insertion Attenuation
Pass Bandwidth
Relative Attenuation
475.50 MHz
483.50 MHz
Lower Sidelobe
Upper Sidelobe
409.50 … 464.50 MHz
491.00 … 498.500 MHz
498.50 … 549.50 MHz
Reflected Wave Signal Suppression
-
0.19µs … 2.0µs after main pulse
Amplitude Ripple (p-p)
Group Delay Ripple (p-p)
477.50 … 481.50 MHz
475.50 … 483.50 MHz
40.0
-
-
-
46.0
0.7
13.0
-86
-
1.2
18.0
-
dB
dB
ns
ppm/K
-
3.0
2.6
45.0
41.0
47.0
-
-
5.4
5.3
dB
dB
dB
dB
dB
Sym
f
C
Minimum
NS
-
-
-
Typical
480.00
-
21.5
8.0
Maximum
NS
1.0
23.5
-
Unit
MHz
MHz
dB
MHz
∆
f
C
α
α
≤
3dB
BW
3
α
rel
-
37.0
34.0
38.0
∆α
∆τ
FTC
Temperature Coefficient of Frequency
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.
4.
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.
5.
6.
3.
7.
Phone: +86 10 6301 4184
©
2003 by Vanlong Technology Co., Ltd.
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com
SF480-8
VANLONG [ VANLONG TECHNOLOGY CO., LTD. ]
