401.65 MHz SAW Filter
•
•
•
•
Ideal Front-End Filter for 401.65MHz Receivers
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
SF5501
Ultra Miniature Ceramic QCC8C Package
Absolute Maximum Rating (Ta=25°C)
Parameter
Rating
10
Unit
dBm
V
Input Power Level
DC Voltage
Pin
VDC
TA
12
Operating Temperature Range
Storage Temperature Range
-10 ~ +60
-40 ~ +85
°C
Tstg
°C
Electronic Characteristics
Parameter
Sym
Minimum
NS
Typical
401.65
Maximum
NS
Unit
Nominal Frequency (25°C)
fC
MHz
(Center frequency between 3dB points)
Insertion Loss
IL
-
-
3.0
550
50
25
60
-
5.0
dB
KHz
dB
3dB Bandwidth
BW3
-
Rejection
at fc - 21.4 MHz (Image)
at fc - 10.7 MHz (LO)
Ultimate
-
-
-
40
15
-
-
-
-
dB
dB
Temperature Stability
Operating Temperature Range
Turnover Temperature
TC
TO
-10
25
-
+60
55
-
°C
°C
-
Turnover Frequency
fO
fC
KHz
Frequency Temperature Coefficient
FTC
-
0.032
-
ppm/°C
ppm/yr
Frequency Aging
Absolute Value during the First Year
|fA|
-
-
-
10
-
DC Insulation Resistance Between any Two Pins
-
1.0
MΩ
NS = Not Specified
Notes:
1.
2.
The frequency fC is defined as the midpoint between the 3dB
frequencies.
5.
6.
Turnover temperature, T0, is the temperature of maximum (or
turnover) frequency, f0. The nominal frequency at any case
temperature, TC, may be calculated from: f = f0 [1 - FTC (T0 - TC)2].
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.
The specifications of this device are based on the test circuit
shown above and subject to change or obsolescence without
notice.
7.
8.
All equipment designs utilizing this product must be approved by
the appropriate government agency prior to manufacture or sale.
3.
4.
Unless noted otherwise, specifications apply over the entire
specified operating temperature range.
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.
Frequency aging is the change in fC 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.
9.
For questions on technology, prices and delivery please contact
our sales offices or e-mail sales@vanlong.com.
Phone: +86 10 6301 4184
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com
SF5501
© April 2004 by Vanlong Technology Co., Ltd.