314.50 MHz One-Port SAW Resonator
•
•
•
•
Ideal for 314.50 MHz Transmitters
Very Low Insertion Loss
SR314B
Quartz Stability
Rugged, Hermetic, Low Profile F-11 Package
Absolute Maximum Rating (Ta=25°C)
Parameter
CW RF Power Dissipation
Rating
0
Unit
dBm
V
P
DC Voltage
VDC
TA
Tstg
±30
Operating Temperature Range
Storage Temperature Range
-10 ~ +60
-40 ~ +85
°C
°C
Electronic Characteristics
Parameter
Sym
fC
Minimum
Typical
314.50
-
Maximum
Unit
MHz
KHz
NS
-
NS
± 75
2.2
-
Frequency (25°C)
Nominal Frequency
Tolerance from 314.50 MHz
∆fC
IL
Insertion Loss
Quality Factor
-
-
-
1.5
dB
Unloaded Q-Value
QU
QL
12,850
2,050
-
-
-
50Ω Loaded Q-Value
Turnover Temperature
Turnover Frequency
Temperature Stability
TO
fO
25
-
-
fc
55
-
°C
KHz
ppm/°C2
ppm/yr
MΩ
Frequency Temperature Coefficient
Absolute Value during the First Year
FTC
-
-0.032
-
Frequency Aging
|fA|
-
-
-
-
10
-
DC Insulation Resistance Between any Two Pins
1.0
RF Equivalent RLC Model
Motional Resistance
RM
LM
-
-
19.0
123.5152
2.0755
2.5
29.0
Ω
µH
fF
Motional Inductance
-
-
Motional Capacitance
Pin 1 to Pin 2 Static Capacitance
CM
CO
-
2.2
2.8
pF
NS = Not Specified
Notes:
1.
The center frequency, fC, is measured at the minimum IL point with
the resonator in the 50Ω test system.
6.
7.
8.
Derived mathematically from one or more of the following directly
measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and C0.
2.
3.
Unless noted otherwise, case temperature TC = +25°C ± 2°C.
The specifications of this device are based on the test circuit shown
above and subject to change or obsolescence without notice.
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.
Typically, equipment utilizing this device requires emissions testing
and government approval, which is the responsibility of the
equipment manufacturer.
4.
5.
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].
9.
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.
This equivalent RLC model approximates resonator performance
near the resonant frequency and is provided for reference only. The
capacitance C0 is the measured static (nonmotional) capacitance
between Pin1 and Pin2. The measurement includes case parasitic
capacitance.
10. For questions on technology, prices and delivery please contact our
sales offices or e-mail to sales@vanlong.com.
Phone: +86 10 6301 4184
Fax: +86 10 6301 9167
Email: sales@vanlong.com
Web: http://www.vanlong.com
SR314B
© 2004 by Vanlong Technology Co., Ltd.
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