GWR433A Datasheet, PDF (2/2 Pages) List of Unclassifed Manufacturers – True one-Port, Surface-acoustic-wave (SAW) Resonator in a Low-Profile

GW
7.Performance
7-1.Maximum Rating
SAW Resonator
Rating
CW RF Power Dissipation
DC Voltage Between Any Two Pins
Case Temperature
Value
+10
f30V
-40 to +85
7-2.Electronic Characteristics
GWR433A
Units
dBm
VDC
ć
Characteristic
Center Frequency ^{Absolute Frequency}
(+25ć)
Tolerance from 433.92 MHz
Insertion Loss
Sym
f_C
f_C
IL
Minimum
433.845
Typical
f75
1.5
Maximum
433.995
2.2
Quality Factor
Unloaded Q
50 Loaded Q
Q_U
12,500
Q_L
2,000
Temperature
Stability
Turnover Temperature
Turnover Frequency
T_O
25
40
55
f_O
fc
Frequency Temperature Coefficient FTC
0.037
Frequency Aging Absolute Value during the First Year
f_A
DC Insulation Resistance Between Any Two Pins
1.0
Ä°10
Motional Resistance
R_M
19
29
RF Equivalent ^{Motional Inductance}
L_M
RLC Model
Motional Capacitance
C_M
120.311
2.1240
Pin 1 to Pin 2 Static Capacitance
C_O
2.1
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling !
Units
MHz
kHz
dB
ć
kHz
ppm/ć²
ppm/yr
M
H
fF
pF
NOTES:
1.Frequency aging is the change in f_C with time and is specified
at +65 ć or less. Aging may exceed the specification for
prolonged temperatures above +65 ć . Typically, aging is
greatest the first year after manufacture, decreasing in
subsequent years.
2.The center frequency, f_C ,is the frequency of minimum IL with
the resonator in the specified test fixture in a 50 test system
with VSWR Ä° 1.2 : 1. Typically, f_oscillator or f_transmitter is less
than the resonator f_C.
3.Typically, equipment utilizing this device requires emissions
testing and government approval, which is the responsibility of
the equipment manufacturer.
4.Unless noted otherwise , case temperature T_C=+25ćf2ć.
5.The design, manufacturing process, and specifications of this
device are subject to change without notice.
6.Derived mathematically from one or more of the following
directly measured parameters: f_C, IL, 3 dB bandwidth, f_C
versus T_C , and C_O.
7.Turnover temperature, T_O, is the temperature of maximum (or
turnover) frequency, f_O, The nominal center frequency at any
case temperature , T_C, may be calculated from :f = f_OË·1-FTC
(T_O-T_C) ² ˹ .Typically, oscillator T_O is 20 ć less than the
specified resonator T_O.
8.This equivalent RLC model approximates resonator
performance near the resonant frequency and is provided for
reference only . The capacitance C_O is the measured static
( nonmotional ) capacitance between either pin 1 and ground
or pin 2 and ground .The measurement includes case
parasitic capacitance with a floating case. For usual grounded
case applications (with ground connected to either pin 1 or pin
2 and to the case), add approximately 0.25 pF to C_O.
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