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| 型号： | RO2193A |
| 厂商： | RF MONOLITHICS INC |
| 元件分类： | SAW谐振器 |
| 英文描述： | 1-PORT SAW RESONATOR, 379.3 MHz |
| 封装： | ROHS COMPLIANT, HERMETIC, CERAMIC, CASE SM-2, 4 PIN |
| 文件页数： | 1/2页 |
| 文件大小： | 114K |
| 代理商： | RO2193A |
www.RFM.com
E-mail: info@rfm.com
Page 1 of 2
2008 by RF Monolithics, Inc.
RO2193A - 3/26/08
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency at +25 °C
Absolute Frequency
fC
2, 3, 4, 5
379.2
379.3
379.4
MHz
Tolerance from 304.0 MHz
ΔfC
±100
kHz
Insertion Loss
IL
2, 5, 6
0.9
2.0
dB
Quality Factor
Unloaded Q
QU
5, 6, 7
13,000
50
Ω Loaded Q
QL
2,000
Temperature Stability
Turnover Temperature
TO
6, 7, 8
27
42
57
°C
Turnover Frequency
fO
fC-5
kHz
Frequency Temperature Coefficient
FTC
0.037
ppm/°C2
Frequency Aging
Absolute Value during the First Year
|fA|
1
≤10
ppm/yr
DC Insulation Resistance between Any Two Terminals
5
1.0
M
Ω
RF Equivalent RLC Model
Motional Resistance
RM
5, 7, 9
18
25
Ω
Motional Inductance
LM
107
H
Motional Capacitance
CM
1.6
fF
Pin 1 to Pin 2 Static Capacitance
CO
5, 6, 9
3.6
3.9
4.2
pF
Transducer Static Capacitance
CP
5, 6, 7, 9
2.7
pF
Test Fixture Shunt Inductance
LTEST
2, 7
57
nH
Lid Symbolization
TBD
SM-2 Case
Ideal for 390 MHz Superhet Receiver LO
Very Low Series Resistance
Quartz Stability
Rugged, Hermetic, Surface Mount SM-2 Package
Complies with Directive 2002/95/EC (RoHS)
The RO2193A is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic case.
It provides reliable, fundamental-mode, quartz frequency stabilization of local oscillators operating at
approximately 379.3 MHz. This SAW is designed for 390 MHz superhet receivers with 10.7 MHz IF.
Applications include keyless-entry receivers operating in the USA under FCC Part 15, in Canada under DOC
RSS-210, and in Italy.
Absolute Maximum Ratings
Rating
Value
Units
CW RF Power Dissipation
+5
dBm
DC Voltage Between Any Two Pins (Observe ESD Precautions)
±30
VDC
Case Temperature
-40 to +85
°C
Soldering Temperature (10 seconds / 5 cycles max.)
260
°C
379.3 MHz
SAW
Resonator
RO2193A
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
Lifetime (10 year) frequency aging.
2.
The center frequency, fC, is measured at the minimum insertion loss
point, ILMIN, with the resonator in the 50 Ω test system (VSWR ≤
1.2:1). The shunt inductance, LTEST, is tuned for parallel resonance
with CO at fC.
3.
One or more of the following United States patents apply: 4,454,488
and 4,616,197.
4.
Typically, equipment utilizing this device requires emissions testing
and government approval, which is the responsibility of the equipment
manufacturer.
5.
Unless noted otherwise, case temperature TC = +25°C±2°C.
6.
The design, manufacturing process, and specifications of this device
are subject to change without notice.
7.
Derived mathematically from one or more of the following directly
measured parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO.
8.
Turnover temperature, TO, is the temperature of maximum (or
turnover) frequency, fO. The nominal frequency at any case
temperature, TC, may be calculated from: f = fO [1 - FTC (TO -TC)
2].
9.
This equivalent RLC model approximates resonator performance near
the resonant frequency and is provided for reference only. The
capacitance CO is the static (nonmotional) capacitance between the
two terminals measured at low frequency (10 MHz) with a capacitance
meter. The measurement includes parasitic capacitance with a floating
case. Case parasitic capacitance is approximately 0.25pF.
Transducer parallel capacitance can be calculated as: CP ≈ CO -
0.25pF.
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