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參數(shù)資料
| 型號： | RO2001 |
| 廠商： | RF MONOLITHICS INC |
| 元件分類： | SAW諧振器 |
| 英文描述： | 1-PORT SAW RESONATOR, 567.15 MHz |
| 封裝： | RUGGED, HERMETIC, LOW-PROFILE, TO-39, 3 PIN |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 258K |
| 代理商： | RO2001 |
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
E-mail: info@rfm.com
Page 1 of 2
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
RO2001-102199
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency at 25 °C
Absolute Frequency
fC
2, 3, 4, 5
567.050
576.250
MHz
Tolerance from 567.150 MHz
f
C
±100
kHz
Insertion Loss
IL
2, 5, 6
6.0
7.0
dB
Quality Factor
Unloaded Q
QU
5, 6, 7
9,600
50
Loaded Q
QL
4,800
Temperature Stability
Turnover Temperature
TO
6, 7, 8
56
71
86
°C
Turnover Frequency
fO
fc + 44
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 Pins
5
1.0
M
RF Equivalent RLC Model
Motional Resistance
RM
5, 7, 9
100
124
Motional Inductance
LM
269.397
H
Motional Capacitance
CM
0.292315
fF
Pin 1 to Pin 2 Static Capacitance
CO
5, 6, 9
0.8
1.1
1.4
pF
Transducer Static Capacitance
CP
5, 6, 7, 9
0.8
pF
Test Fixture Shunt Induc-
LTEST
2, 7
72
nH
Lid Symbolization
RFM RO2001
TO39-3 Case
Ideal for Baseband CATV Downconverter LOs
True One-Port Configuration
Quartz Stability
Rugged, Hermetic, Low-Profile TO39 Case
The RO2001 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It pro-
vides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency oscillators operating at
567.15 MHz. Although it is suitable for a wide variety of oscillator applications, this resonator is designed for
the second LO in CATV downconverters with the high IF at 612 MHz and the output at 45 MHz (baseband).
Absolute Maximum Ratings
Rating
Value
Units
CW RF Power Dissipation
+10
dBm
DC Voltage Between Terminals
±30
VDC
Case Temperature
-40 to +85
°C
567.15 MHz
SAW
Resonator
RO2001
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
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 signifi-
cantly in subsequent years.
2.
The center frequency, fC, is measured at the minimum insertion loss point,
ILMIN, with the resonator in the 50 test system (VSWR ≤ 1.2:1). The shunt
inductance, LTEST, is tuned for parallel resonance with CO at fC. Typically, fOS-
CILLATOR or fTRANSMITTER is less than the resonator fC.
3.
One or more of the following United States patents apply: 4,454,488 and
4,616,197 and others pending.
4.
Typically, equipment designs utilizing this device require 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.
The turnover temperature, TO, is the temperature of maximum (or turnover) fre-
quency, fO. The nominal center 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 reso-
nant frequency and is provided for reference only. The capacitance CO is the
static (nonmotional) capacitance between pin1 and pin 2 measured at low fre-
quency (10 MHz) with a capacitance meter. 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 approxi-
mately 0.25pF to CO.
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