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參數(shù)資料
| 型號： | RP1286 |
| 廠商： | RF MONOLITHICS INC |
| 元件分類： | SAW諧振器 |
| 英文描述： | 2-PORT SAW RESONATOR, 906 MHz |
| 封裝： | RUGGED, HERMETIC, LOW-PROFILE, TO-39, 3 PIN |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 149K |
| 代理商： | RP1286 |
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.
RP1286-071205
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency
Absolute Frequency
fC
2, 3, 4, 5,
905.900
906.100
MHz
Tolerance from 906.000 MHz
f
C
±100
kHz
Insertion Loss
IL
2, 5, 6
7.0
8.2
dB
Quality Factor
Unloaded Q
QU
5, 6, 7
6,600
50
Loaded Q
QL
3,700
Temperature Stability
Turnover Temperature
TO
6, 7, 8
16
31
46
°C
Turnover Frequency
fO
fC+1
kHz
Frequency Temp. Coefficient
FTC
0.037
ppm/°C2
Frequency Aging
Absolute Value during First Year
|fA|
6
≤ 10
ppm/yr
DC Insulation Resistance between Any Two Pins
5
1.0
M
RF Equivalent RLC
Motional Resistance
RM
5, 7, 9
126
216
Motional Inductance
LM
147.985
H
Motional Capacitance
CM
0.208528
fF
Shunt Static Capacitance
CO
5, 6, 9
1.6
1.9
2.2
pF
Lid Symbolization (in addition to Lot and/or Date Codes)
RFM P1286
TO39-3 Case
Ideal for 905.8 MHz Local Oscillators
Nominal Insertion Phase Shift of 180° at Resonance
Quartz Stability
Rugged, Hermetic, Low-Profile TO39 Case
Complies with Directive 2002/95/EC (RoHS)
The RP1286 is a two-port, 180° 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 or
near 905.8 MHz. This resonator is designed specifically for use in the local oscillator of 916.5 MHz superhet-
erodyne receivers operating in the USA under FCC Part 15.249 and in Canada under DoC RSS-210. It is
also suitable for a variety of other oscillator applications.
Absolute Maximum Ratings
Rating
Value
Units
CW RF Power Dissipation (See: Typical Test Circuit)
+5
dBm
DC Voltage Between Any Two Pins (Observe ESD Precautions)
±30
VDC
Case Temperature
-40 to +85
°C
906.0 MHz
SAW
Resonator
RP1286
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 significantly in subsequent years.
2.
The frequency fC is the frequency of minimum IL with the resonator in the specified test fixture in a 50 test system with VSWR ≤ 1.2:1. Typically,
fOSCILLATOR or fTRANSMITTER is less than the resonator fC.
3.
One or more of the following United States patents apply: 4,454,488; 4,616,197.
4.
Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufac-
turer.
5.
Unless noted otherwise, case temperature TC = +25°C± 5°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]. Typically, oscillator T
O is 20° less than the specified resonator TO.
9.
This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance
CO is the measured static (nonmotional) capacitance between either pin 1 and ground or pin 2 and ground. The measurement includes case parasitic
capacitance.
Pb
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