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PDF RF1355 Data sheet ( Hoja de datos )
| Número de pieza | RF1355 | |
| Descripción | SAW Filter | |
| Fabricantes | RMF | |
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• Ideal for 390.0 MHz Transmitters
• Very Low Series Resistance
• Quartz Stability
• Rugged, Hermetic, Low-Profile TO39 Case
• Complies with Directive 2002/95/EC (RoHS)
Pb
The RF1355 is a true one-port. surface-acoustic-wave (SAW) filter in a low-profile TO39 case. It
provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency
transmiters operating at 390.0 MHz.
Absolute Maximum Ratings
Rating
CW RF Power Dissipation (See: Typical Test Circuit)
DC Voltage Between Any Two Pins (Observe ESD Precautions)
Case Temperature
Value
+5
±30
-40 to +85
Units
dBm
VDC
°C
RF1355
390.0 MHz
SAW Filter
TO39-3 Case
Electrical Characteristics
Characteristic
Nominal Frequency
Tolerance from 390.0 MHz
Insertion Loss
3 dB Bandwidth
Rejection
at fc -21.4 MHz (Image)
at fc -10.7 MHz (LO)
Temperature
Operating Case Temperature
Turnover Temperature
Turnover Frequency
Freq. Temp. Coefficient
Frequency Aging
Absolute Value during the First Year
Lid Symbolization (in addition to Lot and / or Date Codes)
Sym
fC
∆fC
IL
BW3
TC
TO
fO
FTC
[fA]
Notes
1, 2
1
1, 2
1
3,4
5
Minimum
389.900
Typical
330
40
15
-35
25
fC
0.032
≤10
RFM RF1355
Maximum
390.100
±100
5.0
550
+85
Units
MHz
kHz
dB
kHz
dB
°C
°C
MHz
ppm/°C2
ppm/yr
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 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. Typically, fOSCILLATOR 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. 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 TO is 20°C 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 static (nonmotional) capacitance between pin1 and pin 2 measured at low frequency (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 approximately 0.25 pF to CO.
www.RFM.com E-mail: [email protected]
©2008 by RF Monolithics, Inc.
Page 1 of 2
RF1355 - 3/21/08
Free Datasheet http://www.datasheetlist.com/
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