RF3171 Datasheet PDF - RF Monolithics
| Part Number | RF3171 | |
| Description | SAW Filter | |
| Manufacturers | RF Monolithics | |
| Logo |  |
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• Ideal Front-End Filter for Wireless Receiver in the UK and USA
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
• Rugged TO39 Hermetic Package
• Complies with Directive 2002/95/EC (RoHS)
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The RF3171 is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 418.0 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz
direct conversion and superregen. Typical applications of these receivers are wireless remote-control and
security devices operating in the USA under FCC Part 15.
This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically greater
than 40 dB, of the LO and image spurious responses of superhet receivers with 10.7 MHz IF. RFM’s
advanced SAW design and fabrication technology is utilized to achieve high performance and very low loss
with simple external impedance matching (not included). Quartz construction provides excellent frequency
stability over a wide temperature range.
RF3171
418.0 MHz
SAW Filter
TO39-3 Case
Electrical Characteristics
Characteristic
Nominal Frequency
Insertion Loss
3 dB Bandwidth
Rejection
Temperature
Tolerance from 418.0 MHz
at fC - 21.4 MHz (Image)
at fC - 10.7 MHz (LO)
Ultimate
Operating Case Temp.
Turnover Temperature
Turnover Frequency
Freq. Temp. Coefficient
Frequency Aging
Absolute Value during the First Year
Impedance @ FC
ZIN=RIN//CIN
ZOUT=ROUT//COUT
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
www.DataSheet.net/
3, 4
5
1
Minimum
417.920
Typical
1.8
500 600
40 50
15 30
80
-35
15 25
fC
0.032
≤10
392 // 2.84 pF
476 Ω // 3.17 pF
RFM RF3171
Maximum
418.080
±80
3.5
800
+85
35
Units
MHz
dB
dB
kHz
dB
°C
°C
MHz
ppm/°C2
ppm/yr
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 Ω test system with
VSWR ≤ 1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, fc. Note that insertion loss, bandwidth,
and passband shape are dependent on the impedance matching component values and quality.
2. The frequency fc is defined as the midpoint between the 3dB frequencies.
3. Unless noted otherwise, specifications apply over the entire specified operating temperature range.
4. The 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].
5. 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.
6. The design, manufacturing process, and specifications of this device are subject to change without notice.
7. One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.
8. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
www.RFM.com E-mail: [email protected]
©2008 by RF Monolithics, Inc.
Page 1 of 2
RF3171 - 3/21/08
Datasheet pdf - http://www.DataSheet4U.co.kr/
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for RF3171 electronic component. |
| Information | Total 2 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ RF3171.PDF Datasheet ] | |
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