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PDF RF1432C Data sheet ( Hoja de datos )
| Número de pieza | RF1432C | |
| Descripción | SAW Filter | |
| Fabricantes | RF Monolithics | |
| Logotipo |  |
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• Ideal Front-End Filter for European Wireless Receivers
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
• Complies with Directive 2002/95/EC (RoHS)
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The RF1432C is a low-loss, compact and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 319.500 MHz receivers. Recevier designs using this filter include superhet with
10.7 MHz or 500 kHz IF, direct conversion and superregen.
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.
RF1432C
319.500 MHz
SAW Filter
Electrical Characteristics
Characteristic
Center Frequency at 25°C
Insertion Loss
3 dB Bandwidth
Rejection
Temperature
Absolute Frequency
Tolerance from 319.500 MHz
at fc - 21.4 MHz (Image)
at fc - 10.7 MHz (LO)
Ultimate
Operating Case Temperature
Turnover Temperature
Turnover Frequency
Frequency Temperature Coefficent
Frequency Aging
Absolute Value during the First Year
Impedance @ FC
INPUT ZIN = RIN // CIN
OUTPUT ZOUT = ROUT // COUT
Lid Symbolization (in addition to Lot and/or Date Codes)
Sym
fC
∆fC
IL
BW3
Notes
1, 2
1
1, 2
1
TC
TO
fO
FTC
www.DataSheet.net/
IfAI
ZIN
ZOUT
3, 4
5
1
1
SM5050-8 Case
5x5
Minimum Typical Maximum
319.420
319.580
±80
1.8 2.8
500 600 800
40 50
40 50
80
-40 +85
25 40 55
fC
0.032
≤10
3.97kΩ // 4.37pF
2.56kΩ // 4.27pF
621 // DATECODE
Units
MHz
kHz
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. Where noted, 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 3
RF1432C - 3/21/08
Datasheet pdf - http://www.DataSheet4U.co.kr/
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| PDF Descargar | [ Datasheet RF1432C.PDF ] | |
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