|
|
PDF RF3181 Data sheet ( Hoja de datos )
| Número de pieza | RF3181 | |
| Descripción | SAW Filter | |
| Fabricantes | RF Monolithics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de RF3181 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
|
No Preview Available !
• Ideal Front-End Filter for 916.5 MHz Wireless Receivers
• Low-Loss, Coupled-Resonator Quartz Design
• Simple External Impedance Matching
• Rugged TO39 Hermetic Package
• Complies with Directive 2002/95/EC (RoHS)
Pb
The RF3181 is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 916.5 MHz receivers. Receiver designs using this filter include superhet with 10.7 MHz
or 500 kHz IF, direct conversion and superregen. Typical applications of these receivers are wireless remote-
control and security devices operating in the USA under FCC Part 15 and in Canada under DoC RSS-210.
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.
RF3181
916.50 MHz
SAW Filter
TO39-3 Case
Electrical Characteristics
Characteristic
Center Frequency at 25°C Absolute Frequency
Tolerance from 916.500 MHz
Insertion Loss
3 dB Bandwidth
Rejection
at fC - 21.4 MHz (Image)
at fC - 10.7 MHz (LO)
Ultimate
Temperature
Operating Case Temp.
Turnover Temperature
Turnover Frequency
Freq. Temp. Coefficient
Frequency Aging
Absolute Value during the First Year
External Impedance
Series Inductance
Shunt Capacitance
Lid Symbolization (in addition to Lot and/or Date Codes)
Sym
fC
∆fC
IL
BW3
TC
TO
fO
FTC
|fA|
L
C
Notes
1, 2
1
1,2
1
www.DataSheet.net/
3, 4
5
1
1
Minimum Typical Maximum
916.400
916.500
916.600
±100
3.2 5
600 750 1000
33 40
15 37
80
-40 +85
25
fC
0.032
≤10
Coilcraft 8.2 nH Chip Inductor
15
RFM RF3181
Units
MHz
kHz
dB
kHz
dB
°C
°C
MHz
ppm/°C2
ppm/yr
nH
pF
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
RF3181 - 3/21/08
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet RF3181.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| RF3181 | SAW Filter | RF Monolithics |
| RF3183 | QUAD-BAND/GSM850/EGSM900/DCS/PCS/POWER AMPLIFIER MODULE |  RF Micro Devices |
| RF3189 | QUAD-BAND GSM/EDGE/GSM850/EGSM900/DCS/PCS/POWER AMPLIFIER MODULE |  RFMD |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |