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| 型号： | RF3181E |
| 厂商： | RFM |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | NARROWBAND FILTER, SM3030-6 |
| 标准包装： | 1 |
| 频率： | 916.5MHz 中心 |
| 带宽： | 750kHz |
| 滤波器类型： | 带通 |
| 插入损耗： | 2.7dB |
| 应用： | 仪表读取 |
| 封装/外壳： | 6-SMD，无引线 |
| 安装类型： | 表面贴装 |
| 包装： | 标准包装 |
| 高度（最大）： | 0.054"（1.38mm） |
| 尺寸/尺寸： | 0.118" L x 0.118" W（3.00mm x 3.00mm） |
| 其它名称： | 583-1066-6 |
RF3181E
?
Front-end Filter for 916.5 MHz Wireless Receivers
?
?
?
Low-loss, Coupled-resonator Quartz Design
Simple External Impedance Matching
Complies with Directive 2002/95/EC (RoHS)
Pb
916.5 MHz
SAW Filter
The RF3181E 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
IF, direct conversion and superregen. Typical applications of these receivers are wireless remote-control and
security, data telemetry, and meter reading 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).
SM3030-6 Case
3.0 x 3.0
Electrical Characteristics
Characteristic
Center Frequency at 25°C
Insertion Loss
3 dB Bandwidth
Absolute Frequency
Tolerance from 916.50 MHz
Sym
f c
? f c
IL
BW 3
Notes
1, 2, 3
1, 3
1, 3
Minimum
500
Typical
916.5
2.7
750
Maximum
4.0
900
Units
MHz
kHz
dB
kHz
Rejection relative to Min IL:
10 to 895 MHz
895 to 906 MHz
906 to 910 MHz
40
30
25
50
35
30
922 to 925 MHz
925 to 933 MHz
933 to 940 MHz
940 to 1100 MHz
1, 3
40
15
30
35
50
20
35
40
dB
Temperature
Frequency Aging
Impedance @ f C
Freq. Temp. Coefficient
Absolute Value during the First Year
Input Z IN = R IN /C IN
Output Z OUT = R OUT /C OUT
FTC
|fA|
Z IN
Z OUT
3, 4
5
1
0.032
? 10
54.2k ? || 1.44pF
52.8k ? || 1.30pF
ppm/
°C 2
ppm/yr
Lid Symbolization (in addition to Lot and/or Date Codes)
698 || YWWS
Standard Reel Quantity
Standard Reel Quantity
7 Inch Reel
13 Inch Reel
9
500 Pieces/Reel
3000 Pieces/Reel
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 ? test system with
VSWR ? 1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, f c . Note that insertion loss and band-
width and passband shape are dependent on the impedance matching component values and quality.
The frequency f c is defined as the midpoint between the 3dB frequencies.
Where noted specifications apply over the entire specified operating temperature range of -40 to 90 °C.
The turnover temperature, T O , is the temperature of maximum (or turnover) frequency, f o . The nominal frequency at any case temperature, T c , may
be calculated from: f = f o [1 - FTC (T o - T c ) 2 ].
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.
The design, manufacturing process, and specifications of this device are subject to change.
One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.
All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
Tape and Reel Standard for ANSI/EIA 481.
www.RFM.com E-mail: info@rfm.com
? 2008-2012 by RF Monolithics, Inc.
Page 1 of 4
RF3181E - 11/30/12
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PDF描述 |
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| RF3181 | SAW FILTER 916.50MHZ TO39-3 |
| RF3210D | SAW FILTER 303.825MHZ SM3838-8 |
| RF3210 | SAW FILTER 303.825MHZ TO39-3 |
| RF3319D | SAW FILTER 868.95MHZ SM3838-8 |
| RF3319E | SAW FILTER 868.95MHZ SM3030-6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RF3182-000 | 制造商:TE Connectivity 功能描述:SMDC185F/33-2 - Tape and Reel |
| RF-3183-AT001 | 制造商:HARRIS 制造商全称:HARRIS 功能描述:MULTIBAND VEHICULAR ANTENNA SERIES |
| RF-3183-AT002 | 制造商:HARRIS 制造商全称:HARRIS 功能描述:MULTIBAND VEHICULAR ANTENNA SERIES |
| RF-3183-AT003 | 制造商:HARRIS 制造商全称:HARRIS 功能描述:MULTIBAND VEHICULAR ANTENNA SERIES |
| RF-3183-AT004 | 制造商:HARRIS 制造商全称:HARRIS 功能描述:MULTIBAND VEHICULAR ANTENNA SERIES |
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