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参数资料
| 型号： | RF3171D |
| 厂商： | RFM |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | SAW FILTER 418MHZ SM3838-8 |
| 标准包装： | 500 |
| 频率： | 418MHz 中心 |
| 带宽： | 620kHz |
| 滤波器类型： | 带通 |
| 插入损耗： | 1.6dB |
| 应用： | 远程控制 |
| 封装/外壳： | 8-SMD，无引线 |
| 安装类型： | 表面贴装 |
| 包装： | 带卷 (TR) |
| 高度（最大）： | 0.055"（1.40mm） |
| 尺寸/尺寸： | 0.150" L x 0.150" W（3.80mm x 3.80mm） |
RF3171D
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Ideal Front-End Filter for Wireless Receiver in the US and UK
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Low-Loss, Coupled-Resonator Quartz Design
Surface-Mount Ceramic Case with 50 mm 2 Footprint
Simple External Impedance Matching
Complies with Directive 2002/95/EC (RoHS)
Pb
418.0 MHz
SAW Filter
The RF3171D 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
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.
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.
SM3838-8 Case
3.8 x 3.8
Electrical Characteristics
Characteristic
Center Frequency
Minimum I.L.
Pass bandwidth (relative to IL min )
Sym
F C
IL min
BW 3
Notes
1, 2, 3
1, 3
1, 3
Minimum
500
Typical
418.0
1.6
620
Maximum
2.5
800
Units
MHz
dB
kHz
Attenuation: (relative to IL min )
10.00 - 400.00 MHz
400.00 - 413.00 MHz
50
30
60
35
413.00 - 417.00 MHz
419.00 - 426.00 MHz
426.00 - 435.00 MHz
435.00 - 1000 MHz
1, 3
13
10
35
50
15
11
38
56
dB
Impedance at F C ; Input
Impedance at F C ; Output
Z IN =R IN //C IN
Z OUT =R OUT //C OUT
1
2.58 k ? // 3.37 pF
1.92 k ? // 3.55 pF
? //pF
? //pF
Frequency Aging
Absolute Value during the First Year
|fA|
5
≤ 10
ppm/yr
Lid Symbolization (in addition to Lot and/or Date Codes)
775 YWWS
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
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, bandwidth,
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.
Unless noted otherwise, specifications apply over the entire specified operating temperature range. (-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 without notice.
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 Per ANSI / EIA 481.
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 1 of 4
RF3171D - 3/21/08
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PDF描述 |
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| RF3171 | SAW FILTER 418MHZ TO39-3 |
| RF3181D | SAW FILTER 916.5MHZ SM3838-8 |
| RF3181E | NARROWBAND FILTER, SM3030-6 |
| RF3181 | SAW FILTER 916.50MHZ TO39-3 |
| RF3210D | SAW FILTER 303.825MHZ SM3838-8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RF3174-000 | 制造商:TE Connectivity 功能描述:POLYSWITCH RESETTABLE DEVICE - Bag 制造商:TE Connectivity 功能描述:POLYSWITCH PTC RESET 240V 0.75A |
| RF3175-000 | 制造商:TE Connectivity 功能描述:POLYSWITCH RESETTABLE DEVICE - Bag 制造商:TE Connectivity 功能描述:POLYSWITCH PTC RESET 240V 1A |
| RF3176-000 | 制造商:TE Connectivity 功能描述:POLYSWITCH RESETTABLE DEVICE - Bag 制造商:TE Connectivity 功能描述:POLYSWITCH PTC RESET 240V 1.25A |
| RF3177-000 | 制造商:TE Connectivity 功能描述:POLYSWITCH RESETTABLE DEVICE - Bag 制造商:TE Connectivity 功能描述:POLYSWITCH PTC RESET 240V 2A |
| RF3178SR | 制造商:RF Micro Devices Inc 功能描述: 制造商:RFMD 功能描述: |
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