参数资料
型号: RF1407D
厂商: RFM
文件页数: 1/2页
文件大小: 0K
描述: SAW FILTER 868.6MHZ SM3838-8
标准包装: 500
频率: 868.6MHz 中心
带宽: 1.8MHz
滤波器类型: 带通
插入损耗: 3dB
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)
RF1407D
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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)
Pb
868.60 MHz
The RF1407D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 868.60 MHz receivers. Receiver designs using this filter include superhet IF, direct
conversion and superregen. Typical applications of these receivers are wireless remote-control and security
devices operating in Europe under ETSI I-ETS 300 220, in Germany under FTZ 17 TR 2100, in the United
Kingdom under DTI MPT 1340 (for automotive only), in France under PTT Specifications ST/PAA/TPA/AGH/
1542, and in Scandinavia.
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).
SAW Filter
SM3838-8 Case
3.8 x 3.8
Electrical Characteristics
Characteristic
Center Frequency @ 25°C
Minimum I.L. (868.210-868.990 MHz)
1dB Bandwidth 868.05-869.15
-45°C to +90°C
-25°C to +60°C
Pass Bandwidth (relative to IL min )
Sym
f C
BW 3
Notes
1, 2, 3
1, 3
1
1, 3
Minimum
960
1000
1200
Typical
868.60
3.0
1800
Maximu
m
4.2
Units
MHz
dB
kHz
kHz
Rejection (relative to IL min )
10-700 MHz
700-830 MHz
830-850 MHz
50
40
32
55
45
37
Temperature Coeff
Operating Temperature Range
850-865.02 MHz
871-874.5 MHz
874.5-883 MHz
883-900 MHz
900-1000 MHz
1, 3
25
11
16
30
40
-45
28
14
21
33
45
0.032
+90
dB
ppm/°C 2
°C
Impedance @ fc
Input Z IN = R IN ll C IN
Output Z OUT = R OUT ll C OUT
Z IN
Z OUT
1
1
117 Ω ll 3.7pf
117 Ω ll 3.7pf
Lid Symbolization (in addition to Lot and/or Date Codes)
505 // YWWS
Standard Reel Quantity
7 Inch Reel
13 Inch Reel
8
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 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, f c . Note that insertion loss and band-
width 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 -45°C to +90°C.
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 Per ANSI / EIA 481.
This product complies with directive 2002/95/EC of the European Parlament and of the Council of 27 January 2003 on the restriction of the use of
certain hazardous substances in electrical and electronic equipment.
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 1 of 2
RF1407D - 5/13/08
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