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參數資料
| 型號： | RF1417D |
| 廠商： | RF Monolithics, Inc. |
| 英文描述： | 315.0 MHz SAW Filter |
| 中文描述： | 315.0兆赫SAW濾波器 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 68K |
| 代理商： | RF1417D |
RF Monolithics, Inc.
RFM Europe
1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
Phone: (972) 233-2903
Phone: 44 1963 251383
Fax: (972) 387-8148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
RF1417D-120805
Page 1 of 2
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency at 25°C
Insertion Loss
Absolute Frequency
f
c
1, 2, 3
314.85
315.00
1.6
315.15
2.5
MHz
dB
IL
MIN
BW
3
1, 3
3 dB Bandwidth
Rejection Attenuation: (relative to ILmin) 10 - 295 MHz
1, 3
500
46
41
27
17
7
20
15
43
55
55
600
51
46
30
20
10
24
18
48
60
60
800
kHz
1, 3
dB
295 - 305 MHz
305 - 310 MHz
310 - 313 MHz
313 - 314 MHz
316 - 320 MHz
320 - 325 MHz
325 - 335 MHz
335 - 600 MHz
600 - 1000 MHz
Temperature
Frequency Aging
Impedance @ fc
Freq. Temp. Coefficient
FTC
0.032
≤
10
ppm/
°C
2
ppm/yr
Absolute Value during the First Year
Input Z
IN
=R
IN
llC
IN
Output Z
OUT
=R
OUT
llC
OUT
lfAl
Z
IN
Z
OUT
5
1
4930
//2.09pf
4930
//2.09pf
550 // YWWS
Lid Symbolization (Y=year WW=week S=shift)
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
9
500 Pieces/Reel
3000 Pieces/Reel
Ideal Front-End Filter for Domestic Wireless Receivers
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
Complies with Directive 2002/95/EC (RoHS)
The RF1417D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to pro-
vide front-end selectivity in 315.0 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 wire-
less remote-control and security devices (especially for automotive keyless entry) operating in the USA
under FCC Part 15, in Canada under RSS-210, and in Italy
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 ad-
vanced SAW design and fabrication technology is utilized to achieve high performance and very low loss with
simple external impedance matching.
315.0 MHz
SAW Filter
RF1417D
SM3838-8 Case
3.8 x 3.8
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
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°C 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 Per ANSI / EIA 481.
2.
3.
4.
5.
6.
7.
8.
9.
Pb
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