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參數(shù)資料
| 型號(hào)： | RF1304 |
| 廠商： | RF Monolithics, Inc. |
| 英文描述： | 391.250 MHz SAW Filter |
| 中文描述： | 391.250兆赫SAW濾波器 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 158K |
| 代理商： | RF1304 |
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
RF1304-062702
Page 1 of 2
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Nominal Frequency
f
C
IL
2, 4, 5, 6
3, 4, 7
391.250
MHz
dB
Insertion Loss
4 dB Passband
4.0
BW
3
BW
3
2, 3, 4, 7
±30
kHz
3 dB Reject Band
2, 3, 4, 7
kHz
Rejection
at f
C
±1.50 MHz
at f
C
±6.0 MHz
at f
C
±50 MHz
Operating Case Temperature
4
10
dB
25
Temperature
T
C
T
O
f
O
FTC
3, 7, 8
3
-40
+85
°C
Turnover Temperature
15
25
f
C
40
°C
Turnover Frequency
MHz
ppm/°C
2
ppm/yr
nH
pF
Frequency Temperature Coefficient
0.032
10
22
5-18
Frequency Aging
External Impedance
Absolute Value during the First Year
Series Inductance
Shunt Capacitance
IfAI
L
C
1, 7
Lid Symbolization (in addition to Lot and/or Date Codes)
RFM RF1304
TO39-3 Case
Ideal Front-End Filter for European Wireless Receivers
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
Rugged TO39 Hermetic Package
Complies with Directive 2002/95/EC (RoHS)
The RF1304 is a low-loss, compact and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 391.250 MHz receivers. Typical applications of these FSK receivers are wireless
remote-control and security devices operating in Europe.
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 frequen-
cy stability over a wide temperature range.
391.250 MHz
SAW Filter
RF1304
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Typical test circuit is shown for TO-39 RF filters.
2. Passband and reject bands are specified in reference to f
C
.
3. All characteristics are specified over the operating temperature range and typical aging for 10 years.
4. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture. Note that insertion loss, bandwidth, and pass-
band shape are dependent on the impedance matching component values and quality. Demonstration circuits are available for confirmation of device
performance.
5. One or more of the following U.S. Patents apply: 4,454,488; 4,616,197; and other pending.
6. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
7. The design, manufacturing process, and specifications of this device are subject to change without notice.
8. The turnover temperature, T
O
, is the temperature of maximum (or turnover) frequency, f
o
. The nominal frequency at any case temperature, T
C
, out-
side the operating temperature range may be calculated from: f = f
o
[1 - FTC (T
O
- T
C
)
2
].
Pb
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