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參數資料
| 型號： | RF1181 |
| 廠商： | RF MONOLITHICS INC |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 916.5 MHz, SAW FILTER |
| 封裝： | ROHS COMPLIANT, HERMETIC, CASE TO39-3, 3 PIN |
| 文件頁數： | 1/2頁 |
| 文件大小： | 112K |
| 代理商： | RF1181 |
www.RFM.com
2008 by RF Monolithics, Inc.
E-mail: info@rfm.com
Page 1 of 2
RF1181 - 3/20/08
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency at 25°C Absolute Frequency
f
C
Δ
f
C
IL
BW
3
1, 2
916.400
916.500
916.600
MHz
Tolerance from 916.500 MHz
±100
kHz
Insertion Loss
3 dB Bandwidth
1
4
5
dB
kHz
1,2
600
750
1000
Rejection
at f
C
- 21.4 MHz (Image)
at f
C
- 10.7 MHz (LO)
Ultimate
Operating Case Temp.
1
33
40
dB
15
37
80
Temperature
T
C
T
O
f
O
FTC
3, 4
-40
+85
°C
°C
Turnover Temperature
25
Turnover Frequency
f
C
MHz
Freq. Temp. Coefficient
0.032
ppm/°C
2
ppm/yr
nH
pF
Frequency Aging
External Impedance
Absolute Value during the First Year
Series Inductance
Shunt Capacitance
|fA|
L
C
5
1
1
≤
10
Coilcraft 8.2 nH Chip Inductor
1
5
Lid Symbolization (in addition to Lot and/or Date Codes)
RFM RF1181
TO39-3 Case
Ideal Front-End Filter for 916.5 MHz Wireless Receivers
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
Rugged TO39 Hermetic Package
Complies with Directive 2002/95/EC (RoHS)
The RF1181 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 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 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 perfor-
mance and very low loss with simple external impedance matching (not included). Quartz con-
struction provides excellent frequency stability over a wide temperature range.
916.50 MHz
SAW Filter
RF1181
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
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, 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.
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.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| RF1181-000 | 功能描述:可復位保險絲 24V .75A-HD 40A MAX (R) RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C |
| RF1181B | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:916.5 MHz SAW Filter |
| RF1181D | 功能描述:信號調節 916.5MHz Narrowband Receiver Front End RoHS:否 制造商:EPCOS 產品:Duplexers 頻率:782 MHz, 751 MHz 頻率范圍: 電壓額定值: 帶寬: 阻抗:50 Ohms 端接類型:SMD/SMT 封裝 / 箱體:2.5 mm x 2 mm 工作溫度范圍:- 30 C to + 85 C 封裝:Reel |
| RF1182-000 | 功能描述:可復位保險絲 24V 1.1A-HD 40A MAX (R) RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C |
| RF1183 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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