- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373261 > RF1254 Analog IC PDF資料下載
參數(shù)資料
| 型號(hào)： | RF1254 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 240K |
| 代理商： | RF1254 |
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) 387-9148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
RF1254-110800
Page 1 of 2
Electrical Characteristics
Characteristic
Absolute Frequency
Tolerance from 433.92 MHz
Sym
f
C
f
C
IL
BW
3
Notes
Minimum
952.675
Typical
952.775
±100
3
Maximum
952.875
Units
MHz
kHz
dB
kHz
Center Frequency at 25°C
2, 3, 4, 5, 6
Insertion Loss
3 dB Bandwidth
Rejection
2, 4, 7
2, 3, 4, 7
5.0
1550
1250
35
15
at f
C
- 21.4 MHz (Image)
at f
C
- 10.7 MHz (LO)
Ultimate
Operating Case Temp.
Turnover Temperature
Turnover Frequency
Freq. Temp. Coefficient
Absolute Value during the First Year
Series Inductance
2
50
30
dB
80
Temperature
T
C
T
O
f
O
FTC
|fA|
L1
L2
C1
C2
4, 7, 8
-35
20
+85
30
°C
°C
MHz
ppm/°C
2
ppm/yr
nH
25
f
C
0.032
<±10
4.8
4.8
8
8.3
Frequency Aging
External Impedance
1
2, 7
Shunt Capacitance
pF
Lid Symbolizaation (in addition to Lot and/or Date Codes)
RFM RF1254
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
The RF1254 is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 952.775 MHz receivers. 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.
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 execellent fre-
quency stablility over a wide temperature range.
952.775 MHz
SAW Filter
RF1254
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Frequency aging is the change in f
C
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.
2. 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’s 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 optimum impedance matching component val-
ues are dependent on circuit parasitic losses.
3. The frequency f
C
is defined as the midpoint between the 3dB frequencies.
4. Unless noted otherwise, specifications apply over the entire specified operating temperature range.
5. One or more of the following U.S. Patents apply: 4,454,488; 4,616,197; and others 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 center frequency at any case temperature,
TC, may be calculated from: f=f
O
[1-FTC (T
O
-T
C
)2].
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RF1283 | Analog IC |
| RF1306 | Analog IC |
| RF1316 | Analog IC |
| RF1327-1 | Analog IC |
| RF133 | RF/IF Transceiver For GSM Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RF1256-000 | 功能描述:可復(fù)位保險(xiǎn)絲 24VDC 30V-CLAMP .25PF 350V-TRG 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(fēng)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 |
| RF1259-000 | 制造商:TE CONNECTIVITY RAYCHEM-POLYSWITCH 功能描述:RLINE / RUEF900-1 |
| RF125AA10 | 制造商:Johanson Manufacturing 功能描述:RF RESISTOR |
| RF125AA11 | 制造商:Johanson Manufacturing 功能描述:RF RESISTOR |
| RF1260-000 | 制造商:TE Connectivity 功能描述:Gas Discharge Tubes 75VDC 5KADC 5AAC 1.2pF Solder Pad SMD 制造商:TE Connectivity 功能描述:GTCS35-750M-R05 - Trays 制造商:TE Connectivity 功能描述:GAS TUBE 5MM 75V 20% SMD 5KA 制造商:TE CONNECTIVITY RAYCHEM-POLYSWITCH 功能描述:GDT / GTCS35-750M-R05 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。