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參數(shù)資料
| 型號： | RO2073A-4 |
| 廠商： | RF MONOLITHICS INC |
| 元件分類： | SAW諧振器 |
| 英文描述： | 1-PORT SAW RESONATOR, 315.05 MHz |
| 封裝： | CERAMIC, SM-2, 4 PIN |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 171K |
| 代理商： | RO2073A-4 |
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
E-mail: info@rfm.com
Page 1 of 2
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
RO2073A-4-061901
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency at +25 °C
Absolute Frequency
fC
2,3,4,5
314.975
315.125
MHz
Tolerance from 315.05 MHz
f
C
±75
kHz
Insertion Loss
IL
2,5,6
1.3
2.2
dB
Quality Factor
Unloaded Q
QU
5,6,7
15,300
50
Loaded Q
QL
2,100
Temperature Stability
Turnover Temperature
TO
6,7,8
10
25
40
°C
Turnover Frequency
fO
fC
Frequency Temperature Coefficient
FTC
0.032
ppm/°C2
Frequency Aging
Absolute Value during the First Year
|fA|
1
≤10
ppm/yr
DC Insulation Resistance between Any Two Terminals
5
1.0
M
RF Equivalent RLC Model
Motional Resistance
RM
5, 6, 7, 9
16
29
Motional Inductance
LM
127.430
H
Motional Capacitance
CM
2.00267
fF
Shunt Static Capacitance
CO
5, 6, 7,9
2.0
2.3
2.6
pF
Test Fixture Shunt Inductance
LTEST
2, 7
110
nH
Lid Symbolization (in addition to Lot and/or Date Codes)
148
Ideal for European 315.05 MHz Transmitters
Very Low Series Resistance
Quartz Stability
Surface-Mount Ceramic Case with 21 mm2 Footprint
The RO2073A-4 is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount, ceramic
case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters
operating at 315.05 MHz. This SAW is designed specifically for remote-control and wireless security trans-
mitters operating in the USA under FCC Part 15, in Canada under DoC RSS-210, and in Italy.
Absolute Maximum Ratings
Rating
Value
Units
CW RF Power Dissipation (See: Typical Test Circuit)
+0
dBm
DC voltage Between Terminals
±30
VDC
Case Temperature
-40 to +85
°C
Soldering Temperature
+250
°C
315.05 MHz
SAW
Resonator
RO2073A-4
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
Lifetime (10 year) frequency aging.
2.
The center frequency, fC, is measured at the minimum insertion loss point,
ILMIN, with the resonator in the 50 test system (VSWR ≤ 1.2:1). The shunt
inductance, LTEST, is tuned for parallel resonance with CO at fC.
3.
One or more of the following United States patents apply: 4,454,488 and
4,616,197.
4.
Typically, equipment utilizing this device requires emissions testing and gov-
ernment approval, which is the responsibility of the equipment manufacturer.
5.
Unless noted otherwise, case temperature TC = +25°C±2°C for all specifica-
tions.
6.
The design, manufacturing process, and specifications of this device are sub-
ject to change without notice.
7.
Derived mathematically from one or more of the following directly measured
parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO.
8.
Turnover temperature, TO, is the temperature of maximum (or turnover) fre-
quency, fO. The nominal frequency at any case temperature, TC, may be cal-
culated from: f= fO [1- FTC (TO -TC)
2].
9.
This equivalent RLC model approximates resonator performance near the
resonant frequency and is provided for reference only. The capacitance CO is
the static (nonmotional) capacitance between the two terminals measured at
low frequency (10 MHz) with a capacitance meter. The measurement
includes parasitic capacitance with “NC” pads unconnected. Case parasitic
capacitance is approximately 0.05pF. Transducer parallel capacitance can be
calculated as: CP ≈ CO - 0.05 pF.
SM-2 Case
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RO2073A-5 | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:315.05 MHz SAW Resonator |
| RO2073A-6 | 功能描述:SAW RESONATOR 315MHZ SMD RoHS:是 類別:晶體和振蕩器 >> 諧振器 系列:RO2073A-6 標準包裝:1 系列:CERASONATOR® CRK 頻率:500kHz 類型:陶瓷 特點:- 頻率穩(wěn)定性:±0.3% 頻率公差:±0.5% 阻抗:400 歐姆 電容:560pF 工作溫度:-20°C ~ 80°C 安裝類型:通孔 封裝/外殼:徑向，盒 - 2 引線，5.00mm 間距 尺寸/尺寸:0.303" L x 0.134" W（7.70mm x 3.40mm） 高度:0.209"（5.30mm） 包裝:散裝 其它名稱:CRK500TK9944TK9944CTTK9944CT-ND |
| RO2073C | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:315.0 MHz SAW Resonator |
| RO2073D | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:Ideal for 315MHz Automotive-Keyless-Entry Transmitters |
| RO2073E | 功能描述:諧振器 315.0MHz +/-100kHz Single Port RoHS:否 制造商:Murata 頻率:30 MHz 容差:25 PPM 系列:XRCGB 端接類型:SMD/SMT 工作溫度范圍:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封裝:Reel |
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