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RO2104A

更新时间： 2024-02-06 17:07:09
品牌 Logo 应用领域
RFM 谐振器
页数 文件大小 规格书
2页 97K
描述
303.825 MHz SAW Resonator

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RO2104A 技术参数

生命周期：Obsolete包装说明：ROHS COMPLIANT, CERAMIC, CASE SM3030-6, 6 PIN
Reach Compliance Code：unknown风险等级：5.84
其他特性：TAPE AND REEL晶体/谐振器类型：1-PORT
频率容差 (MHz)：0.1插入损耗：2 dB
安装特点：SURFACE MOUNT标称工作频率：303.825 MHz
并联电容：3.45 pF物理尺寸：L3.13XB3.13XH1.38 (mm)/L0.123XB0.123XH0.054 (inch)
表面贴装：YESBase Number Matches：1

RO2104A 数据手册

 浏览型号RO2104A的Datasheet PDF文件第2页 
®
RO2104A  
•
•
•
Ideal for 303.825 MHz Transmitters  
Very Low Series Resistance  
Quartz Stability  
Surface-Mount, Ceramic Case with 21 mm2 Footprint  
303.825 MHz  
SAW  
•
•
Complies with Directive 2002/95/EC (RoHS)  
Resonator  
The RO2104A 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 operat-  
ing at 303.825 MHz. This SAW is designed specifically for AM transmitters in wireless security and remote  
control applications operating in the USA under FCC Part 15, in Australia, in Japan, and in Korea.  
Absolute Maximum Ratings  
Rating  
Value  
+5  
Units  
dBm  
VDC  
°C  
CW RF Power Dissipation (See Typical Test Circuit)  
DC Voltage Between Terminals (Observe ESD Precautions)  
Case Temperature  
±30  
-40 to +85  
260  
SM-2 Case  
Soldering Temperature (10 seconds / 5 cycles max.)  
°C  
Electrical Characteristics  
Characteristic  
Sym  
Notes  
Minimum  
Typical  
Maximum  
Units  
f
Frequency (+25 °C)  
Nominal Frequency  
303.725  
303.925  
MHz  
C
2, 3, 4, 5  
Df  
Tolerance from 303.825 MHz  
±100  
2.0  
kHz  
dB  
C
Insertion Loss  
Quality Factor  
IL  
2, 5, 6  
5, 6, 7  
1.1  
17,800  
2,100  
25  
Q
Unloaded Q  
U
Q
T
50 W Loaded Q  
L
Temperature Stability  
Turnover Temperature  
Turnover Frequency  
10  
1.0  
2.0  
40  
°C  
O
f
f
6, 7, 8  
O
C
2
Frequency Temperature Coefficient  
Absolute Value during the First Year  
FTC  
0.032  
10  
ppm/°C  
|f |  
Frequency Aging  
1, 6  
5
ppm/yr  
MW  
W
A
DC Insulation Resistance between Any Two Terminals  
R
RF Equivalent RLC Model  
Motional Resistance  
14  
127.021  
2.16032  
2.3  
26  
M
5, 6, 7,  
9,  
L
Motional Inductance  
µH  
M
C
Motional Capacitance  
Transducer Static Capacitance  
fF  
M
C
5, 6, 9  
2, 7  
2.6  
pF  
O
L
Test Fixture Shunt Inductance  
Lid Symbolization  
120  
nH  
TEST  
112  
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.  
Notes:  
1.  
2.  
Frequency aging is the change in fC with time and is specified at +65°C or less.  
8.  
Turnover temperature, TO, is the temperature of maximum (or turnover) fre-  
quency, fO. The nominal frequency at any case temperature, TC, may be calcu-  
lated from: f = fO [1 - FTC (TO -TC)2]. Typically oscillator TO is approximately  
equal to the specified resonator TO.  
This equivalent RLC model approximates resonator performance near the reso-  
nant 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 para-  
sitic capacitance with "NC” pads unconnected. Case parasitic capacitance is  
approximately 0.05 pF. Transducer parallel capacitance can by calculated as:  
Aging may exceed the specification for prolonged temperatures above +65°C.  
Typically, aging is greatest the first year after manufacture, decreasing in subse-  
quent years.  
The center frequency, fC, is measured at the minimum insertion loss point,  
9.  
ILMIN, with the resonator in the 50 W test system (VSWR £ 1.2:1). The shunt  
inductance, LTEST, is tuned for parallel resonance with CO at fC. Typically, fOS-  
CILLATOR or fTRANSMITTER is approximately equal to the resonator fC.  
One or more of the following United States patents apply: 4,454,488 and  
4,616,197.  
Typically, equipment utilizing this device requires emissions testing and govern-  
ment approval, which is the responsibility of the equipment manufacturer.  
Unless noted otherwise, case temperature TC = +25°C±2°C.  
The design, manufacturing process, and specifications of this device are subject  
to change without notice.  
3.  
4.  
C
P » CO - 0.05 pF.  
5.  
6.  
7.  
Derived mathematically from one or more of the following directly measured  
parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO.  
RF Monolithics, Inc.  
RFM Europe  
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  
RO2104A-061901  
Page 1 of 2  
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.  
12

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