参数资料
型号: RO3101A-21
厂商: RF MONOLITHICS INC
元件分类: SAW谐振器
英文描述: 1-PORT SAW RESONATOR, 433.92 MHz
封装: ROHS COMPLIANT, CERAMIC, CASE SM5035-4
文件页数: 1/2页
文件大小: 66K
代理商: RO3101A-21
www.RFM.com
E-mail: info@rfm.com
Page 1 of 2
2008 by RF Monolithics, Inc.
RO3101A-21 - 4/25/08
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency (+25 °C)
Absolute Frequency
fC
2,3,4,5
433.845
433.995
MHz
Tolerance from 433.920 MHz
Δf
C
±75
kHz
Insertion Loss
IL
2,5,6
1.5
2.2
dB
Quality Factor
Unloaded Q
QU
5,6,7
14200
50
Ω Loaded Q
QL
2200
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
Ω
RF Equivalent RLC Model
Motional Resistance
RM
5, 7, 9
18.46
Ω
Motional Inductance
LM
96.6
H
Motional Capacitance
CM
1.39
fF
Shunt Static Capacitance
CO
5, 6, 9
1.82
pF
Test Fixture Shunt Inductance
LTEST
2, 7
74.1
nH
Lid Symbolization (in addition to Lot and/or Date Codes)
807 // YWWS
Ideal for European 433.92 MHz Transmitters
Very Low Series Resistance
Quartz Stability
Surface-Mount Ceramic Case
Complies with Directive 2002/95/EC (RoHS)
The RO3101A-21 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 433.92 MHz. This SAW is designed specifically for remote-control and wireless security
transmitters operating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR 2100.
Absolute Maximum Ratings
Rating
Value
Units
CW RF Power Dissipation (See: Typical Test Circuit)
+0
dBm
DC voltage Between Terminals (Observe ESD Precautions)
±30
VDC
Case Temperature
-40 to +85
°C
Soldering Temperature (10 seconds / 5 cycles max.)
260
°C
433.92 MHz
SAW
Resonator
RO3101A-21
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
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 in subsequent years.
2.
The center frequency, fC, is measured at the minimum insertion loss point,
ILMIN, with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The
shunt inductance, LTEST, is tuned for parallel resonance with CO at fC.
Typically, fOSCILLATOR or fTRANSMITTER is approximately equal to the
resonator 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
government approval, which is the responsibility of the equipment
manufacturer.
5.
Unless noted otherwise, case temperature TC = +25°C±2°C.
6.
The design, manufacturing process, and specifications of this device are
subject 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)
frequency, fO. The nominal frequency at any case temperature, TC, may be
calculated from: f = fO [1 - FTC (TO -TC)
2]. Typically oscillator T
O is
approximately equal to the specified resonator TO.
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 0.05 pF. Transducer parallel
capacitance can by calculated as: CP ≈ CO -0.05pF.
10.
Tape and Reel standard per ANSI / EIA 481.
SM5035-4
Pb
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