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參數資料
| 型號： | RO2165A-2 |
| 廠商： | RF Monolithics, Inc. |
| 英文描述： | 858.25 MHz SAW Resonator |
| 中文描述： | 858.25兆赫聲表面波諧振器 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 102K |
| 代理商： | RO2165A-2 |
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) 387-8148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
RO2165A_RO2165A-1_RO2165A-2_071001
Page 1 of 2
Soldering Temperature (10 seconds / 5 cycles max.)
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
858.175
858.175
858.150
Typical
Maximum
858.325
858.475
858.350
±75
+225
Units
Frequency (+25 °C) Nominal Frequency RO2165A
f
C
2, 3, 4, 5
MHz
RO2165A-1
RO2165A-2
Tolerance from 858.25 MHz RO2165A
f
C
kHz
RO2165A-1
RO2165A-2
-75
±100
1.1
38,997
4,000
30
f
C
0.032
10
Insertion Loss
Quality Factor
IL
Q
U
Q
L
T
O
f
O
FTC
|fA|
2, 5, 6
2.0
dB
Unloaded Q
50
Loaded Q
Turnover Temperature
Turnover Frequency
Frequency Temperature Coefficient
Absolute Value during the First Year
5, 6, 7
Temperature Stability
6, 7, 8
15
45
°C
ppm/°C
2
ppm/yr
M
μH
fF
pF
nH
Frequency Aging
DC Insulation Resistance between Any Two Terminals
RF Equivalent RLC Model
1
5
1.0
Motional Resistance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
R
M
L
M
C
M
C
O
L
TEST
5, 7, 9, 6
11
82.654
0.4161
2.9
11.8581
261
5, 6, 9
2, 7
2.6
3.2
Test Fixture Shunt Inductance
Lid Symbolization (in Addition to Lot and/ or Date Code)
Ideal for European 858.25 MHz Transmitters
Very Low Series Resistance
Quartz Stability
Surface-Mount Ceramic Case with 21 mm
2
Footprint
Complies with Directive 2002/95/EC (RoHS)
The RO2165A 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 local oscillators operating at 858.25
MHz. This SAW is designed for remote-control and wireless security receivers operating under ETSI-ETS
300 220 in Europe and under FTZ 17 TR 2100 in Germany
Absolute Maximum Ratings
Rating
Value
+0
±30
-40 to +85
260
Units
dBm
VDC
°C
°C
CW RF Power Dissipation
DC Voltage Between Terminals
Case Temperature
858.25 MHz
SAW
Resonator
RO2165A
RO2165A-1
RO2165A-2
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
SM-2 Case
1.
Frequency aging is the change in f
with time and is specified at +65°C or less. Aging may
exceed the specification for prolonged temperatures above +65°C. Typically, aging is great-
est the first year after manufacture, decreasing in subsequent years.
The center frequency, f
C
, is measured at the minimum insertion loss point, IL
MIN
, with the res-
onator in the 50
test system (VSWR
≤
1.2:1). The shunt inductance, L
TEST
, is tuned for par-
allel resonance with C
O
at f
C
. Typically, f
OSCILLATOR
or f
TRANSMITTER
is approximately equal
to the resonator f
C
.
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 government
approval, which is the responsibility of the equipment manufacturer.
Unless noted otherwise, case temperature T
C
= +25°C±2°C.
The design, manufacturing process, and specifications of this device are subject to change
without notice.
2.
3.
4.
5.
6.
7.
Derived mathematically from one or more of the following directly measured parameters: f
C
,
IL, 3 dB bandwidth, f
C
versus T
C
, and C
O
.
Turnover temperature, T
, is the temperature of maximum (or turnover) frequency, f
. The
nominal frequency at any case temperature, T
C
, may be calculated from: f = f
O
[1 - FTC (T
O
-
T
C
)
2
]. Typically
oscillator
T
O
is approximately equal to the specified
resonator
T
O
.
This equivalent RLC model approximates resonator performance near the resonant fre-
quency and is provided for reference only. The capacitance C
O
is the static (nonmotional)
capacitance between the two terminals measured at low frequency (10 MHz) with a capaci-
tance 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: C
P
≈
C
O
- 0.05 pF.
8.
9.
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