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參數資料
| 型號： | RO2144E |
| 廠商： | RF Monolithics, Inc. |
| 英文描述： | 916.5 MHz SAW Resonator |
| 中文描述： | 916.5兆赫聲表面波諧振器 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 97K |
| 代理商： | RO2144E |
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
RO2144E_RO2144E-1_RO2144E-2_042505
Page 1 of 2
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
916.300
916.350
916.405
Typical
Maximum
916.700
916.650
916.595
±200
±150
±95
1.6
Units
Frequency (+25 °C) Nominal Frequency RO2144E
f
C
2, 3, 4, 5
MHz
RO2144E-1
RO2144E-2
RO2144E
RO2144E-1
RO2144E-2
Tolerance from 916.5 MHz
f
C
kHz
Insertion Loss
Quality Factor
IL
Q
U
Q
L
T
O
f
O
FTC
|fA|
2, 5, 6
1.2
8900
TBD
25
fc
0.032
10
dB
Unloaded Q
50
Loaded Q
Turnover Temperature
Turnover Frequency
Frequency Temperature Coefficient
Absolute Value during the First Year
5, 6, 7
8000
Temperature Stability
6, 7, 8
15
35
°C
MHz
ppm/°C
2
ppm
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
Transducer Static Capacitance
R
M
L
M
C
M
C
P
L
TEST
5, 6, 7, 9
12
19.8
1.7
1.9
TBD
17
5, 6, 9
2, 7
Test Fixture Shunt Inductance
Lid Symbolization
Standard Reel Quantity
515 // YWWS
Reel Size 7 Inch
Reel Size 13 Inch
10
500 Pieces / Reel
3000 Pieces / Reel
Ideal for 916.5 MHz FCC Part 15 Transmitters
Very Low Series Resistance
Quartz Stability
Complies with Directive 2002/95/EC (RoHS)
The RO2144E is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic case.
It provides reliable, fundamental-mode stabilization of fixed-frequency transmitters operating at 916.5 MHz.
This SAW is designed specifically for remote-control and data-link transmitters operating in the USA under
FCC Part 15 regulations.
Absolute Maximum Ratings
Rating
Value
10
12
-40 to +125
-40 to +125
Units
dBm
VDC
°C
°C
Input Power Level
DC Voltage
Storage Temperature
Operating Temperature Range
916.5 MHz
SAW
Resonator
RO2144E
RO2144E-1
RO2144E-2
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 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
versus T
, and C
.
Turnover temperature, T
O
, is the temperature of maximum (or turnover) frequency, f
O
. The
nominal frequency at any case temperature, T
C
, may be calculated from: f = f
O
[1 - FTC (T
O
-
T
)
2
]. Typically
oscillator
T
is approximately equal to the specified
resonator
T
.
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.
Tape and Reel Standard for ANSI / EIA 481.
8.
9.
10.
SM3030-6 Case
3.0 X 3.0
Pb
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