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參數資料
| 型號： | RO2113A |
| 廠商： | RF Monolithics, Inc. |
| 英文描述： | 314.5 MHz SAW Resonator |
| 中文描述： | 314.5兆赫聲表面波諧振器 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 100K |
| 代理商： | RO2113A |
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
RO2113A-041603
Page 1 of 2
Electrical Characteristics
Characteristic
Absolute Frequency
Tolerance from 314.500 MHz
Sym
f
C
f
C
IL
Q
U
Q
L
T
O
f
O
FTC
|fA|
Notes
Minimum
314.425
Typical
Maximum
314.575
±75
1.5
Units
MHz
kHz
dB
Center Frequency at +25 °C
2, 3, 4, 5
Insertion Loss
Quality Factor
2, 5, 6
0.8
Unloaded Q
50
Loaded Q
Turnover Temperature
Turnover Frequency
Frequency Temperature Coefficient
Absolute Value during the First Year
5, 6, 7
18,200
1,500
25
f
C
0.032
≤
10
Temperature Stability
6, 7, 8
10
40
°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, 6, 9
10
19
80.9315
3.17441
3.0
90
103
5, 6, 9
2, 7
2.7
3.3
Test Fixture Shunt Inductance
Lid Symbolization
Ideal for 315 MHz Superhet Receiver LOs
Very Low Series Resistance
Quartz Stability
Surface-Mount Ceramic Case with 21 mm
2
Footprint
Complies with Directive 2002/95/EC (RoHS)
The RO2113A 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 oscillatiors operating at
314.5 MHz. This SAW is designed for 315 MHz superhet receivers with500 kHz IF (Philips UAA320IT).
Applications include automotive-keyless-entry receivers operating in the USA under FCC Part 15, in Canada
under DoC RSS-210, and in Italy.
Absolute Maximum Ratings
Rating
Value
+0
±30
-40 to +85
260
Units
dBm
VDC
°C
°C
CW RF Power Dissipation (See: Typical Test Circuit.)
DC Voltage Between Terminals (Observe ESD Precautions)
Case Temperature
Soldering Temperature (10 seconds / 5 cycles max.)
314.5 MHz
SAW
Resonator
RO2113A
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
Lifetime (10 year) frequency aging.
The center frequency, f
C
, is measured at the minimum insertion
loss point, IL
MIN
, with the resonator in the 50
test system (VSWR
≤
1.2:1). The shunt inductance, L
TEST
, is tuned for parallel reso-
nance with C
O
at 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 equip-
ment 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.
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
.
3.
4.
5.
6.
7.
8.
Turnover temperature, T
O
, is the temperature of maximum (or turn-
over) frequency, f
O
. The nominal frequency at any case tempera-
ture, T
C
, may be calculated from: f = f
O
[1 - FTC (T
O
-T
C
)
2
].
This equivalent RLC model approximates resonator performance
near the resonant frequency 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
capacitance meter. The measurement includes parasitic capaci-
tance 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.
9.
SM-2 Case
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