RO3144E-2 [MURATA]
1-PORT SAW RESONATOR, 916.5 MHz, ROHS COMPLIANT, CERAMIC, CASE SM3030-6;
| 型号： | RO3144E-2 |
| 厂家： | 
muRata |
| 描述： | 1-PORT SAW RESONATOR, 916.5 MHz, ROHS COMPLIANT, CERAMIC, CASE SM3030-6 晶体 谐振器 |
| 文件： | 总2页 (文件大小：90K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RO3144E
RO3144E-1
RO3144E-2
• Ideal for 916.5 MHz FCC Part 15 Transmitters
• Very Low Series Resistance
• Quartz Stability
• Complies with Directive 2002/95/EC (RoHS)
916.5 MHz
SAW
Resonator
Pb
The RO3144E 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
Units
Input Power Level
0
dBm
DC Voltage
12
VDC
°C
Storage Temperature
Operating Temperature Range
Soldering Temperature
-40 to +125
-40 to +125
260
°C
SM3030-6 Case
3.0 X 3.0
°C
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Frequency (+25 °C) Nominal Frequency
RO3144E
RO3144E-1
RO3144E-2
RO3144E
916.300
916.700
f
916.350
916.400
916.650
916.600
±200
MHz
C
2, 3, 4, 5
Tolerance from 916.5 MHz
Insertion Loss
Δf
RO3144E-1
RO3144E-2
±150
kHz
dB
C
±100
IL
2, 5, 6
5, 6, 7
1.2
6400
780
25
1.6
Quality Factor
Unloaded Q
Q
U
50 Ω Loaded Q
Turnover Temperature
Q
L
Temperature Stability
T
15
40
°C
O
Turnover Frequency
f
6, 7, 8
fc
MHz
O
2
Frequency Temperature Coefficient
Absolute Value during the First Year
FTC
|fA|
0.032
10
ppm/°C
ppm
Frequency Aging
1
5
DC Insulation Resistance between Any Two Terminals
1.0
MΩ
Ω
µH
fF
RF Equivalent RLC Model
Motional Resistance
R
14
15.4
1.9
1.9
16
M
Motional Inductance
L
5, 6, 7, 9
M
Motional Capacitance
Transducer Static Capacitance
C
C
M
5, 6, 9
2, 7
pF
nH
O
Test Fixture Shunt Inductance
Lid Symbolization
L
TEST
RO3144E 693, RO3144E-1 769, RO3144E-2 770 / YWWS
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
500 Pieces / Reel
10
3000 Pieces / Reel
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.
7.
8.
Derived mathematically from one or more of the following directly measured
parameters: fC, IL, 3 dB bandwidth, fC versus TC, and CO.
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 TO is
approximately equal to the specified resonator TO.
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 - 0.05 pF.
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, 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,
9.
fOSCILLATOR or fTRANSMITTER is approximately equal to the resonator fC.
3.
4.
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.
5.
6.
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.
10. Tape and Reel Standard for ANSI / EIA 481.
www.RFM.com
E-mail: info@rfm.com
Page 1 of 2
©2008 by RF Monolithics, Inc.
RO3144E - 3/27/08
Power Test
Electrical Connections
Pin
Connection
The SAW resonator is bidirectional and
may be installed with either orientation.
The two terminals are interchangeable
and unnumbered. The callout NC
indicates no internal connection. The NC
pads assist with mechanical positioning
and stability. External grounding of the NC
pads is recommended to help reduce
parasitic capacitance in the circuit.
1
2
3
4
5
6
NC
PINCIDENT
Terminal
NC
Low-Loss
Matching
Network to
50 Source
Ω
2
5
3
4
1
at FC
NC
6
PREFLECTED
50
Ω
Terminal
NC
Typical Application Circuits
B
C
G
H
Typical Low-Power Transmitter Application
1
2
3
6
5
4
6
5
4
1
2
3
200k
Ω
+9VDC
Modulation
Input
C1
47
A
E
F
I
L1
(Antenna)
2
5
3
4
1
6
D
J
C2
Bottom View
RF Bypass
470
Typical Local Oscillator Application
Output
Case Dimensions
Dimension
200k
Ω
+VDC
C1
+VDC
mm
Nom
3.0
Inches
Nom
L1
Min
Max
3.13
3.13
1.38
1.03
2.93
1.73
0.98
1.63
0.73
1.43
Min
Max
A
B
C
D
E
F
G
H
I
2.87
2.87
1.12
0.77
2.67
1.47
0.72
1.37
0.47
1.17
0.113
0.113
0.044
0.030
0.105
0.058
0.028
0.054
0.019
0.046
0.118
0.118
0.049
0.035
0.110
0.063
0.033
0.059
0.024
0.051
0.123
0.123
0.054
0.040
0.115
0.068
0.038
0.064
0.029
0.056
2
5
3
1
3.0
6
4
1.25
0.90
2.80
1.6
C2
Bottom View
RF Bypass
0.85
1.5
Equivalent LC Model
0.60
1.30
0.05 pF*
J
+
C
p
=
C
o
0.05 pF
Typical Test Circuit
The test circuit inductor, L
C
p
, is tuned to resonate with the static
*Case Parasitics
TEST
capacitance, C , at F .
O
C
Lm
C m
Rm
Electrical Test
Temperature Characteristics
The curve shown on the right accounts for resonator contribution only and
does not include LC component temperature contributions.
fC = fO , TC = TO
0
0
6
5
4
1
-50
-50
From 50
Ω
To 50
Ω
Network Analyzer
2
Network Analyzer
-100
-150
-100
-150
-200
3
-200
-80 -60 -40 -20
0
+40 +60 +80
+20
T = T - T ( °C )
Δ
C
O
www.RFM.com
©2008 by RF Monolithics, Inc.
E-mail: info@rfm.com
Page 2 of 2
RO3144E - 3/27/08
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