RO3134A [MURATA]
1-PORT SAW RESONATOR, 372.5 MHz, ROHS COMPLIANT, CERAMIC, CASE SM5035-4;
| 型号： | RO3134A |
| 厂家： | 
muRata |
| 描述： | 1-PORT SAW RESONATOR, 372.5 MHz, ROHS COMPLIANT, CERAMIC, CASE SM5035-4 晶体 谐振器 |
| 文件： | 总2页 (文件大小：66K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RO3134A
• Very Low Series Resistance
• Quartz Stability
• Surface-Mount, Ceramic Case with 21 mm2 Footprint
• Complies with Directive 2002/95/EC (RoHS)
372.5 MHz
SAW
Pb
The RO3134A 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
approximately 372.5 MHz.
Resonator
Absolute Maximum Ratings
Rating
Value
+10
Units
dBm
VDC
°C
CW RF Power Dissipation (See Typical Test Circuit)
DC Voltage Between Terminals (Observe ESD Precautions)
Case Temperature
±30
-40 to +85
260
Soldering Temperature (10 seconds / 5 cycles maximum)
°C
SM5035-4
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
f
Frequency (+25 °C)
Nominal Frequency
372.400
372.600
MHz
kHz
dB
C
2, 3, 4, 5
∆f
Tolerance from 372.500 MHz
±100
2.2
C
Insertion Loss
Quality Factor
IL
2, 5, 6
5, 6, 7
1.0
15,400
1,700
25
Q
Unloaded Q
U
Q
T
50 Ω Loaded Q
L
Temperature Stability
Turnover Temperature
Turnover Frequency
10
40
°C
O
f
f
6, 7, 8
O
C
2
Frequency Temperature Coefficient
Absolute Value during the First Year
FTC
0.032
10
ppm/°C
|f |
Frequency Aging
1, 6
5
ppm/yr
MΩ
Ω
A
DC Insulation Resistance between Any Two Terminals
1.0
R
RF Equivalent RLC Model
Motional Resistance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
12.7
83
M
L
5, 6, 7, 9
µH
M
C
2.2
2.4
76
fF
M
C
5, 6, 9
2, 7
pF
O
L
Test Fixture Shunt Inductance
Lid Symbolization
nH
TEST
836//YYWWSR
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Frequency aging is the change in f with time and is specified at
are subject to change without notice.
C
7. Derived mathematically from one or more of the following directly
measured parameters: f , IL, 3 dB bandwidth, f versus T , and C .
+65°C or less. Aging may exceed the specification for prolonged tem-
peratures above +65°C. Typically, aging is greatest the first year after
manufacture, decreasing in subsequent years.
C
C
C
O
8. Turnover temperature, T , is the temperature of maximum (or
O
2. The center frequency, f , is measured at the minimum insertion loss
C
turnover) frequency, f . The nominal frequency at any case
O
point, IL , with the resonator in the 50 Ω test system (VSWR ≤
MIN
2
temperature, T , may be calculated from: f = f [1 - FTC (T -T ) ].
C
O
O
C
1.2:1). The shunt inductance, L
, is tuned for parallel resonance
TEST
Typically oscillator T is approximately equal to the specified
O
with C at f . Typically, f
or f
is approximately
O
C
OSCILLATOR
TRANSMITTER
resonator T .
O
equal to the resonator f .
C
9. This equivalent RLC model approximates resonator performance near
the resonant frequency and is provided for reference only. The
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.
capacitance C is the static (nonmotional) capacitance between the
O
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:
5. Unless noted otherwise, case temperature T = +25°C±2°C.
C
6. The design, manufacturing process, and specifications of this device
C
≈ C - 0.05 pF.
P
O
www.RFM.com E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
Page 1 of 2
RO3134A - 12/4/08
Electrical Connections
Equivalent LC Model
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
0.05 pF*
Terminal
+
C
p
=
C
o
0.05 pF
C
p
*Case Parasitics
Terminal
Lm
C m
Rm
recommended to help reduce parasitic
capacitance in the circuit.
Temperature Characteristics
The curve shown on the right
accounts for resonator
Typical Test Circuit
fC = fO , TC = TO
0
0
The test circuit inductor, L
, is tuned to resonate with the static
TEST
-50
contribution only and does not
include LC component
temperature contributions.
-50
capacitance, C , at F .
O
C
-100
-150
-100
-150
-200
-200
-80 -60 -40 -20
ELECTRICAL TEST
0
+40 +60 +80
+20
Typical Circuit Board
Land Pattern
The circuit board land pattern
T = TC - TO ( °C )
∆
Ω
Ω
To 50
Network Analyzer
From 50
Network Analyzer
shown below is one possible design. The optimum land pattern is
dependent on the circuit board assembly process which varies by
manufacturer. The distance between adjacent land edges should be at a
maximum to minimize parasitic capacitance. Trace lengths from terminal
lands to other components should be short and wide to minimize parasitic
series inductances.
POWER TEST
(4 Places)
P
INCIDENT
Terminal
NC
Terminal
Low-Loss
Matching
Network to
Typical Dimension:
0.010 to 0.047 inch
(0.25 to 1.20 mm)
Ω
at FC
50 Source
NC
P
REFLECTED
Ω
50
Case Design
P
P
INCIDENT - REFLECTED
CW RF Power Dissipation =
Top View
Side View
Bottom View
B
C
E (3x)
F (4x)
Typical Application Circuits
Typical Low-Power Transmitter Application
+9VDC
4
Ω
200k
Modulation
Input
47
C1
C2
3
1
L1
(Antenna)
2
G (1x
RF Bypass
RO3XXXA
Bottom View
D
470
Millimeters
Inches
Nom
Dimension
Typical Local Oscillator Applications
s
Min
Nom
Max
Min
Max
Output
A
B
C
D
E
F
4.87
3.37
1.45
1.35
.67
5.0
3.5
5.13
3.63
1.60
1.50
.93
.191
.132
.057
.040
.026
.014
.042
.196
.137
.060
.057
.031
.019
.047
.201
.142
.062
.059
.036
.024
.052
+VDC
C1
+VDC
1.53
1.43
.80
L1
C2
.37
.50
.63
G
1.07
1.20
1.33
RO3XXXA
Bottom View
RF Bypass
www.RFM.com E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
Page 2 of 2
RO3134A - 12/4/08
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