Download datasheet for RO3156E by RF Monolithics, Inc.

Download datasheet for RO3156E by RF Monolithics, Inc.
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Ideal for European 868.95 MHz Transmitters
Very Low Series Resistance
Quartz Stability
Complies with Directive 2002/95/EC (RoHS)
RO3156E
RO3156E-1
RO3156E-2
Pb
The RO3156E 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 fixed-frequency transmitters
operating at 868.95 MHz.This SAW is designed specifically for remote-control and wireless security
transmitters operating under ETSI EN 300 220.
Absolute Maximum Ratings
Rating
Value
Units
0
dBm
Input Power Level
DC Voltage
12
VDC
Storage Temperature
-40 to +125
°C
Operating Temperature Range
-40 to +125
°C
+260
°C
Soldering Temperature, 10 seconds / 5 cycles maximum
868.950 MHz
SAW
Resonator
SM3030-6 Case
3.0 X 3.0
Electrical Characteristics
Characteristic
Sym
Frequency, +25 °C
RO3156E
RO3156E-1
RO3156E-2
RO3156E
RO3156E-1
RO3156E-2
Tolerance from 868.95 MHz
Insertion Loss
Quality Factor
Temperature Stability
Unloaded Q
50 Ω Loaded Q
Turnover Temperature
Turnover Frequency
Frequency Temperature Coefficient
Frequency Aging
Absolute Value during the First Year
DC Insulation Resistance between Any Two Terminals
RF Equivalent RLC Model
Motional Resistance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
Test Fixture Shunt Inductance
Lid Symbolization (in addition to Lot and/or Date Codes)
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
Notes
fC
2,3,4,5
Minimum
Typical
868.750
868.800
868.850
∆fC
IL
QU
QL
TO
fO
2,5,6
5,6,7
10
6,7,8
1.2
6700
800
25
fC
Maximum
869.150
869.100
869.050
±200
±150
±100
2.0
40
Units
MHz
kHz
dB
°C
kHz
ppm/°C 2
1
ppm/yr
5
1.0
MΩ
RM
14.1
Ω
LM
17.2
µH
5, 6, 7, 9
CM
2.0
fF
CO
5, 6, 9
2.3
pF
LTEST
2, 7
14.6
nH
RO3156E: 707, RO3156E-1: 708, RO3156E-2: 926 // YWWS
500 Pieces / Reel
10
3000 Pieces / Reel
FTC
|fA|
0.032
<±10
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
4.
5.
6.
Frequency aging is the change in fC with time and is specified at +65°C or less.
Aging may exceed the specification for prolonged temperatures above +65°C.
Typically, aging is greatest the first year after manufacture, decreasing in subsequent 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,
fOSCILLATOR or fTRANSMITTER is approximately equal to the resonator fC.
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 TC = +25°C±2°C.
The design, manufacturing process, and specifications of this device are subject
to change without notice.
www.RFM.com E-mail: [email protected]
©2009 by RF Monolithics, Inc.
7.
8.
9.
10.
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.
Tape and Reel Standard for ANSI / EIA 481.
Page 1 of 2
RO3156E - 7/30/09
Power Test
Electrical Connections
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.
B
Pin
Connection
1
NC
2
Terminal
3
NC
4
NC
5
Terminal
6
NC
G
C
1
6
A 2
5
P INCIDENT
Low-Loss
Matching
Network to
50 Ω
50 Ω Source
at F C
P REFLECTED
1
6
F
3
5
4
Typical Application Circuits
H
6
1
5
2
Typical Low-Power Transmitter Application
200k Ω
E
2
I
+9VDC
Modulation
Input
C1
47
L1
(Antenna)
4
3
3
4
1
D
J
6
2
3
5
4
C2
ROXXXXC
Bottom View
RF Bypass
470
Typical Local Oscillator Application
Case Dimensions
Dimension
A
B
C
D
E
F
G
H
I
J
Output
200k Ω
Min
mm
Nom
Max
Min
Inches
Nom
Max
2.87
2.87
1.12
0.77
2.67
1.47
0.72
1.37
0.47
1.17
3.0
3.0
1.25
0.90
2.80
1.6
0.85
1.5
0.60
1.30
3.13
3.13
1.38
1.03
2.93
1.73
0.98
1.63
0.73
1.43
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
+VDC
C1
+VDC
L1
1
6
2
3
5
4
C2
ROXXXXC
Bottom View
RF Bypass
Equivalent LC Model
0.05 pF*
Typical Test Circuit
Co = Cp + 0.05 pF
Cp
The test circuit inductor, LTEST, is tuned to resonate with the static
capacitance, CO, at FC.
Rm
Electrical Test
Lm
*Case Parasitics
Cm
Temperature Characteristics
The curve shown on the right accounts for resonator contribution only and
does not include LC component temperature contributions.
fC = f O , T C = T O
0
6
From 50 Ω
Network Analyzer
5
2
4
3
To 50 Ω
Network Analyzer
0
-50
-50
-100
-100
-150
-150
(f-fo ) / fo (ppm)
1
-200
-80 -60 -40 -20
-200
0 +20 +40 +60 +80
∆T = T C - T O ( °C )
www.RFM.com E-mail: [email protected]
©2009 by RF Monolithics, Inc.
Page 2 of 2
RO3156E - 7/30/09
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