ETC RP1308

RP1308
433.92 MHz
•
•
•
•
SAW Resonator
Ideal for 433.92 MHz Low-Power Transmitters
Nominal Insertion Phase Shift of 180° at Resonance
Quartz Stability
Rugged, Hermetic, Low-Profile TO39 Case
The RP1308 is a two-port, 180° surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It provides reliable, fundamental-mode, quartz frequency stabilization
of AM, FSK, or PSK transmitters operating at 433.92 MHz. The RP1308 was
designed specifically for remote-control and wireless security transmitters operating in
Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR 2100.
TO39-3 Case
Electrical Characteristics
Characteristic
Center Frequency (+25°C)
Sym
fC
Absolute Frequency
Tolerance from 433.920 MHz
∆fC
2, 3, 4, 5,
2, 5, 6
Unloaded Q
IL
QU
50 Ω Loaded Q
QL
Turnover Temperature
TO
Turnover Frequency
fO
Insertion Loss
Quality Factor
Temperature Stability
Frequency Temp. Coefficient
Frequency Aging
Absolute Value during First Year
FTC
|fA|
DC Insulation Resistance between Any Two Pins
RF Equivalent RLC Model
Notes
Minimum
433.845
Motional Inductance
LM
Motional Capacitance
CM
Shunt Static Capacitance
CO
Lid Symbolization (in addition to Lot and/or Date Codes)
Units
433.995
MHz
±75
kHz
8.0
dB
66
°C
12,000
5, 6, 7
6,300
36
6, 7, 8
6
5
Maximum
6.3
51
fC+11
kHz
0.037
ppm/°C2
≤ 10
ppm/yr
1.0
RM
Motional Resistance
Typical
MΩ
107
5, 7, 9
152
µH
481.378
fF
0.279470
5, 6, 9
1.4
1.7
Ω
2.0
pF
RFM P1308
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. 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.
2. The frequency f C is the frequency of minimum IL with the resonator in the specified test fixture in a 50 Ω test system with VSWR ≤ 1.2:1. Typically,
fOSCILLATOR or fTRANSMITTER is less than the resonator fC.
3. One or more of the following United States patents apply: 4,454,488; 4,616,197.
4. Typically, equipment utilizing this device requires emissions testing and government approval, which is the responsibility of the equipment manufacturer.
5. Unless noted otherwise, case temperature TC = +25°C± 2°C
6. The design, manufacturing process, and specifications of this device are subject to change without notice.
7. Derived mathematically from one or more of the following directly measured parameters: fC , IL, 3 dB bandwidth, fC versus TC, and CO.
8. 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 20° less than the specified resonator TO.
9. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance
CO is the measured static (nonmotional) capacitance between either pin 1 and ground or pin 2 and ground. The measurement includes case parasitic capacitance.
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
©1998 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [email protected]
http://www.rfm.com
RP1308-120298
Page 1 of 2
433.92 MHz SAW Resonator
Absolute Maximum Ratings
Rating
Value
Units
+0
dBm
±30
VDC
-40 to +85
°C
CW RF Power Dissipation (See: Typical Test Circuit)
DC Voltage Between Any Two Pins (Observe ESD Precautions)
Case Temperature
Electrical Connections
This two-port, three-terminal SAW resonator is bidirectional. However,
impedances and circuit board parasitics may not be symmetrical, requiring
slightly different oscillator component-matching values.
Equivalent LC Model
The following equivalent LC model is valid near resonance:
2
1
LM
R
Bottom View
Connection
1
2
3
C
M
M
Co
Co
Pin 1
Input or Output
Output or Input
Case Ground
3
Pin 2
Temperature Characteristics
Pin 3
fC = f O , TC = T O
Typical Test Circuit
Power Test
Electrical Test
0
The curve shown on the right
accounts for resonator contribution only and does not
include LC component temperature contributions.
(f-fo ) / fo (ppm)
Pin
0
-50
-50
-100
-100
-150
-150
-200
-80 -60 -40 -20
-200
0 +20 +40 +60 +80
∆T = TC - TO ( °C )
2
1
50 Ω
Source at P
REFLECTED
F
C
Low-Loss
Matching
Network
to 50 Ω
From 50Ω
Network
Analyzer
1
2
To 50Ω
Network
Analyzer
3
3
Typical Frequency Response
The plot shown below is a typical frequency response for
the RP series of two-port resonators. The plot is for RP1094.
- P
CW RF Power Dissipation = P
REFLECTED
INCIDENT
200.0
-10.0
100.0
Typical Application Circuits
-20.0
Conventional Two-Port Design:
0.0
-100.0
S21 magn.(dB)
This SAW resonator can be used in oscillator or transmitter designs that
require 180° phase shift at resonance in a two-port configuration. Oneport resonators can be simulated, as shown, by connecting pins 1 and 2
together. However, for most low-cost consumer products, this is only
recommended for retrofit applications and not for new designs.
-30.0
-200.0
-300.0
-40.0
-400.0
S21 phase (deg.)
P
INCIDENT
-500.0
Simulated One-Port Design:
-50.0
-600.0
-700.0
-60.0
1
Phasing
Phasing
& Match
& Match
2
901.2
-800.0
905.2
909.2
913.2
917.2
921.2
925.2
929.2
Frequency (MHz)
3
Millimeters
Inches
Dimensions
Min
Case Design
C
G
B
A
9.30
B
3.18
C
H
F
E
A
D
(3 places)
2.50
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
©1998 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
Max
0.366
0.125
0.098
0.138
0.46 Nominal
0.018 Nominal
E
5.08 Nominal
0.200 Nominal
F
2.54 Nominal
0.100 Nominal
G
2.54 Nominal
0.100 Nominal
J
45°
3.50
Min
D
H
J
(2 places)
Max
1.02
1.40
0.040
0.055
E-mail: [email protected]
http://www.rfm.com
RP1308-120298
Page 2 of 2