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| 型號(hào)： | RP1238 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁(yè)數(shù)： | 1/1頁(yè) |
| 文件大?。?/td> | 15K |
| 代理商： | RP1238 |
293.175 MHz
SAW
Resonator
RP1234
ELECTRICAL CHARACTERISTICS
Characteristic
Sym
f
c
f
c
IL
Q
U
Q
L
T
o
f
o
FTC
Notes
1
Minimum
293.075
38
1.0
1.0
Typical
13.1
12,000
9,400
53
f
c
+ 8.5
0.037
< ±
10
352
2.31659
0.127215
1.3
Maximum
293.275
±
100
18.0
68
695
1.6
Units
MHz
kHz
dB
Center Frequency (+25
°
C)
Absolute Frequency
Relative to 293.175 MHz
Insertion Loss
Quality Factor
1
2
Unloaded Q
50
Loaded Q
Turnover Temperature
Turnover Frequency
Freq. Temp. Coefficient
Temperature Stability
2, 3
°
C
kHz
ppm/
°
C
2
ppm/yr
M
mH
fF
pF
Frequency Aging
DC Insulation Resistance between any 2 pins
RF Equivalent RLC Model
4
2, 5
Motional Resistance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
R
m
L
m
C
m
C
o
5
Lid Symbolization (in addition to lot and/or date code)
RFM P1234
Notes:
(Unless noted otherwise, case temperature, T
c
= +25
°
C
±
2
°
C.)
1.
f
c
is the frequency of minimum IL with the resonator in a 50
test system with VSWR
≤
1.2:1. (Typically, f
OSCILLATOR <
f
c
)
2.
Derived mathematically from one or more of the following directly measured parameters: f
c
, IL, 3 dB bandwidth, f
c
vs. T
c
, and C
o
.
3.
Turnover temperature, T
o
, is the temperature of maximum (or turnover) frequency, f
o
. The nominal frequency at any case temperature, T
c
,
may be calculated from: f = f
o
[ 1 - FTC ( T
o
- T
c
)
]. (Note that oscillatorT
o
is typically 20
°
C less than specified resonatorT
o
.)
4.
Frequency aging is the change in f
c
with time and is specified at +65
°
C or less. Aging may exceed the specification for prolonged tempera-
tures above +65
°
C. Typically, aging is greatest the first year after manufacture, decreasing in subsequent years.
5.
This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. C
o
is the
measured static (nonmotional) capacitance between pin 1 and ground or pin 2 and ground and includes case parasitic capacitance.
6.
The design, manufacturing process, and specifications of this device are subject to change without notice.
7.
One or more of the following U. S. Patents apply: 4,454,488 and 4,616,197. RFM is a registered trademark of RF Monolithics, Inc.
8.
Equipment utilitizing this device typically requires emissions testing and government approval, which is the responsibility of the equipment
manufacturer.
9.
CAUTION: ELECTROSTATIC SENSITIVE DEVICE. Observe precautions for handling.
ABSOLUTE MAXIMUM RATINGS
Rating
Value
+10
±
30
-40 to +85
Units
dBm
VDC
°
C
CW RF Power Dissipation
DC Voltage between any 2 pins (See note 9)
Case Temperature
RP1234.CHP-A-01-121994AC
RPBACK.CHP
1994
RF Monolithics, Inc.
Designed for 303.825 MHz Low-Power Superhet Receivers
180
°
Nominal Insertion Phase at Resonance
Rugged, Hermetic, Low Profile TO-39 Case
The RP1234 is a 2-port surface acoustic wave resonator (SAWR) that provides
reliable quartz frequency stabilization of fixed frequency local oscillators at
293.125 MHz. (The nominal SAWR frequency is typically 50 kHz higher than the
nominal radio frequency.) Typical applications include wireless security and remote
control receivers operating in the USA (FCC Part 15), Australia, Japan and Korea.
TO39-3 Case
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