RP1295
•
•
•
Ideal for 423.07 MHz Local Oscillators
Typically used in 433.92 MHz FCC Part 15 Superhet Receivers
Rugged, Hermetic, Low-Profile TO39 Case
423.27 MHz
SAW
Resonator
The RP1298 is a two-port, 180° surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It pro-
vides reliable, fundamental-mode, quartz frequency stabilization of local oscillators operating at approxi-
mately 423.22 MHz. The RP1298 is designed for 433.92 MHz superhet receivers in remote-control and
wireless security applications operating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17
TR 2100.
Absolute Maximum Ratings
Rating
Value
+6
Units
dBm
VDC
°C
CW RF Power Dissipation (See: Typical Test Circuit)
DC Voltage Between Any Two Pins (Observe ESD Precautions)
Case Temperature
±30
TO39-3 Case
-40 to +85
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency
f
Absolute Frequency
423.170
423.370
MHz
kHz
dB
C
2, 3, 4, 5,
Df
Tolerance from 423.220 MHz
±100
7.5
C
Insertion Loss
Quality Factor
IL
2, 5, 6
5, 6, 7
5.0
14,000
6,000
42
Q
Unloaded Q
U
Q
50 W Loaded Q
L
T
Temperature Stability
Turnover Temperature
Turnover Frequency
Frequency Temp. Coefficient
Absolute Value during First Year
27
1.0
2.2
57
°C
O
f
f +0.005
6, 7, 8
kHz
O
C
2
FTC
0.032
ppm/°C
|f |
Frequency Aging
6
5
±10
137
ppm/yr
MW
W
A
DC Insulation Resistance between Any Two Pins
RF Equivalent RLC
R
Motional Resistance
Motional Inductance
Motional Capacitance
Shunt Static Capacitance
78
409.7
0.3451
2.5
M
L
5, 7, 9
5, 6, 9
µH
M
C
fF
M
C
2.8
pF
O
Lid Symbolization (in addition to Lot and/or Date Codes)
RFM P1298
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Frequency aging is the change in f with time and is specified at +65°C or less. Aging may exceed the specification for prolonged temperatures
C
above +65°C. Typically, aging is greatest the first year after manufacture, decreasing significantly in subsequent years.
2. The frequency f is the frequency of minimum IL with the resonator in the specified test fixture in a 50 W test system with VSWR £ 1.2:1. Typically,
C
f
or f
is less than the resonator f .
TRANSMITTER C
OSCILLATOR
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 manufac-
turer.
5. Unless noted otherwise, case temperature T = +25°C± 5°C
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: f , IL, 3 dB bandwidth, f versus T , and C .
C
C
C
O
8. Turnover temperature, T , is the temperature of maximum (or turnover) frequency, f . The nominal frequency at any case temperature, T , may be
O
O
C
2
calculated from: f = f [1 - FTC (T - T ) ]. Typically, oscillator T is 20° less than the specified resonator T .
O
O
C
O
O
9. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for reference only. The capacitance
is the measured static (nonmotional) capacitance between either pin 1 and ground or pin 2 and ground. The measurement includes case parasitic
C
O
capacitance.
RF Monolithics, Inc.
RFM Europe
Phone: (972) 233-2903
Phone: 44 1963 251383
Fax: (972) 387-9148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
RP1295-011300
Page 1 of 2
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
5秒后页面跳转
英伟达新AI芯片Rubin或提前半年亮相
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
三星深化印度制造布局，供应链本地化进程加速
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
