HR345 [HOPERF]
345MHz One-Port SAW Resonator; 345MHz的单口SAW谐振器
| 型号： | HR345 |
| 厂家： | 
HOPERF |
| 描述： | 345MHz One-Port SAW Resonator |
| 文件： | 总3页 (文件大小：120K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HR345
345MHz One-Port SAW Resonator
Approved by:
Checked by:
Issued by:
SPECIFICATION
PRODUCT:
MODEL:
SAW RESONATOR
HR345 TO-39
HOPE MICROELECTRONICS CO.,LIMITED
Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
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SAW Resonator
HR345
The HR345 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile metal
TO-39 case. It provides reliable, fundamental-mode, quartz frequency stabilization i.e. in
transmitters or local oscillators operating at 345.000 MHz.
1.Package Dimension (TO-39)
Pin
1
Configuration
Input / Output
Output / Input
Case Ground
2
3
Dimension
Data (unit: mm)
9.30±0.20
A
B
C
D
E
5.08±0.10
3.40±0.20
3±0.20∕5±0.20
0.45±0.20
2.Marking
3.Equivalent LC Model and Test Circuit
HR345
Color: Black or Blue
4.Typical Application Circuits
1) Low-Power Transmitter Application
2) Local Oscillator Application
5.Typical Frequency Response
6.Temperature Characteristics
Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
SAW Resonator
HR345
7.Performance
7-1.Maximum Ratings
Rating
Value
0
Unit
dBm
V
CW RF Power Dissipation
P
DC Voltage Between Any two Pins
Storage Temperature Range
Operating Temperature Range
VDC
Tstg
TA
±30
-40 to +85
-10 to +60
℃
℃
7-2.Electronic Characteristics
Characteristic
Sym
fC
Minimum
Typical
Maximum
Unit
MHz
kHz
dB
Absolute Frequency
344.930
345.070
Center Frequency
(+25℃)
Tolerance from 345.000MHz
±70
1.4
∆fC
IL
Insertion Loss
Quality Factor
2.0
55
Unloaded Q
QU
QL
T0
12,080
1,800
50 Ω Loaded Q
Turnover Temperature
Turnover Frequency
25
1.0
2.3
℃
kHz
ppm/℃2
ppm/yr
MΩ
Temperature
Stability
f0
fC
Frequency Temperature Coefficient
Absolute Value during the First Year
FTC
|fA|
0.032
≤10
Frequency Aging
DC Insulation Resistance Between Any Two Pins
Motional Resistance
RM
LM
CM
C0
17.5
97.6184
2.1823
2.6
26
Ω
Motional Inductance
RF Equivalent
µH
RLC Model
Motional Capacitance
fF
Pin 1 to Pin 2 Static Capacitance
2.9
pF
ꢀCAUTION: Electrostatic Sensitive Device. Observe precautions for handling!
C
○
2003. All Rights Reserved.
1. The center frequency, fC, is measured at the minimum IL point with the resonator in the 50Ω test system.
2. Unless noted otherwise, case temperature TC = +25°C±2°C.
3. 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.
4. Turnover temperature, T0, is the temperature of maximum (or turnover) frequency, f0. The nominal frequency at
any case temperature, TC, may be calculated from: f = f0 [1 - FTC (T0 - TC)2].
5. This equivalent RLC model approximates resonator performance near the resonant frequency and is provided for
reference only. The capacitance C0 is the measured static (nonmotional) capacitance between Pin1 and Pin2.
The measurement includes case parasitic capacitance.
6. Derived mathematically from one or more of the following directly measured parameters: fC, IL, 3 dB bandwidth, fC
versus TC, and C0.
7. The specifications of this device are based on the test circuit shown above and subject to change or
obsolescence without notice.
8. Typically, equipment utilizing this device requires emissions testing and government approval, which is the
responsibility of the equipment manufacturer.
9. Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications,
processes and circuits implemented within components or assemblies.
10. For questions on technology, prices and delivery, please contact our sales offices or e-mail sales@hoperf.com.
Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
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