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参数资料
| 型号： | RO3118D |
| 厂商： | RFM |
| 文件页数： | 2/2页 |
| 文件大小： | 0K |
| 描述： | SAW RESONATOR 318.0MHZ SM3838-6 |
| 标准包装： | 500 |
| 系列： | RO |
| 频率： | 318MHz |
| 类型： | SAW |
| 特点： | 内置电容 |
| 频率稳定性： | 0.032ppm |
| 频率公差： | ±75kHz |
| 阻抗： | 1 兆欧 |
| 电容： | 2.8pF |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-SMD |
| 尺寸/尺寸： | 0.150" L x 0.150" W（3.80mm x 3.80mm） |
| 高度： | 0.055"（1.40mm） |
| 包装： | 带卷 (TR) |
Electrical Connections
The SAW resonator is bidirectional and
may be installed with either orientation.
Pin
1
NC
Connection
Power Test
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.
2
3
4
5
6
Terminal
NC
NC
Terminal
NC
50 Ω Source
at F C
P INCIDENT
P REFLECTED
Low-Loss
Matching
Network to
50 Ω
6
1
2
5
3
4
Typical Application Circuits
1
B
6
C
G
H
Typical Low-Power Transmitter Application
6
1
Modulation
200k Ω
+9VDC
A 2
5
E
5
2
I
Input
C1
L1
47
(Antenna)
4
3
3
4
1
2
3
D
J
6
5
4
C2
ROXXXXC
Bottom View
470
RF Bypass
Case Dimensions
Typical Local Oscillator Application
Output
Dimension
Min
mm
Nom
Max
Min
Inches
Nom
Max
+VDC
200k Ω
C1
L1
+VDC
A
3.60
3.80
4.0
0.14
0.15
0.16
B
C
D
E
3.60
1.00
0.95
2.39
3.80
1.20
1.10
2.54
4.0
1.40
1.25
2.69
0.14
0.04
0.033
0.090
0.15
0.05
0.043
0.10
0.16
0.055
0.05
0.110
ROXXXXC
Bottom View
6
1
2
5
3
4
C2
RF Bypass
G
H
I
0.90
1.90
0.50
1.0
2.0
0.6
1.10
2.10
0.70
0.035
0.75
0.020
0.04
0.08
0.024
0.043
0.83
0.028
J
1.70
1.8
1.90
0.067
0.07
0.075
Equivalent LC Model
0.05 pF*
Typical Test Circuit
The test circuit inductor, L TEST , is tuned to resonate with the static
capacitance, C O , at F C .
Cp
Co = Cp + 0.05 pF
*Case Parasitics
Electrical Test
Rm
Lm
Cm
Temperature Characteristics
The curve shown on the right accounts for resonator contribution only and
does not include LC component temperature contributions.
6
1
0
f C = f O , T C = T O
0
From 50 Ω
5
2
To 50 Ω
-50
-50
Network Analyzer
Network Analyzer
4
3
-100
-150
-200
-80 -60 -40 -20
-100
-150
-200
0 +20 +40 +60 +80
Δ T = T C - T O ( °C )
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 2 of 2
RO3118D - 3/27/08
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RO3118E | 功能描述:谐振器 318.0 MHz +/-75kHz Single Port RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel |
| RO3119A | 制造商:RF Monolithics (RFM) 功能描述:IC,RESON,317.5MHZ,SMD,2SM - Tape and Reel |
| RO3120A | 功能描述:谐振器 403.55MHz BW 75KHz IL 1.1dB Typ. SAW RoHS:否 制造商:Murata 频率:30 MHz 容差:25 PPM 系列:XRCGB 端接类型:SMD/SMT 工作温度范围:- 10 C to + 70 C 尺寸:1.6 mm W x 2 mm L x 0.65 mm H 封装:Reel |
| RO3122A | 制造商:RFM 功能描述:RO3122A293.125 MHZ SAW RESONATOR - Tape and Reel |
| RO3123A | 制造商:RFM 功能描述:307.3 MHZ SAW RESONATOR - Tape and Reel |
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