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Electrical Connections
The SAW resonator is bidirectional and
may be installed with either orientation.
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
Pin
1
2
3
4
5
Connection
NC
Terminal
NC
NC
NC
Power Test
50 Ω Source
at F C
P INCIDENT
P REFLECTED
Low-Loss
Matching
Network to
50 Ω
NC
NC
1
7
2
8
6
NC
3
4
5
NC
parasitic capacitance in the circuit.
6
Terminal
NC
NC
7
NC
8
NC
Typical Application Circuits
B
C
E
Typical Low-Power Transmitter Application
8
8
Modulation
200k Ω
+9VDC
1
7
D 7
1
Input
C1
L1
47
A
2
6
6
2
G
1
2
3
(Antenna)
3
5
5
3
8
4
7
6
5
4
4
F
ROXXXXC
Bottom View
C2
RF Bypass
470
Typical Local Oscillator Application
Output
Case Dimensions
200k Ω
Dimension
mm
Inches
+VDC
C1
+VDC
Min
Nom
Max
Min
Nom
Max
L1
A
B
4.8
4.8
5.0
5.0
5.2
5.2
0.189
0.189
0.197
0.197
0.205
0.205
1
2
8
4
3
C
D
E
2.08
1.17
1.7
0.082
0.046
0.067
ROXXXXC
Bottom View
7
6
5
C2
RF Bypass
F
0.64
0.025
G
2.39
2.54
2.69
0.094
0.100
0.106
Equivalent LC Model
Typical Test Circuit
The test circuit inductor, L TEST , is tuned to resonate with the static
capacitance, C O , at F C .
0.05 pF*
Co = Cp + 0.05 pF
Electrical Test
Cp
*Case Parasitics
Rm
Lm
Cm
Temperature Characteristics
The curve shown on the right accounts for resonator contribution only and
7
1
does not include LC component temperature contributions.
From 50 Ω
Network Analyzer
6
5
8
4
2
3
To 50 Ω
Network Analyzer
0
f C = f O , T C = T O
0
-50
-100
-150
-200
-80 -60 -40 -20
-50
-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
RO3112C - 3/26/08
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相关PDF资料
RO3112D SAW RESONATOR 433.42MHZ SM3838-6
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RO3112 SAW RESONATOR 433.42MHZ TO39-3
RO3118A SAW RESONATOR 318.0MHZ SM5035-4
RO3118D SAW RESONATOR 318.0MHZ SM3838-6
RO3118E SAW RESONATOR 318.0MHZ SM3030-6
RO3118 SAW RESONATOR 318.0MHZ TO39-3
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相关代理商/技术参数
RO3112D 功能描述:谐振器 433.42 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
RO3112E 功能描述:谐振器 433.42 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
RO3115A 制造商:RF Monolithics (RFM) 功能描述:417.5 MHZ SAW RESONATOR - Tape and Reel
RO3118 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
RO3118A 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
RO3118D 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
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