参数资料
型号: RO2156D
厂商: RF MONOLITHICS INC
元件分类: SAW谐振器
英文描述: 1-PORT SAW RESONATOR, 868.95 MHz
封装: ROHS COMPLIANT, CERAMIC, CASE SM3838-6, 6 PIN
文件页数: 2/2页
文件大小: 93K
代理商: RO2156D
www.RFM.com
E-mail: info@rfm.com
Page 2 of 2
2008 by RF Monolithics, Inc.
RO2156D - 3/25/08
-80 -60 -40 -20
0 +20 +40 +60
0
-50
-100
-150
+80
-200
0
-50
-100
-150
-200
f
C = f O , T C = T O
ΔT = T
C - T O ( °C )
(f
-f
o
) /
f
(ppm
)
0.05 pF*
0.05 pF
Cp
Co
+
=
*Case Parasitics
Cp
Rm
Lm
Cm
Equivalent LC Model
Temperature Characteristics
The curve shown on the right accounts for resonator contribution only and
does not include LC component temperature contributions.
Pin
Connection
1NC
2
Terminal
3NC
4NC
5
Terminal
6NC
Power Test
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
parasitic capacitance in the circuit.
Typical Test Circuit
The test circuit inductor, LTEST, is tuned to resonate with the static
capacitance, CO, at FC.
Electrical Test
Typical Application Circuits
From 50
Ω
Network Analyzer
To 50
Ω
Network Analyzer
2
3
6
5
4
1
Low-Loss
Matching
Network to
50
Ω
50
Ω Source
at F
C
P
INCIDENT
P
REFLECTED
2
3
6
5
4
1
Modulation
Input
ROXXXXC
Bottom View
200k
Ω
C1
L1
(Antenna)
47
+9VDC
C2
RF Bypass
470
Typical Low-Power Transmitter Application
2
3
6
5
4
1
+VDC
ROXXXXC
Bottom View
200k
Ω
C1
L1
+VDC
C2
RF Bypass
Typical Local Oscillator Application
Output
2
3
6
5
4
1
Case Dimensions
Dimension
mm
Inches
Min
Nom
Max
Min
Nom
Max
A
3.60
3.80
4.0
0.14
0.15
0.16
B
3.60
3.80
4.0
0.14
0.15
0.16
C
1.00
1.20
1.40
0.04
0.05
0.055
D
0.95
1.10
1.25
0.037
0.043
0.05
E
2.39
2.54
2.69
0.090
0.10
0.110
G
0.90
1.0
1.10
0.035
0.04
0.043
H
1.90
2.0
2.10
0.75
0.08
0.83
I
0.50
0.6
0.70
0.020
0.024
0.028
J
1.70
1.8
1.90
0.067
0.07
0.075
1
2
3
6
5
4
1
2
3
6
5
4
A
BC
D
J
E
GH
I
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相关代理商/技术参数
参数描述
RO2156D-1 制造商:RFM 制造商全称:RF Monolithics, Inc 功能描述:868.95 MHz SAW Resonator
RO2156D-2 制造商:RFM 制造商全称:RF Monolithics, Inc 功能描述:868.95 MHz SAW Resonator
RO2156E 制造商:RFM 制造商全称:RF Monolithics, Inc 功能描述:Ideal for European 868.95 MHz Transmitters
RO2156E-1 制造商:RFM 制造商全称:RF Monolithics, Inc 功能描述:Ideal for European 868.95 MHz Transmitters
RO2156E-2 制造商:RFM 制造商全称:RF Monolithics, Inc 功能描述:Ideal for European 868.95 MHz Transmitters