423.22 MHz
SAW Resonator
Electrical Connections
This one-port, two-terminal SAW resonator is bidirectional. The terminals
Temperature Characteristics
are interchangeable with the exception of circuit board layout.
fC = fO , T C = TO
The curve shown on the right
accounts for resonator contri-
bution only and does not in-
clude oscillator temperature
0
0
Pin
Connection
-50
-50
Bottom View
Pin 2
1
2
3
Terminal 1
Terminal 2
-100
-100
-150
-200
characteristics.
Pin 1
-150
Case Ground
-200
Pin 3
-80 -60 -40 -20
0
+40 +60 +80
+20
T = T - TO ( °C )
D
C
Typical Test Circuit
The test circuit inductor, L
, is tuned to resonate with the static capaci-
TEST
tance, C at F .
O
C
Equivalent LC Model
The following equivalent LC model is valid near resonance:
Electrical Test:
1
2
W
W
2
3
1
Network
Analyzer
Network
Analyzer
C =C
+
0.25 pF*
p
o
C
p
*Case Parasitics
R
L
C
M
M
M
0.5 pF*
0.5 pF*
Power Test:
3
1
P
INCIDENT
Low-Loss
50
W
Matching
Network
Source at
P
Case Design
REFLECTED
F
C
W
3
to50
2
C
G
B
-
CW RF Power Dissipation =
P
P
INCIDENT
REFLECTED
H
F
Typical Application Circuits
E
A
D
(3 places)
Typical Low-Power Transmitter Application:
J
(2 places)
200kW
45°
MPS-H10
Modulation
Input
+9VDC
47
C1
L1
1
2
(Antenna)
Millimeters
Min Max
Inches
Dimensions
Min
Max
C2
ROXXXX
3
RF Bypass
Bottom View
A
B
C
D
E
F
9.40
3.18
3.50
0.370
0.125
0.138
470
2.50
0.098
0.46 Nominal
0.018 Nominal
0.200 Nominal
0.100 Nominal
0.100 Nominal
Typical Local Oscillator Application:
5.08 Nominal
2.54 Nominal
2.54 Nominal
Output
+VDC
C1
L1
G
H
J
+VDC
1
2
1.02
0.040
1.40
0.055
C2
ROXXXX
Bottom View
3
RF Bypass
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
RO2102-102599
Page 2 of 2
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
RFM [ RF MONOLITHICS, INC ]
