RO2044 RFM [RF Monolithics, Inc], RO2044 Datasheet - Page 2

• Manufacturer Part Number: RO2044
• Description: 318.00 M SAW Resonator
• Manufacturer: RFM [RF Monolithics, Inc]

Electrical Connections
This one-port, two-terminal SAW resonator is bidirectional. The terminals
are interchangeable with the exception of circuit board layout.
Typical Test Circuit
The test circuit inductor, L
tance, C
Typical Application Circuits
318.000 MHz
RF Monolithics, Inc.
RFM Europe
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
Power Test:
Pin
Electrical Test:
1
2
3
Typical Low-Power Transmitter Application:
Typical Local Oscillator Application:
ROXXXX
Bottom View
O
+VDC
at F
Case Ground
CW RF Power Dissipation =
Connection
Terminal 1
Terminal 2
Bottom View
ROXXXX
C
Modulation
1
.
Source at
F
50
C
Network
Input
Analyzer
3
Phone: [phone]
Phone: [phone]
2
200k
P
1
P
REFLECTED
INCIDENT
TEST
C1
C2
MPS-H10
, is tuned to resonate with the static capaci-
3
2
RF Bypass
L1
1
Low-Loss
Matching
Network
to
P
INCIDENT
50
470
C1
C2
Output
Pin 1
+VDC
3
2
-
P
(Antenna)
REFLECTED
RF Bypass
3
Bottom View
L1
Network
Analyzer
+9VDC
1
47
2
SAW Resonator
Pin 2
Pin 3
Fax: [phone]
Fax: [phone]
Temperature Characteristics
The curve shown on the right
accounts for resonator contri-
bution only and does not in-
clude
characteristics.
Equivalent LC Model
The following equivalent LC model is valid near resonance:
Case Design
Dimensions
oscillator
G
A
B
C
D
E
F
H
J
A
1
0.5 pF*
R
B
temperature
M
L
C
M
2.50
1.40
C p
Min
(3 places)
0.46 Nominal
5.08 Nominal
2.54 Nominal
2.54 Nominal
Millimeters
C
D
M
E-mail: [e-mail]
http://www.rfm.com
RO2044-082802
-100
-150
-200
-50
E
3
2
C o =
0.5 pF*
0
-80 -60 -40 -20
F
Max
9.30
3.18
3.50
1.02
C p
(2 places)
+
J
0.25 pF*
T = T
*Case Parasitics
G
0.098
0.055
C
Min
- T
0 +20 +40 +60
0.018 Nominal
0.200 Nominal
0.100 Nominal
0.100 Nominal
45°
O
f
( °C )
Inches
C
H
= f
O
Page 2 of 2
, T
0.366
0.125
0.138
0.040
Max
C
+80
= T
0
-50
-100
-150
-200
O