418.0 MHz

SAW Resonator

RF Monolithics, Inc.

Phone: (972) 233-2903

Fax: (972) 387-9148

E-mail: info@rfm.com

Page 2 of 2

RFM Europe

Phone: 44 1963 251383

Fax: 44 1963 251510

http://www.rfm.com

©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.

RO2103-102599

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

Typical Application Circuits

Temperature Characteristics

Equivalent LC Model

The following equivalent LC model is valid near resonance:

Case Design

Pin

Connection

1

Terminal 1

2

Terminal 2

3

Case Ground

Network

Analyzer

Network

Analyzer

Electrical Test:

1

2

3

Ω

Ω

50

Ω

Source at

F

C

Low-Loss

Matching

Network

50

Ω

to

Power Test:

P

P

INCIDENT

INCIDENT

CW RF Power Dissipation =

-

REFLECTED

REFLECTED

P

P

3

2

1

MPS-H10

+9VDC

47

RF Bypass

L1

C1

C2

200k

Ω

Modulation

Input

ROXXXX

Bottom View

470

Typical Low-Power Transmitter Application:

1

2

3

(Antenna)

+VDC

RF Bypass

L1

C2

ROXXXX

Bottom View

Typical Local Oscillator Application:

1

2

3

Output

+VDC

C1

Dimensions

Millimeters

Inches

Min

Max

Min

Max

A

9.40

0.370

B

3.18

0.125

C

2.50

3.50

0.098

0.138

D

0.46 Nominal

0.018 Nominal

E

5.08 Nominal

0.200 Nominal

F

2.54 Nominal

0.100 Nominal

G

2.54 Nominal

0.100 Nominal

H

1.02

0.040

J

1.40

0.055

The curve shown on the right

accounts for resonator contri-

bution only and does not in-

clude

oscillator

temperature

characteristics.

-80 -60 -40 -20

0 +20 +40 +60

0

-50

-100

-150

+80

-200

0

-50

-100

-150

-200

f

∆T = T

0.5 pF*

0.25 pF*

Cp

Co=

+

*Case Parasitics

R

L

C

0.5 pF*

C p

1

2

3

M

M

M

B

45°

J

(2 places)

D

(3 places)

H

G

E

F

C

A

Bottom View

Pin 1

Pin 2

Pin 3