®

RF Monolithics, Inc.

Phone: (972) 233-2903

Fax: (972) 387-9148

E-mail: info@rfm.com

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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.

RO2023-10-101999

Electrical Characteristics

Characteristic

Sym

Notes

Minimum

Typical

Maximum

Units

Center Frequency at +25 °C

Absolute Frequency

2, 3, 4, 5

433.720

434.220

MHz

Tolerance from 433.970 MHz

∆f

C

±250

kHz

Insertion Loss

IL

2, 5, 6

3.4

4.8

dB

Quality Factor

Unloaded Q

5, 6, 7

8,400

50 W Loaded Q

2,800

Temperature Stability

Turnover Temperature

6, 7, 8

22

37

52

°C

Turnover Frequency

kHz

Frequency Temperature Coefficient

FTC

0.037

Frequency Aging

Absolute Value during the First Year

|fA|

1

≤10

ppm/yr

DC Insulation Resistance between Any Two Pins

5

1.0

M

Ω

RF Equivalent RLC Model

Motional Resistance

5, 7, 9

48

74

Ω

Motional Inductance

102.2902

µH

Motional Capacitance

1.31488

fF

Pin 1 to Pin 2 Static Capacitance

5, 6, 9

1.8

2.1

2.4

pF

Transducer Static Capacitance

5, 6, 7, 9

1.8

pF

Test Fixture Shunt Inductance

2, 7

64

nH

Lid Symbolization

RFM RO2023-10

TO39-3 Case

•

Ideal for European 433.92 MHz Transmitters

•

Low Series Resistance

•

Quartz Stability

•

Rugged, Hermetic, Low-Profile TO39 Case

•

Complies with Directive 2002/95/EC (RoHS)

The RO2023-10 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It pro-

vides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating at

433.92 MHz. The RO2023-10 is designed specifically for remote-control and wireless security devices oper-

ating in Europe under ETSI I-ETS 300 220 and in Germany under FTZ 17 TR 2100.

Absolute Maximum Ratings

Rating

Value

Units

CW RF Power Dissipation (See: Typical Test Circuit)

+0

dBm

DC Voltage Between Any Two Pins (Observe ESD Precautions)

±30

VDC

Case Temperature

-40 to +85

°C

433.97 MHz

SAW

Resonator

RO2023-10

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

Notes:

1.

Aging may exceed the specification for prolonged temperatures above +65°C.

Typically, aging is greatest the first year after manufacture, decreasing in sub-

sequent years.

2.

3.

One or more of the following United States patents apply: 4,454,488 and

4,616,197.

4.

Typically, equipment utilizing this device requires emissions testing and gov-

ernment approval, which is the responsibility of the equipment manufacturer.

5.

6.

The design, manufacturing process, and specifications of this device are sub-

ject to change without notice.

7.

Derived mathematically from one or more of the following directly measured

8.

9.

This equivalent RLC model approximates resonator performance near the res-

static (nonmotional) capacitance between Pin1 and Pin 2 measured at low fre-

quency (10 MHz) with a capacitance meter. The measurement includes case

parasitic capacitance with a floating case. For usual grounded case applica-

tions (with grund connected to either Pin 1 or Pin 2 and to the case), add

Pb