RF Monolithics, Inc.

Phone: (972) 233-2903

Fax: (972) 387-8148

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.

RO2101A-15-012403

Electrical Characteristics

Characteristic

Sym

Notes

Minimum

Typical

Maximum

Units

Center Frequency (+25 °C)

Absolute Frequency

2,3,4,5

433.845

433.995

MHz

Tolerance from 433.920 MHz

∆f

C

±75

kHz

Insertion Loss

IL

2,5,6

1.1

2.0

dB

Quality Factor

Unloaded Q

5,6,7

15,751

50

Ω Loaded Q

1,900

Temperature Stability

Turnover Temperature

6,7,8

10

25

40

°C

Turnover Frequency

Frequency Temperature Coefficient

FTC

0.032

Frequency Aging

Absolute Value during the First Year

1

≤10

ppm/yr

DC Insulation Resistance between Any Two Terminals

5

1.0

M

Ω

RF Equivalent RLC Model

Motional Resistance

5, 7, 9

14.4

26

Ω

Motional Inductance

83.3

µH

Motional Capacitance

1.62

fF

Shunt Static Capacitance

5, 6, 9

1.5

1.77

2.1

pF

Test Fixture Shunt Inductance

2, 7

74

nH

Lid Symbolization (in addition to Lot and/or Date Codes)

480

•

Ideal for European 433.92 MHz Transmitters

•

Very Low Series Resistance

•

Quartz Stability

•

•

Complies with Directive 2002/95/EC (RoHS)

The RO2101A-15 is a true one-port, surface-acoustic-wave (SAW) resonator in a surface-mount, ceramic

case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters

operating at 433.92 MHz. This SAW is designed specifically for remote-control and wireless security transmit-

ters operating 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 Terminals (Observe ESD Precautions)

±30

VDC

Case Temperature

-40 to +85

°C

Soldering Temperature (10 seconds / 5 cycles max.)

260

°C

433.92 MHz

SAW

Resonator

RO2101A-15

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 subse-

quent 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 govern-

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

5.

6.

The design, manufacturing process, and specifications of this device are subject

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 reso-

static (nonmotional) capacitance between the two terminals measured at low

frequency (10 MHz) with a capacitance meter. The measurement includes para-

sitic capacitance with "NC” pads unconnected. Case parasitic capacitance is

approximately 0.05 pF. Transducer parallel capacitance can by calculated as:

SM-2 Case