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©2008 by RF Monolithics, Inc.

RO3113 - 3/27/08

Electrical Characteristics

Characteristic

Sym

Notes

Minimum

Typical

Maximum

Units

Center Frequency (+25 °C)

Absolute Frequency

2, 3, 4, 5

314.425

314.575

MHz

Tolerance from 314.500 MHz

±75

kHz

Insertion Loss

IL

2, 5, 6

1.0

1.5

dB

Quality Factor

Unloaded Q

5, 6, 7

13000

50

Ω Loaded Q

1200

Temperature Stability

Turnover Temperature

6, 7, 8

10

25

40

°C

Turnover Frequency

Frequency Temperature Coefficient

FTC

0.037

Frequency Aging

Absolute Value during the First Year

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

10

Ω

Motional Inductance

70

µH

Motional Capacitance

3.7

fF

Pin 1 to Pin 2 Static Capacitance

5, 6, 9

2.9

pF

Transducer Static Capacitance

5, 6, 7, 9

2.9

pF

Test Fixture Shunt Inductance

2, 7

88

nH

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

RFM RO3113

TO39-3 Case

• Ideal for LO in 315 MHz Superhet Receivers with 500 kHz IF

• Very Low Series Resistance

• Quartz Stability

• Rugged, Hermetic, Low-Profile TO39 Case

• Complies with Directive 2002/95/EC (RoHS)

The RO3113 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It provides

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

approximately 314.5 MHz. The RO3113 is designed for IC based 315 MHz superhet receivers using a

500 kHz IF (Philips UAA3201T). Applications include wireless remote-control and security devices operating

in the USA under FCC Part 15 and in Canada under DoC RSS-210.

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

314.5 MHz

SAW

Resonator

RO3113

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

Notes:

1.

less. Aging may exceed the specification for prolonged temperatures

above +65°C. Typically, aging is greatest the first year after manufacture,

decreasing significantly in subsequent years.

2.

3.

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

4,616,197 and others pending.

4.

Typically, equipment designs utilizing this device require emissions testing

and government 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

8.

9.

This equivalent RLC model approximates resonator performance near the

is the static (nonmotional) capacitance between pin1 and pin 2 measured

at low frequency (10 MHz) with a capacitance meter. The measurement

includes case parasitic capacitance with a floating case. For usual

grounded case applications (with ground connected to either pin 1 or pin 2

Pb