RO3023【PDF 1/2 页】SAW RESONATOR 433.97MHZ TO39-3

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RO3023

Ideal for European 433.92 MHz Transmitters

Low Series Resistance

Quartz Stability

Rugged, Hermetic, Low-Profile TO39 Case

433.97 MHz

SAW

The RO3023 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 transmitters operating

at 433.92 MHz. The RO3023 is designed specifically for remote-control and wireless security devices

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

Absolute Maximum Ratings

Resonator

Rating

CW RF Power Dissipation

(See: Typical Test Circuit)

DC Voltage Between Any Two Pins

(Observe ESD Precautions)

Case Temperature

Value

±30

-40 to +85

Units

dBm

VDC

°C

Soldering Temperature (10 seconds / 5 cycles max.)

260

°C

TO39-3 Case

Electrical Characteristics

Characteristic

Sym

Notes

Minimum

Typical

Maximum

Units

Center Frequency at +25 °C

Insertion Loss

Quality Factor

Absolute Frequency

Tolerance from 433.970 MHz

Unloaded Q

50 W Loaded Q

f C

Δ f C

Q U

Q L

2, 3, 4, 5

2, 5, 6

5, 6, 7

433.895

2.5

8,500

2200

434.045

±75

4.8

MHz

kHz

Temperature Stability

Turnover Temperature

Turnover Frequency

T O

f O

6, 7, 8

f c + 2.3

°C

kHz

Frequency Temperature Coefficient

FTC

0.037

ppm/°C 2

Frequency Aging

Absolute Value during the First Year

|fA|

≤ 10

ppm/yr

DC Insulation Resistance between Any Two Pins

1.0

M Ω

RF Equivalent RLC Model

Motional Resistance

R M

34.5

Test Fixture Shunt Inductance

Motional Inductance

Motional Capacitance

Pin 1 to Pin 2 Static Capacitance

Transducer Static Capacitance

L M

C M

C O

C P

L TEST

5, 7, 9

5, 6, 9

5, 6, 7, 9

2, 7

107

1.3

2.1

1.8

68.2

μH

Lid Symbolization

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

Notes:

RFM RO3023 Datecode

Frequency aging is the change in f C with time and is specified at +65°C or

less. Aging may exceed the specification for prolonged temperatures

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

decreasing in subsequent years.

The center frequency, f C , is measured at the minimum insertion loss point,

IL MIN , with the resonator in the 50 Ω test system (VSWR ≤ 1.2:1). The

shunt inductance, L TEST , is tuned for parallel resonance with C O at f C .

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

4,616,197.

Typically, equipment utilizing this device requires emissions testing and

government approval, which is the responsibility of the equipment

manufacturer.

Unless noted otherwise, case temperature T C = +25°C±2°C.

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

Derived mathematically from one or more of the following directly

measured parameters: f C , IL, 3 dB bandwidth, f C versus T C , and C O .

Turnover temperature, T O , is the temperature of maximum (or turnover)

frequency, f O . The nominal frequency at any case temperature, T C , may

be calculated from: f = f O [1 - FTC (T O -T C ) 2 ]. Typically, oscillator T O is

20°C less than the specified resonator T O .

This equivalent RLC model approximates resonator performance near the

resonant frequency and is provided for reference only. The capacitance

C O 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 grund connected to either Pin

1 or Pin 2 and to the case), add approximately 0.25 pF to C O .

subject to change without notice.

www.RFM.com E-mail: info@rfm.com

?2008 by RF Monolithics, Inc.

Page 1 of 2

RO3023 - 3/26/08

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