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RO3144A - 8/15/11

Electrical Characteristics

Characteristic

Sym

Notes

Minimum

Typical

Maximum

Units

Frequency, +25 °C

RO3144A

2,3,4,5

916.300

916.700

MHz

RO3144A-1

916.350

916.650

RO3144A-2

916.400

916.600

Tolerance from 916.5 MHz

RO3144A

±200

kHz

RO3144A-1

±150

RO3144A-2

±100

Insertion Loss

IL

2,5,6

1.2

2.5

dB

Quality Factor

Unloaded Q

5,6,7

6600

50

Ω Loaded Q

750

Temperature Stability

Turnover Temperature

6,7,8

10

25

40

°C

Turnover Frequency

kHz

Frequency Temperature Coefficient

FTC

0.032

Frequency Aging

Absolute Value during the First Year

|fA|

1

<±10

ppm/yr

DC Insulation Resistance between Any Two Terminals

5

1.0

M

Ω

RF Equivalent RLC Model

Motional Resistance

5, 6, 7, 9

13.1

Ω

Motional Inductance

15

µH

Motional Capacitance

2.1

fF

Shunt Static Capacitance

5, 6, 9

2.09

pF

Test Fixture Shunt Inductance

2, 7

14.5

nH

Lid Symbolization

RO3144A: 663, RO3144A-1: 897, RO3144A-2: 813, // YWWS

• Ideal for 916.5 MHz Transmitters

• Very Low Series Resistance

• Quartz Stability

• Surface-mount Ceramic Case

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

The RO3144A 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 916.5 MHz.

Absolute Maximum Ratings

Rating

Value

Units

CW RF Power Dissipation

0

dBm

DC Voltage Between Terminals

±30

VDC

Case Temperature

-40 to +85

°C

Soldering Temperature, 10 seconds / 5 cycles maximum

260

°C

916.5 MHz

SAW

Resonator

RO3144A

RO3144A-1

RO3144A-2

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 in subsequent 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

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 the two terminals

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

measurement includes parasitic capacitance with "NC” pads unconnected.

Case parasitic capacitance is approximately 0.05 pF. Transducer parallel

SM5035-4

Pb