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©2009 by RF Monolithics, Inc.

RO3156E - 7/30/09

Electrical Characteristics

Characteristic

Sym

Notes

Minimum

Typical

Maximum

Units

Frequency, +25 °C

RO3156E

2,3,4,5

868.750

869.150

MHz

RO3156E-1

868.800

869.100

RO3156E-2

868.850

869.050

Tolerance from 868.95 MHz

RO3156E

±200

kHz

RO3156E-1

±150

RO3156E-2

±100

Insertion Loss

IL

2,5,6

1.2

2.0

dB

Quality Factor

Unloaded Q

5,6,7

6700

50

Ω Loaded Q

800

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

14.1

Ω

Motional Inductance

17.2

µH

Motional Capacitance

2.0

fF

Shunt Static Capacitance

5, 6, 9

2.3

pF

Test Fixture Shunt Inductance

2, 7

14.6

nH

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

RO3156E: 707, RO3156E-1: 708, RO3156E-2: 926 // YWWS

Standard Reel Quantity

Reel Size 7 Inch

10

500 Pieces / Reel

Reel Size 13 Inch

3000 Pieces / Reel

• Ideal for European 868.95 MHz Transmitters

• Very Low Series Resistance

• Quartz Stability

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

The RO3156E 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 868.95 MHz.This SAW is designed specifically for remote-control and wireless security

transmitters operating under ETSI EN 300 220.

Absolute Maximum Ratings

Rating

Value

Units

Input Power Level

0

dBm

DC Voltage

12

VDC

Storage Temperature

-40 to +125

°C

Operating Temperature Range

-40 to +125

°C

Soldering Temperature, 10 seconds / 5 cycles maximum

+260

°C

868.950 MHz

SAW

Resonator

RO3156E

RO3156E-1

RO3156E-2

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.

with the resonator in the 50

Ω test system (VSWR ≤ 1.2:1). The shunt

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 measured

8.

9.

This equivalent RLC model approximates resonator performance near the

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 capacitance can by calculated as:

10.

Tape and Reel Standard for ANSI / EIA 481.

SM3030-6 Case

3.0 X 3.0

Pb