RO3164;中文规格书,Datasheet资料

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?2008 by RF Monolithics, Inc.

RO3164 - 3/27/08

Electrical Characteristics Characteristic

Sym

Notes

Minimum

Typical Maximum

Units

Center Frequency (+25 °C)Absolute Frequency f C 2, 3, 4, 5868.150

868.55MHz Tolerance from 868.350 MHz

Δf C ±200

kHz Insertion Loss IL 2, 5, 6 1.0 2.0

dB

Quality Factor Unloaded Q Q U 5, 6, 7

560050 Ω Loaded Q Q L 600

Temperature Stability

Turnover Temperature T O 6, 7, 810

2540°C Turnover Frequency

f O f c kHz Frequency Temperature Coefficient

FTC 0.037ppm/°C 2Frequency Aging

Absolute Value during the First Year |f A |

1≤10

ppm/yr DC Insulation Resistance between Any Two Pins

5

1.0

M ΩRF Equivalent RLC Model

Motional Resistance R M 5, 7, 9

11ΩMotional Inductance L M 11μH Motional Capacitance

C M 3fF Pin 1 to Pin 2 Static Capacitance

C O 5, 6, 9 1.9pF Test Fixture Shunt Inductance

L TEST

2, 718

nH

Lid Symbolization (in Addition to Lot and/or Date Codes)RFM / RO3164 / YYWWS ##

TO39-3 Case

?Ideal for 868.350 MHz Transmitters ?Low Series Resistance ?Quartz Stability

?Rugged, Hermetic, Low-Profile TO39 Case ?

Complies with Directive 2002/95/EC (RoHS)

The RO3164 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 868.350MHz. The RO3164 is designed specifically for wireless remote controls and security transmitters, typically for automotive-keyless-entry, operating in the USA under FCC Part 15, in Canada under DoC RSS-210, and in Italy.

Absolute Maximum Ratings Rating

Value

Units

CW RF Power Dissipation (See Typical Test Circuit)

+0dBm DC Voltage Between Any Two Pins (Observe ESD Precautions)±30VDC Case Temperature

-40 to +85°C Soldering Temperature (10 seconds / 5 cycles max.)

260

°C

868.350 MHz

SAW Resonator

RO3164

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.Notes:

1.

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 significantly in subsequent years.

2.

The center frequency, f C , is measured at the minimum insertion loss point, IL MIN , with the resonator in the 50Ω test system (VSWR ≤ 1.2:1). The shunt inductance, L TEST , is tuned for parallel resonance with C O at f C . Typically, f OSCILLATOR or f TRANSMITTER is less than the resonator f C .

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

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 parameters: f C , IL, 3dB bandwidth, f C versus T C , and C O .8.

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 .

9.

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 (10MHz) 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 and to the case), add approximately 0.25pF to C O .

Pb

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?2008 by RF Monolithics, Inc. RO3164 - 3/27/08

Electrical Connections

This one-port, two-terminal SAW resonator is bidirectional. The terminals are interchangeable with the exception of circuit board layout.

Typical Test Circuit

The test circuit inductor, L TEST , is tuned to resonate with the static capacitance, C O at F C .

Typical Application Circuits

Temperature Characteristics

Equivalent LC Model

The following equivalent LC model is valid near resonance:

Case Design

Pin

Connection

1Terminal 12Terminal 23

Case Ground

Dimensions

Millimeters Inches Min

Max

Min

Max

A 9.400.370

B 3.18

0.125

C 2.50

3.50

0.098

0.138

D

0.46 Nominal 0.018 Nominal E 5.08 Nominal 0.200 Nominal F 2.54 Nominal 0.100 Nominal G 2.54 Nominal

0.100 Nominal

H 1.02

0.040

J

1.40

0.055

The curve shown on the right accounts for resonator

contribution only and does not include oscillator temperature characteristics.

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分销商库存信息: RFM

RO3164