RF1199 查看數據表（PDF） - RF Monolithics, Inc

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RF1199

297.4 MHz SAW Filter

RF Monolithics, Inc 

• Ideal Front-End Filter for 291.4 MHz Wireless Receivers

• Low-Loss, Coupled-Resonator Quartz Design

• Simple External Impedance Matching

• Rugged TO39 Hermetic Package

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

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The RF1199 is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide

front-end selectivity in 291.4 MHz receivers.

Absolute Maximum Ratings

Rating

Value

Units

Incident RF Power

+13

dBm

Max. DC voltage between any 2 terminals

±30

VDC

Case Temperature

-45 to +85

°C

Max. Soldering Profile

265°C for 10 s

Rating

Incident RF Power

DC Voltage Between Any Two Pins (Observe ESD Precautions)

Case Temperature5

Value

+13

±30

-45 to +85

Units

dBm

VDC

°C

RF1199

297.4 MHz

SAW Filter

TO39-3 Case

Electrical Specifications

Characteristic

Center Frequency at 25°C Absolute Frequency

Insertion Loss

Tolerance from 291.4 MHz

3 dB Bandwidth

Rejection

at fc - 21.4 MHz (Image)

at fc - 10.7 MHz (LO)

Ultimate

Temperature

Operating Case Temp.

Turnover Temperature

Turnover Frequency

Frequency Aging

External Impedance

Freq. Temp. Coefficient

Absolute Value during the First Year

Series Inductance

Shunt Capacitance

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

Sym

fc

ΔfC

IL

BW3

TC

TO

fO

FTC

|fA|

L

C

Notes

1, 2

1

1, 2

1

3, 4

5

1

Minimum

291.300

Typical

291.40

500

600

45

50

15

40

80

-35

24

39

fc+2

0.032

≤10

85

5

RFM RF1199

Maximum

291.500

±100

5.0

800

Units

MHz

kHz

dB

kHz

dB

+85

°C

54

°C

MHz

ppm/°C2

ppm/yr

nH

18

pF

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

Notes:

1. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 Ω test system with VSWR ≤

1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, fc. Note that insertion loss, bandwidth, and passband shape

are dependent on the impedance matching component values and quality.

2. The frequency fc is defined as the midpoint between the 3dB frequencies.

3. Where noted, specifications apply over the entire specified operating temperature range.

4. The turnover temperature, TO, is the temperature of maximum (or turnover) frequency, fo. The nominal frequency at any case temperature, Tc, may be

calculated from: f = fo [1 - FTC (To - Tc)2].

5. Frequency aging is the change in fc 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.

6. The design, manufacturing process, and specifications of this device are subject to change without notice.

7. One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.

8. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.

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

©2008 by RF Monolithics, Inc.

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RF1199 - 3/28/08

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