Datasheet > SF2228A

SF2228A

更新时间： 2024-11-29 12:23:11

品牌	Logo	应用领域
RFM		/
页数	文件大小	规格书
5页	535K
描述
Precision IF SAW Filter

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数据手册

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SF2228A 数据手册

Preliminary

SF2228A

• Precision IF SAW Filter

• Hermetic 13.3 x 6.5 mm Surface-mount Case

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

70 MHz

SAW Filter

Absolute Maximum Ratings

Rating

Value

+20

Units

dBm

VDC

°C

Maximum Incident Power in Passband

Maximum DC Voltage on any Non-ground Terminal

Storage Temperature Range in Tape and Reel

-40 to +85

Suitable for Lead-free Soldering - Maximum Soldering Profile

260 °C for 30 s

SM13365-12

Electrical Characteristics

Characteristic

Center Frequency

1 dB Bandwidth

3 dB Bandwidth

40 dB Bandwidth

Insertion Loss

Sym

Notes

Min

69.8

3.40

4.00

Typ

70.0

3.60

4.45

7.18

8.0

Max

Units

70.2

MHz

8.00

9.5

Amplitude Ripple, f ± 1.5 MHz

0.9

1.0

P-P

1, 2, 3

Group Delay Ripple, f ± 1.5 MHz

190

220

P-P

Relative Attenuation:

10 to 64.5 MHz

74 to 140 MHz

Operating Temperature Range

Frequency Temperature Coefficient

-40

+80

°C

-94

ppm/°C

Impedance Matching to 50 Ω Unbalanced Source/Load

Case Style

External L-C

SM13365-12 13.3 x 6.5 mm Nominal Footprint

RFM SF2228A YYWW

Lid Symbolization (YY = year, WW = week)

CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.

Notes:

Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance

matching to 50 Ω and measured with 50 Ω network analyzer.

Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.

Rejection is measured as attenuation below the minimum IL point in the passband. Rejection in final user application is dependent on PCB layout and external

impedance matching design. See Application Note No. 42 for details.

Part to part absolute delay measurement records the absolute delay mean across 1 dB passband.

"LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes.”

The design, manufacturing process, and specifications of this filter are subject to change.

Either Port 1 or Port 2 may be used for either input or output in the design. However, impedances and impedance matching may vary between Port 1 and Port

2, so that the filter must always be installed in one direction per the circuit design.

US and international patents may apply.

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

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