Datasheet > SF2185A-1

SF2185A-1

更新时间： 2024-01-31 22:04:52

品牌	Logo	应用领域
RFM		/
页数	文件大小	规格书
6页	433K
描述
Precision IF SAW Filter

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中文翻译

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数据手册

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SF2185A-1 数据手册

Preliminary

SF2185A-1

• Precision IF SAW Filter

• Balanced 50 ohm Operation

70.00 MHz

SAW Filter

• Hermetic 13.3 x 6.5 mm Surface-mount Case

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

Absolute Maximum Ratings

Rating

Value

+10

Units

dBm

VDC

°C

Maximum Incident Power in Passband

Maximum DC Voltage Between any Two Terminals

Storage Temperature Range in Tape and Reel

Suitable for Lead-free Soldering - Maximum Soldering Profile

-40 to +85

SM13365-12

260°C for 30 s

Electrical Characteristics

Characteristic

Sym

Notes

Min

Typ

Max

70.5

11.0

Units

Center Frequency

Minimum Insertion Loss

1 dB Bandwidth

69.5

70.0

10.6

10.2

10.7

12.35

MHz

MIN

8.1

9.1

MHz

3 dB Bandwidth

30 dB Bandwidth

13.20

Attenuation Referenced to IL

50 to 62.5 MHz

MIN:

62.5 to 63 MHz

77 to 77.5 MHz

33.5

77.5 to 90 MHz

Passband Ripple, F ± 3.0 MHz

0.65

12.5

170

1.0

P-P

Phase Ripple, F ± 4.5 MHz

1, 2, 3

deg

Group Delay Ripple, F ± 4.5 MHz

200

+80

P-P

Operating Temperature

-20

°C

ohm

Balanced Source Impedance

Balanced Load Impedance

Frequency Temperature Coefficient

ohm

-94

ppm/°C

Impedance Matching to 50 Ω

Case Style

External Source/Load L-C Networks

SM13365-12 13.3 x 6.5 mm Nominal Footprint

RFM SF2185A1 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

Page 1 of 6

SF2185A-1 - 7/1/09

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