Phone: +86-23-62920684

Fax: +86-23-62805284

www.sipatsaw.com / sawmkt@sipat.com

Part Number

LBS12401

Rev. Date

2005-1-9

SIPAT Co., Ltd.

( CETC No. 26 Research Institute )

Nanping Huayuan Road No. 14

Chongqing, China, 400060

Rev.

1.0

Page 1/3

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N

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124MHz SAW Filter

4MHz Bandwidth

Part Number:LBS12401

Specifications

Parameter

Unit

Minimum

Typical

Maximum

Center Frequency

MHz

123.85

124

124.15

Insertion Loss

dB

-

26.7

28

3 dB Bandwidth

MHz

3.8

4.02

-

40 dB Bandwidth

MHz

-

4.85

5

50 dB Bandwidth

MHz

-

4.92

5.2

Passband Variation

dB

-

0.6

0.9

Absolute Delay

usec

-

3.26

4

Group Delay Variation(f0±1.9MHz)

nsec

-

80

300

Ultimate Rejection

dB

50

51

-

Material Temperature coefficient

KHz/°C

0.124

Ambient Temperature

°C

25

Package Size

DIP2712

(27.0x12.8x4.7mm3)

Notes:

1. All specifications are based on the test circuit shown

2. In production, devices will be tested at room temperature to a guardbanded specification to ensure

electrical compliance over temperature

3. Electrical margin has been built into the design to account for the variations due to temperature drift

and manufacturing tolerances

4. This is the optimum impedance in order to achieve the performance show

Matching Configuration

L1=150nH L2=(18+100)nH

C1=39pF c2=56pF

Source/Load Impedance=50 ohm

Notes - Component values may change depending

on board layout.

L2

L1

C1

C2