Phone: +86-23-62808818

Fax: +86-23-62805284

www.sipatsaw.com / sawmkt@sipat.com

Part Number

LB140DS15

Rev. Date

2007-04-11

SIPAT Co., Ltd.

( CETC No. 26 Research Institute )

Nanping Huayuan Road No. 14

Chongqing, China, 400060

Rev.

1.1

Page 1/4

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140MHz Low-loss SAW Filter

20MHz Bandwidth

Part Number: LB140DS15

Specifications

Parameter

Unit

Minimum

Typical

Maximum

Center Frequency

MHz

-

140

-

Insertion Loss

dB

-

10.3

11.5

1 dB Bandwidth

MHz

18.4

21.21

-

3 dB Bandwidth

MHz

19.6

22.07

-

35 dB Bandwidth

MHz

-

25.66

26.4

40 dB Bandwidth

MHz

-

26.3

-

Passband Variation

(Over the 1dB bandwidth)

dB

-

0.6

1

Absolute Delay

usec

-

1.2

-

Group Delay Variation

nsec

-

80

160

dB

35

64

-

dB

40

52

-

dB

35

52

-

dB

40

45

-

dB

40

46

-

Ultimate Rejection

dB

35

73

-

-

-

1.67

2.8

-

-

1.41

2.3

Material Temperature coefficient

KHz/°C

-13.16

Ambient Temperature

°C

25

Package Size

SMD13.3*6.5

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