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Part Number

LB140DS48

Rev. Date

2010-06-25

SIPAT Co., Ltd.

( CETC No.26 Research Institute )

#14 Nanping Huayuan Road,

Chongqing, China, 400060

Ver.

3.1

Page 1/9

C

n

N

e

140MHz SAW Filter

40MHz Bandwidth

S

w

m

Part Number: LB140DS48

Features

For IF SAW filter

Ceramic Surface Mount Package

Small size

RoHS compliant (2002/95/EC), Pb-free

Specifications

Parameter

Unit

Minimum

Typical

(single-

ended)

Typical

(balance)

Typical

(single-

balance)

Typical

(balance

-single)

Maximum

Center Frequency

MHz

-

140

140

140

140

-

Insertion Loss

dB

-

11.6

11.6

11.1

11.6

13.5

2 dB Bandwidth

MHz

40

44

44

44.1

44

-

Passband Variation(f0±20MHz)

dB

-

0.8

1.1

1

0.9

2

Group Delay Variation(f0±20MHz)

nsec

-

35

39

50

35

100

Absolute Delay

usec

-

0.27

0.27

0.27

0.27

0.5

Input/output return loss(f0±20MHz)

dB

-

4.7/5.4

6.7/6.4

3.8/5.8

4.6/6.8

-

dB

-

48

70

68

60

-

dB

-

27

24

25

26

-

dB

-

9

8

8

9

-

Ultimate Rejection

dB

-

53

43

55

50

-

Material Temperature coefficient

KHz/°C

-11.48

Substrate Material

-

128LN

Ambient Temperature

°C

25

Operating Temperature Range

°C

-40

-

+85

Storage Temperature Range

°C

-50

-

+125

DC Voltage

V

0

Input Power

dBm

-

-

25

ESD Class

-

1A

Package Size

SMD3.8*3.8

Notes:

1.

All specifications are based on the test circuit shown;

2.

In production, all specifications are measured by Agilent Network analyzer and full 2 port calibration at room

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.