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Part Number

LB140DS34

Rev. Date

2008-07-28

SIPAT Co., Ltd.

( CETC No.26 Research Institute )

#14 Nanping Huayuan Road,

Chongqing, China, 400060

Ver.

1.0

Page 1/3

C

n

N

e

140MHz SAW Filter

3MHz Bandwidth

S

w

m

Part Number: LB140DS34

Features

For IF SAW filter

Single-ended operation

Ceramic Surface Mount Package

Small size

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

Specifications

Parameter

Unit

Minimum

Typical

Maximum

Center Frequency

MHz

139.8

140

140.2

Insertion Loss

dB

-

12.4

16

1 dB Bandwidth

MHz

1.9

2

2.2

3 dB Bandwidth

MHz

2.8

2.92

3.2

30 dB Bandwidth

MHz

-

5.81

6

Passband Variation

dB

-

0.2

0.8

Absolute Delay

usec

-

1.17

-

Group Delay Variation(f0±1MHz)

nsec

-

50

100

Ultimate Rejection

dB

30

33

-

Material Temperature coefficient

KHz/°C

-2.52

Substrate Material

-

112LT

Ambient Temperature

°C

25

Operating Temperature Range

°C

-40

-

+85

Storage Temperature Range

°C

-45

-

+105

DC Voltage

V

0

Input Power

dBm

-

-

10

ESD Class

-

1A

Package Size

SMD13.3*6.5A

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.