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Part Number

LB140DS30

Rev. Date

2007-12-14

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

0.48MHz Bandwidth

S

w

m

Part Number: LB140DS30

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

139.9

140

140.1

Insertion Loss

dB

-

10.5

12

1dB Bandwidth

MHz

0.48

0.61

-

3 dB Bandwidth

MHz

-

0.9

-

35 dB Bandwidth

MHz

-

1.94

2.1

Passband Variation

dB

-

0.1

0.6

Absolute Delay

usec

-

2.34

-

Phase Linearity(f0±0.2MHz)

deg

-

0.5

-

Group Delay variation(f0±0.25MHz)

nsec

-

80

200

f0±2.5MHz

dB

37

55

-

Ultimate Rejection

f0±20MHz

dB

40

60

-

Material Temperature coefficient

KHz/°C

0.14

Substrate Material

-

QZ

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

-

1

Package Size

SMD13.3*6.5C

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.