Phone: +86-23-62808818

Fax: +86-23-62805284

www.sipatsaw.com / sawmkt@sipat.com

Part Number

LB079DS02

Rev. Date

2007-04-20

SIPAT Co., Ltd.

( CETC No. 26 Research Institute )

Nanping Huayuan Road No. 14

Chongqing, China, 400060

Ver.

1.0

Page 1/4

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78.5MHz Low-loss SAW Filter

20MHz Bandwidth

Part Number: LB079DS02

Specifications

Parameter

Unit

Minimum

Typical

Maximum

Center Frequency

MHz

78.3

78.5

78.7

Insertion Loss

dB

-

11

16

1 dB Bandwidth

MHz

18.9

19.62

-

3 dB Bandwidth

MHz

20

21

-

35 dB Bandwidth

MHz

-

24.46

26.1

Passband Variation

dB

-

0.7

1

Absolute Delay

usec

-

1.2

-

Group Delay Variation(f0±9MHz)

nsec

-

110

-

Material Temperature coefficient

KHz/°C

-7.38

Ambient Temperature

°C

25

Package Size

SMD13.3*6.5A

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=110nH

C1=56pF C2=47pF

Source/Load Impedance=50 ohm

Notes - Component values may change depending

on board layout.

C1

INPUT

OUTPUT

50Ω

50Ω

L1

L2

C2