Phone: +86-23-62808818

Fax: +86-23-62805284

www.sipatsaw.com / sawmkt@sipat.com

Part Number

SP40001

Rev. Date

2007-04-25

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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400MHz Low-loss SAW Filter

45MHz Bandwidth

Part Number: SP40001

Specifications

Parameter

Unit

Minimum

Typical

Maximum

Center Frequency

MHz

-

400

-

Insertion Loss(f0±20MHz)

dB

-

16

18

1.5 dB Bandwidth

MHz

40

45.02

-

3 dB Bandwidth

MHz

45

46.25

-

35 dB Bandwidth

MHz

-

53.8

56

Passband Variation(f0±20MHz)

dB

-

0.8

1.5

Absolute Delay

usec

-

0.44

-

Group Delay Variation(f0±20MHz)

nsec

-

40

150

dB

30

35

-

dB

30

35

-

Ultimate Rejection

dB

30

38

Material Temperature coefficient

KHz/°C

-37.6

Ambient Temperature

°C

25

Package Size

SMD7.0*5.0

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=L2=10nH

C1=6.8pF

Source/Load Impedance=50 ohm

Notes - Component values may change depending

on board layout.

C1

INPUT

OUTPUT

50Ω

50Ω

L2

L1