140 MHz SAW Filter

5 MHz Bandwidth

Part Number: SF0140BA02449S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

• Phone 1-508-251-6400 • Fax 1-508-251-6401

www.SpectrumMicrowave.com

DSSF0140BA02449S Rev B 22-Feb-2010

ECN 36650

Page 2 of 3

SPECIFICATION

Parameter

Min

Typ

Max

Units

Center Frequency (Fc)

1

-

140.00

-

MHz

Insertion Loss

2

-

12.0

13.5

dB

Lower 1dB Band Edge

-

137.26

137.55

MHz

Upper 1dB Band Edge

142.45

142.86

-

MHz

Lower 3dB Band Edge

-

136.96

137.35

MHz

Upper 3dB Band Edge

142.65

143.14

-

MHz

Lower 30dB Band Edge

136.00

136.17

-

MHz

Upper 30dB Band Edge

-

143.88

144.00

MHz

Passband Ripple

3

-

0.42

0.7

dB p-p

Phase Ripple

3

-

1.3

3

deg p-p

Group Delay Variation

3

-

30

50

ns p-p

Rejection

2

(70 to 125 MHz)

(125 to 135.5 MHz)

(144.5 to 155 MHz)

(155 to 210 MHz)

50

43

43

40

55

47

47

44

-

dB

dB

dB

dB

Temperature Coefficient of Frequency

-

-23

-

ppm/˚C

Ambient Temperature

-

25

-

˚C

System Source and Load Impedance

50

Ω

Notes: 1. Defined as the average of the lower and upper 3 dB frequencies.

2. All dB levels are defined relative to the insertion loss.

3. Defined over 137.88 to 142.12 MHz.

MAXIMUM RATINGS

Parameter

Min

Max

Units

Storage Temperature Range

-40

+85

˚C

Input Power Level

+13

dBm

DC Voltage Between Each Terminal

15

V

MATCHING CIRCUIT

Ls1 = 15 nH

Lp1 = 22 nH

Ls2 = 27 nH

Lp2 = 22 nH

Notes:

1. Recommend +/-2% tolerance inductors, Q=40 minimum.

2. Component values shown are for reference only and may change depending on board layout.

Input

50 Ω Source

Single Ended

Output

50 Ω Load

Single Ended

11

5

All others