72.8 MHz SAW Filter

1 MHz Bandwidth

Part Number SF0073BA02447S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

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

www.SpectrumMicrowave.com

DSSF0073BA02447S Rev A

18-Feb-2010

ECN 36650

Page 2 of 3

SPECIFICATION

Parameter

Min

Typ

Max

Units

1

72.68

72.80

72.92

MHz

Minimum Insertion Loss

-

6.5

10

dB

1 dB Bandwidth

2

-

0.71

-

MHz

3 dB bandwidth

2

1.00

1.24

-

MHz

Lower 35 dB Band Edge

2

70.80

70.99

-

MHz

Upper 35 dB Band Edge

2

-

74.56

74.80

MHz

Group Delay Variation

-

80

150

ns p-p

Absolute Delay

-

0.75

-

us

Rejection (30 to Fc-3 MHz)

40

42

-

dB

Rejection (Fc+3 to 140 MHz)

35

38

-

dB

Temperature Coefficient

-

-23

-

ppm/˚C

Substrate Material

Ambient Temperature

-

25

-

˚C

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.

MAXIMUM RATINGS

Parameter

Min

Max

Units

Storage Temperature Range

-40

85

˚C

Operating Temperature Range

-40

70

˚C

Input Power Level

-

10

dBm

MATCHING CIRCUIT

Typical component values:

(Minimum inductor Q = 45)

Notes:

1. Recommend the use of

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

Ls1

=

390

nH

Ls2 =

470

nH

Input

50

Ω

Single-ended

Output

50

Ω

Single-ended

10

4

12

6