72.5 MHz SAW Filter

20 MHz Bandwidth

Part Number SF0073BA01983S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

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

www.SpectrumMicrowave.com

DSSF0073BA01983S

Rev A

18-Feb-2010

ECN 36650

Page 2 of 3

SPECIFICATION

Parameter

Min

Typ

Max

Units

Center Frequency (Fc)

1

-

72.50

-

MHz

Insertion Loss at 72.5 MHz

-

16

17

dB

Lower 1 dB Frequency

2

-

61.20

62.50 MHz

Upper 1 dB Frequency

2

82.50

83.50

-

MHz

Lower 3 dB frequency

2

-

60.70

61.65 MHz

Upper 3 dB frequency

2

83.35

84.10

-

MHz

Passband Ripple

3

-

0.4

1.0

dB p-p

Phase Deviation from Linear

-

4

10

deg p-p

Group Delay Variation

4

-

30

150

ns p-p

Absolute Delay

-

1.09

-

µs

Rejection (10 to 58 MHz)

2

40

42

-

dB

Rejection (87.5 to 90 MHz)

2

35

41

-

dB

Rejection (90 to 125 MHz)

2

40

47

-

dB

Input Return Loss at 72.5 MHz

2

3.5

-

dB

Output Return Loss at 72.5 MHz

2

3.4

-

dB

Source and Load Impedance

-

50

-

Ω

Ambient Temperature (Tref)

-

25

-

˚C

Notes:

1. Average of lower and upper 3 dB band edge frequencies.

2. Evaluated over 62.5 to 82.5 MHz.

3. Specification is met over operating temperature range.

MAXIMUM RATINGS

Parameter

Min

Max

Units

Storage Temperature Range

-40

85

˚C

Operating Temperature Range

-10

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

=

100

nH

Ls2 =

82

nH

Input

50

Ω

Single-ended

Output

50

Ω

Single-ended

14

8

1

7