140 MHz SAW Filter

14 MHz Bandwidth

Part Number: SF0140BA03110S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

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

www.SpectrumMicrowave.com

DSSF0140BA03110S Rev B

8-Mar-2010

ECN 36650

Page 2 of 3

SPECIFICATION

Parameter

Min

Typ

Max

Units

Center Frequency (Fc)

1

139.6

140

140.4 MHz

Insertion Loss

2

-

8.4

10

dB

1 dB Bandwidth

13

14.5

-

MHz

3 dB Bandwidth

14

15.5

-

MHz

35 dB Bandwidth

-

19.4

20

MHz

Passband Ripple

3

-

0.3

1

dB p-p

Phase Deviation from Linear

3

-

2.1

15

deg p-p

Group Delay Variation

3

-

30

140

ns p-p

Absolute Delay

-

0.94

-

µs

Ultimate Rejection

4

40

43

-

dB

Substrate

Lithium Niobate

Temperature Coefficient of Frequency

-

-90

-

ppm/˚C

Ambient Temperature

-

25

-

˚C

System Source and Load Impedance

-

50

-

Ω

Notes: 1. Average of the lower and upper 3 dB frequencies.

2. Average level in the passband.

4. Evaluated over the intervals 20 – 126 MHz and 154 – 280 MHz.

MAXIMUM RATINGS

Parameter

Min

Max

Units

Storage Temperature Range

-40

+85

˚C

Input Power Level

+17

dBm

DC Voltage Between Each Terminal

15

V

MATCHING CIRCUIT

Component values (minimum inductor Q = 45):

Ls1 = 100 nH

Cp1 = 22 pF

Ls2 = 120 nH

Cp2 = 12 pF

Notes:

1. The component values shown above are those used in the Spectrum Microwave test fixture. Optimum

values may change depending on board layout.

2. 5% tolerance components or better are recommended.

11

5

1,2,3,4,6,

7,8,9,10,12

Input

50 Ω Source

Single Ended

Output

50 Ω Load

Single Ended