140 MHz SAW Filter

14.4 MHz Bandwidth

Part Number: SF0140BA02434S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

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

www.SpectrumMicrowave.com

DSSF0140BA02434S Rev B

5-Mar-2010

ECN 36650

Page 2 of 3

SPECIFICATION

Parameter

Min

Typ

Max

Units

1

139.70

140.00

140.30

MHz

Minimum Insertion Loss

-

19.8

22

dB

1 dB Bandwidth

2

14.4

14.75

-

MHz

3 dB bandwidth

2

15.0

15.06

-

MHz

20 dB Bandwidth

2

-

15.90

16.10

MHz

40 dB Bandwidth

2

-

16.33

16.50

MHz

Lower 45 dB Band Edge

2

131.50

131.844

-

MHz

Upper 45 dB Band Edge

2

-

148.26

148.50

MHz

Amplitude Variation (Fc +/- 7 MHz)

--

0.7

1.0

dB p-p

Group Delay Variation (Fc +/- 7 MHz)

-

30

60

ns p-p

Absolute Delay

-

2.08

2.10

us

Rejection (129 to 131.5)

45

48

-

dB

Rejection (148.5 to 151 MHz)

45

48

-

dB

Rejection (40 to 129 MHz)

45

42

-

dB

Rejection (151 to 190 MHz)

45

51

-

dB

Rejection (190 to 400 MHz)

45

52

-

dB

Temperature Coefficient of Frequency

-

-94

-

ppm/˚C

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 at 63 MHz.

MAXIMUM RATINGS

Parameter

Min

Max

Units

Storage Temperature Range

-40

85

˚C

Operating Temperature Range

0

70

˚C

Input Power Level

-

10

dBm

MATCHING CIRCUIT

Typical component values:

(Minimum inductor Q = 40)

Notes:

1. Recommend use of 2% tolerance matching components.

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

Ls1

=

33

nH

Ls2 =

56

nH

Cp1 =

27

pF

Cp2 =

27

pF

10

5

All others

Input

50

Ω

Single-ended

Output

50

Ω

Single-ended

GND

GND