140 MHz SAW Filter

5 MHz Bandwidth

Part Number: SF0140BA02486S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

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

www.SpectrumMicrowave.com

DSSF0140BA02486S Rev A

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

-

20.5

25

dB

Lower 1dB Band Edge

-

137.29

137.55

MHz

Upper 1dB Band Edge

142.45

142.71

-

MHz

Lower 3dB Band Edge

-

136.98

137.35

MHz

Upper 3dB Band Edge

142.65

143.12

-

MHz

Lower 30dB Band Edge

136.00

136.54

-

MHz

Upper 30dB Band Edge

-

143.49

144.00

MHz

Passband Ripple

3

-

0.8

1.0

dB p-p

Phase Ripple

3

-

2.5

5

deg p-p

Absolute Delay

-

1.84

2.3

us

Group Delay Variation

3,4

-

85

100

ns p-p

Rejection (70 to 125 MHz)

2

(125 to 135.5 MHz)

2

(144.5 to 155 MHz)

2

(155 to 210 MHz)

2

55

48

48

50

60

53

53

53

-

-

-

-

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.

4. A smoothing aperture of 0.1 MHz (0.5% of span) may be used for this measurement.

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

Typical Values:

Rp1 = 1 KΩ

Ls1 = 33 nH

Cp1 = 51 pF

Rp2 = 1 KΩ

Ls2 = 36 nH

Cp2 = 10 pF

Notes:

1. Recommend +/-5% tolerance inductors. Typical inductor Q=45.

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

10

5

1

6