326.4 MHz SAW Filter

10 MHz Bandwidth

Part Number SF0326BA03198S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

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

www.SpectrumMicrowave.com

DSSF0326BA03198S

Rev A 19-Mar-2010

ECN 36650

Page 2 of 3

SPECIFICATION

Parameter

Min

Typ

Max

Units

1

-

326.4

-

MHz

Insertion Loss

2

-

8.2

10

dB

Passband Ripple (321.4-331.4 MHz)

-

0.5

1

dB p-p

Group Delay Deviation (321.4-331.4 MHz)

-

35

60

ns p-p

Absolute Delay

-

580

750

ns

1 dB bandwidth

2

10

14.4

-

MHz

Lower 1 dB Frequency

-

319.5

321.4

MHz

Upper 1 dB Frequency

331.4

333.9

-

MHz

40 dB Bandwidth

-

23.3

25.5

MHz

Relative Attenuation (10 to 306.4 MHz)

2

47

50

-

dB

Relative Attenuation (306.4 to 312.4 MHz)

2

40

45

-

dB

Relative Attenuation (340.4 to 346.4 MHz)

2

40

44

-

dB

Relative Attenuation (346.4 to 500 MHz)

2

42

44

-

dB

Input IP3

3

37.5

-

-

dBc

Source and Load Impedance

50

ohms

Temperature Coefficient of Frequency

-86

ppm/˚C

Ambient Temperature

-

25

-

˚C

Notes:

1. Reference frequency. Computed as mean of the 3 dB frequencies.

2. All dB values are referenced to the insertion loss value, which is

recorded as minimum value in the passband.

3. Measured inside filter passband.

MAXIMUM RATINGS

Parameter

Min

Max

Units

Storage Temperature Range

-40

85

˚C

Operating Temperature Range

-20

85

˚C

Input Power Level

-

10

dBm

MATCHING CIRCUIT

Ls1 = 27 nH

Ls2 = 47 nH

Cp1 = 10 pF

Cp2 = 10 pF

Notes:

•

Recommend 2% or better tolerance matching components. Typical inductor Q=40.

•

Optimum values may change depending on board layout. Values shown are intended as a guide only.

Input

50

Ω

Single ended

Output

50

Ω

Single ended

9

4

10

5