70 MHz SAW Filter

10 MHz Bandwidth

Part Number SF0070BA03089S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

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

www.SpectrumMicrowave.com

DSSF0070BA03089S Rev B

16-Feb-2010

ECN 36650

Page 2 of 3

SPECIFICATION

Parameter

Min

Typ

Max

Units

1

-

70.4

-

MHz

Insertion Loss

-

11.2

12.5

dB

Lower 1 dB Band Edge

-

65.1

65.4

MHz

Upper 1 dB Band Edge

75.4

75.7

-

MHz

Lower 40 dB Band Edge

62.6

63.0

-

MHz

Upper 40 dB Band Edge

-

77.7

78.2

MHz

Passband Ripple

2

-

1.1

1.5

dB p-p

Phase Linearity

2

-

8

11.5

deg p-p

Group Delay Variation

2

-

80

130

ns p-p

Absolute Delay

-

1.10

-

us

Rejection (20 to 62.6 MHz)

40

45

-

dB

Rejection (78.2 to 105 MHz)

38

41

-

dB

Source and Load Impedance

-

50

-

Ω

Temperature Coefficient of Frequency (Tc)

3

-

-90

-

ppm/˚C

-

25

-

°C

Notes:

1. Average of lower and upper 3 dB frequencies.

2. Evaluated over 65.4 to 75.4 MHz.

3. Typical change of filter frequency response with temperature is ∆f = (T-Tref) * Tc * Fref, in ppm

MAXIMUM RATINGS

Parameter

Min

Max

Units

Storage Temperature Range

-40

85

˚C

Input Power Level

-

10

dBm

MATCHING CIRCUIT

Typical component values:

(Minimum inductor Q = 45)

Notes:

1. Recommend use of 2% tolerance matching components.

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

Ls1

=

820

nH

Ls2 = 1200

nH

Lp1

=

270

nH

Lp2 =

330

nH

Input

50

Ω

Single-ended

Output

50

Ω

Single-ended