76.8 MHz SAW Filter

20 MHz Bandwidth

Part Number SF0077BA02499S

Spectrum Microwave

400 Nickerson Road, Marlborough, MA 01752, USA

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

www.SpectrumMicrowave.com

DSSF0077BA02499S

Rev A

18-Feb-2010

ECN 36650

Page 2 of 3

SPECIFICATION

Parameter

Min

Typ

Max

Units

1

-

76.8

-

MHz

Insertion Loss (@ Fc)

-

16.2

20

dB

Amplitude Ripple

2

-

0.3

1

dB p-p

Amplitude Ripple in any 3.84 MHz band

2

-

0.2

0.6

dB p-p

Lower 1 dB Frequency

-

63.5

66.8

MHz

Upper 1 dB Frequency

86.8

89.3

-

MHz

Phase Linearity

-

1.3

5

deg p-p

Group Delay Variation

2

-

20

100

ns p-p

Group Delay Variation in any 3.84 MHz band

2

-

20

70

ns p-p

Absolute Delay

-

1.0

1.2

us

Rejection (5 to 7 MHz)

3

40

49

-

dB

Rejection (7 to 26 MHz)

3

45

53

-

dB

Rejection (35 to 57 MHz)

3

40

50

-

dB

Rejection (97 to 118 MHz)

3

40

45

-

dB

Rejection (128 to 149 MHz)

3

45

50

-

dB

Source and Load Impedance

50

ohms

Temperature Coefficient of Frequency

-94

ppm/˚C

Ambient Temperature

-

25

-

˚C

Notes:

1. Fixed reference frequency. All bandwidths are centered at this frequency.

2. Defined over 76.8+/-10 MHz.

3. Dependent upon PC board layout.

MAXIMUM RATINGS

Parameter

Min

Max

Units

Storage Temperature Range

-40

85

˚C

Operating temperature Range

-40

85

˚C

Input Power Level

-

13

dBm

MATCHING CIRCUIT

Typical Component values:

Ls1 = 150 nH

Ls2 = 100 nH

Cp2 = 41 pF

Notes:

•

Recommend 5% or better tolerance matching components. Typical inductor Q=45.

•

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

11

5

12

6